Radio Wave Absorbers
For EMC anechoic chambers/For microwave anechoic chambers
IP-BL/IP/IP-BX/ID/ICM/IB/IS/IS-SM/IK/ICT series
Thin type
IR/ISF/ITB series
Issue date:
September 2013
• All specifications are subject to change without notice.
• RoHS Directive Compliant Product: See the following for more details related to RoHS Directive compliant products. http://www.tdk.co.jp/rohs/
(1/18)
The compatibility of electronic devices with various electromagnetic environments has become an important issue in recent
years. This in turn has greatly increased the number applications
which require radio wave absorbing materials in frequencies ranging from the MHz range to the GHz range and even to the milliwave zone.
Applications for such materials include measures for reducing the
radiated noise and improving the noise resistance of electronic
devices (such as communication devices, office electronics, computers, home appliances, and devices mounted on automobiles),
the attenuation of radio wave reflections (such as ETC and radar’s
measures) and facilities for evaluating EMI measures (such as
anechoic chambers).
TDK offers a wide range of radio wave absorbing materials based
on our long tradition of developing electrical and magnetic material
technologies as well as electronic and radio wave technologies.
APPLICATION EXAMPLES OF ELECTROMAGNETIC ABSORBERS
ANECHOIC CHAMBERS
TDK’s radio wave absorbing materials are widely used in anechoic chamber applications. The photos shown here are some examples.
10-meter test range anechoic chamber (uses IP material for radio
wave absorption)
Small-scale anechoic chamber (uses ICM material for radio wave
absorption.)
IP-100BX
IS-060
IP-130BX
IS-SM050
Anechoic chamber for antenna evaluation (uses IS and IS-SM
materials for radio wave absorption)
Anechoic chamber for antenna evaluation (uses IP-BX material for
radio wave absorption)
IMPROVE ETC COMMUNICATION ENVIRONMENTS
PREVENTION OF FALSE IMAGE FROM A SHIP’S MAST
ISFE27F5
This is an example of electromagnetic absorbent panels
(ISFE27F5) for ETC systems (Electronic Toll Collection System)
installed at an ETC facility to improve the electromagnetic
environment.
IR material
The photo shows the installation of TDK IR material on the main
mast of a ship. This prevents false radar images from occurring by
greatly reducing the amount of reflection taking place.
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(2/18)
A key factor in absorbing unwanted electromagnetic energy efficiently and completely is selecting the most appropriate materials for the
application. This selection process must take into account the device or system being interfered with, its operating conditions, and the
ambient environment. It is not sufficient to merely choose any products, which absorb electromagnetic energy of the correct frequency
range.
SELECTION GUIDELINE OF ELECTROMAGNETIC ABSORBERS
Application
EMC anechoic chambers
Anechoic chambers
Microwave anechoic chambers
3-meter, 10-meter test range
Compact (3-meter test range)
EN, ETS
Floor reflecting frequencies of 1GHz or
higher
Car antenna
Antenna evaluation
High-power examination
Improvement of ETC communication environment
Prevents false radar image
Prevents parabolic antenna side lobe
Prevents unnecessary radiation
TDK material name
IP-BL, ID, ICM, IB
IP-BL, ID, ICM, IB
IP, IB
IK
IP-BX, IB, IS
IS, IS-SM，IK
ICT
ISF, ITB
IR, ISF, ITB
TDK ELECTROMAGNETIC ABSORBERS FOR ANECHOIC CHAMBERS
TDK material name
IP-BL, IP, IP-BX
Features
Ultra wideband
Fire retardant
Applicable frequency range
Basic composition
Composite material
Standard shape
Standard dimension
(mm)
Operating temperature range (°C)
TDK material name
Features
Applicable frequency range
Basic composition
Composite material
Standard shape
Standard dimension
(mm)
Operating temperature range (°C)
ID
Ultra wideband
Fire retardant
Lightweight
30MHz min.
Carbon+
inorganic-organic mixed paper
IB
ICM
Ultra wideband
Nonflammability
Low-profile type
30MHz to 18GHz
Ferrite+
inorganic material
IB
IP, IP-BX, ID, ICM
Cross-wedge shape
Wedge form
Board
600600T
600600T
100100T
100100T
–40 to +60
–40 to +60
–40 to +150
–40 to +60
IS, IS-SM
Ultra wideband
Fire retardant
300MHz min.
Carbon+
polyethylene
—
Pyramid form
Special pyramid form
600600T
600840T
–40 to +60
IK
Ultra wideband
Fire retardant
800MHz min.
Carbon+
polypropylene foam
—
Pyramid form
Special pyramid form
ICT
Ultra wideband
Nonflammability
1GHz min.
Carbon+
nonflammable material
—
600600T
100100T
–40 to +60
–40 to +300
30MHz min.
Carbon+
styrofoam
IB
Wedge form
Pyramid form
IB
Wideband
Nonflammability
Thin type
30MHz to 1GHz
Sintered ferrite
Pyramid form
TDK THIN TYPE ELECTROMAGNETIC ABSORBERS
TDK material name
Features
Applicable frequency range
Basic composition
Standard dimension (mm)
Operating temperature range (°C)
IR
Thin
Flexible
700MHz to 30GHz
Magnetic material+
synthetic rubber
300300T
–40 to +80
ISF
Lightweight
Fire retardant
800MHz min.
Carbon+
styrofoam
500500T
–40 to +60
ITB
Thin
Transparent
800MHz min.
PET+
ITO film
L1000
–40 to +80
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(3/18)
FOR EMC ANECHOIC CHAMBERS
IP-BL MATERIAL
Made of base material of styrofoam combined with IP radio wave
absorber, which is known for its ohmic loss properties, and IB
material, which is a ferrite radio wave absorber, these products
were developed for anechoic chambers.
Our composite absorbers fully utilize the features of each loss
material. In the 30 to 500MHz range the IB electromagnetic
absorbers, and in the higher range of 500MHz and higher the IP
electromagnetic absorbers, are designed to provide efficient electromagnetic absorption and deliver excellent electromagnetic
absorption performance for frequencies as low as 30MHz.
IP-090BLB, IP-130BLB
TDK’s composite electromagnetic absorbers highly praised around
the world. These unit-configured electromagnetic absorbers are
small, lightweight, inexpensive and deliver excellent electromagnetic absorption performance over a wide bandwidth. They are
used widely in anechoic chambers for 3- and 10-meter ranges as
well as in large anechoic chambers designed for specific applications.
FEATURES
• Ultra-wideband electromagnetic absorber.
• Stable against acids, bases and water vapor, and offers long
service life.
• Uses materials that, when burned, emit gases that are relatively
harmless to humans.
• Fire retardant (NRL Classes 1, 2 and 3; UL-94HBF).
• White end caps (sold separately) improve the illumination inside
the chamber.
Standard
weight
(kg)
IP-045C
45
3
IP-045BLB
45
1.5
IP-065BLB
65
2
IP-090BLB
93
3
IP-130BLB
128
3.5
Not including the mass of ferrite
BL B
(4) (5)
(1)TDK electromagnetic absorbers
(2) Base material code (P: Styrofoam)
(3) Length dimensional code (090: 93cm)
(4) Structure code
(5) Version code
515
515
Applicable anechoic chambers
Compact (3-meter test range),
3-meter test range (EMS floors
available)
Compact (3-meter test range),
3-meter test range
3-meter and 10-meter test ranges
3-meter and 10-meter test ranges
10-meter test ranges
930
Length
(cm)
I
P - 090
(1) (2)
(3)
SHAPES AND DIMENSIONS
STANDARD MATERIALS
Material name
PRODUCT IDENTIFICATIONS
600
0
60
Dimensions in mm
TYPICAL ABSORPTION CHARACTERISTICS (VERTICAL INCIDENCE)
Material name
IP-045C
IP-045BLB
IP-065BLB
IP-090BLB
IP-130BLB
30MHz
18
18
18
22
24
50MHz
18
22
22
23
28
100MHz
15
18
20
20
25
500MHz
20
18
18
20
22
Unit: dB
1GHz
20
18
18
20
23
5GHz
30
16
18
20
25
18GHz
40
18
20
20
20
40GHz
40
18
20
20
20
• 200v/m Can be applied to EMS tests
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(4/18)
FOR EMC ANECHOIC CHAMBERS
ID MATERIAL
A thin-plate electromagnetic absorber in which a special
conductive fabric is incorporated with an inorganic-organic mixed
base material, having a light weight and high flammability.
A composite electromagnetic absorber combining an ID
electromagnetic absorber utilizing ohmic loss and an IB
electromagnetic absorber utilizing the magnetic resonance loss
characteristics of ferrite.
Our composite absorbers fully utilize the features of each loss
material. In the 30 to 500MHz range the IB electromagnetic
absorbers, and in the higher range of 500MHz and higher the ID
electromagnetic absorbers, are designed to provide efficient
electromagnetic absorption and deliver excellent electromagnetic
absorption performance for frequencies as low as 30MHz.
ID-045
A cross-wedge shape is formed to obtain optimal electromagnetic
wave absorbing efficiency. High flammability is realized through an
inorganic-organic mixed base material.
Flat-pile supported separated/folded structures greatly reduce
cubic capacity during transportation, realizing a weight reduction
as well as a decrease in the environmental burden.
It is widely used in 3-meter test range anechoic chambers, etc.
FEATURES
• Ultra-wideband electromagnetic absorber.
• Lightweight.
• Fire retardant.
(JIS A 1322 flame retardant grade 1, UL94V-0, UL94VTM-0)
STANDARD MATERIALS
Material name
Length
(cm)
Standard
weight
(kg)
Applicable anechoic chambers
ID-045
45
1
Compact (3-meter test range),
3-meter test range
I
D - 045
(1) (2)
(3)
(1)TDK electromagnetic absorbers
(2) Base material code (D: Inorganic-organic mixed base material)
(3) Length dimensional code (045: 45cm)
SHAPES AND DIMENSIONS
450
including the mass of ferrite
60
0
Not
PRODUCT IDENTIFICATIONS
600
Dimensions in mm
TYPICAL ABSORPTION CHARACTERISTICS (VERTICAL INCIDENCE)
Material name
ID-045
30MHz
17
50MHz
22
100MHz
22
500MHz
17
Unit: dB
1GHz
17
5GHz
20
18GHz
30
40GHz
30
・200v/m Can be applied to EMS tests
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(5/18)
FOR EMC ANECHOIC CHAMBERS
ICM MATERIAL
A composite electromagnetic absorber utilizing the characteristics
of the ICM electromagnetic absorber, which is a composite magnetic loss object made of an inorganic base and ferrite powder,
and the IB electromagnetic absorber that utilizes the magnetic loss
of ferrite.
Our composite absorbers fully utilize the features of each loss
material. In the 30 to 500MHz range the IB electromagnetic
absorbers, and in the higher range of 500MHz and higher the ICM
electromagnetic absorbers, are designed to provide efficient electromagnetic absorption and deliver excellent electromagnetic
absorption performance for frequencies as low as 30MHz.
ICM-006
A 6-cm long composite electromagnetic absorber for ECM
anechoic chambers. The absorber is small but provides excellent
electromagnetic absorption performance starting at low frequencies. This product is optimally suited for anechoic chambers with
3-meter test ranges and small chambers.
Additionally, because all of these products are composed of inorganic material, they are suited for high-power irradiation tests during EMS tests.
PRODUCT IDENTIFICATIONS
I
C M - 006
(1) (2) (3)
(4)
(1) TDK electromagnetic absorbers
(2) Base material code (C: Inorganic material)
(3) Ferrite material
(4) Length dimensional code (006: 6cm)
SHAPES AND DIMENSIONS
ICM material
60
FEATURES
• Ultra-wideband electromagnetic absorber.
• Composed of inorganic material and offers long service life.
• Composed of inorganic material and is nonflammable.
(Non-combustible material certificate no.：NM-0582)
• Suited for high-power irradiation tests.
0
10
STANDARD MATERIALS
Material name
ICM-006
Not
Length
(cm)
6
0
10
Standard
weight
(kg)
Applicable anechoic
chambers
0.8
Compact (3-meter test range),
3-meter and 10-meter test
ranges (EMS floors available)
including the mass of ferrite
Dimensions in mm
Notes
• Perforated IB electromagnetic absorbers are used.
• Screws are sometimes used to install items to the ceiling and walls.
TYPICAL ABSORPTION CHARACTERISTICS (VERTICAL INCIDENCE)
Material name
ICM-006
30MHz
14
50MHz
18
100MHz
20
500MHz
20
Unit: dB
1GHz
20
5GHz
20
10GHz
20
18GHz
20
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(6/18)
FOR EMC ANECHOIC CHAMBERS
IB MATERIAL
An electromagnetic absorber utilizing the magnetic resonance loss
characteristic of ferrite. The sintered ferrite has been baked at a
temperature of over 1000°C and possesses physical properties
equivalent to those of external porcelain tiles.
IB-017
A sintered ferrite delivering excellent electromagnetic absorption
performance particularly in the VHF band. This extremely thin
electromagnetic absorber is 6 mm or less thick.
FEATURES
• This is a thin-type wide-band electromagnetic absorber.
• This is highly weather resistant.
• Can be used as building material.
REFLECTION ATTENUATION vs. FREQUENCY
CHARACTERISTICS (Measured using coaxial tube)
IB-017
PRODUCT IDENTIFICATIONS
50
100×100×5.2
(4)
WH
(5)
(1) TDK electromagnetic absorbers
(2) Base material code (B: Sintered ferrite)
(3) Material code
(4) Dimension
(5) With hole
PHYSICAL PERFORMANCES
Bending strength (Pa)
Tensile strength (Pa)
Compression hardness (Pa)
Termal expansion coefficient (K–1)
Thermal conductivity (W/(m • K))
Specific heat (J/(kg • K))
1.4108
3.1109
7.81010
1.110–5
4
640
Reflection attenuation (dB)
I
B - 017
(1) (2)
(3)
40
30
20
10
0
10
50
100
Frequency (MHz)
500
1000
STANDARD MATERIALS
Material name
IB-017 100×100×5.2WH
Standard
dimensions
(mm)
Standard
weight
Applications
(g)
EMC anechoic
1001005.5 270
chambers,
VOR and others
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(7/18)
FOR EMS FLOORS
IS-S MATERIAL
An electromagnetic absorber consisting of a polyethylene foam
base and utilizing the ohmic loss of carbon.
Specifically designed for oblique incidence, the IS-S electromagnetic absorber provides excellent oblique incidence characteristics
and can be used as electromagnetic absorbent flooring material
for EMS tests from frequencies as low as 80MHz. It can also be
used in microwave anechoic chambers.
IS-080S
A specially designed wedged-shaped absorber with a length of
80cm. It can be used as electromagnetic absorbent flooring material for EMS tests from frequencies as low as 80MHz.
It delivers excellent oblique incidence performance starting at low
frequencies.
PRODUCT IDENTIFICATIONS
SHAPES AND DIMENSIONS
I
S - 080 S
(1) (2)
(3) (4)
780
(1) TDK electromagnetic absorbers
(2) Base material code (S: Polyethylene foam)
(3) Length dimensional code (080: 78cm)
(4) For diagonal incidence
600
0
84
Dimensions in mm
TYPICAL ABSORPTION CHARACTERISTICS (45° INCIDENCE ANGLE)
Material name
IS-080S
TE
TM
80MHz
15
15
100MHz
15
15
300MHz
25
25
500MHz
27
27
Unit: dB
800MHz
35
30
1GHz
35
35
2GHz
37
40
3GHz
55
55
• Representative power withstand performance: 50mW/cm2 (200v/m Can be applied to EMS tests )
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(8/18)
FOR MICROWAVE ANECHOIC CHAMBERS
IS MATERIAL
An electromagnetic absorber consisting of a polyethylene foam
base and utilizing the ohmic loss of carbon. Not only is the IS electromagnetic absorber capable of absorbing microwaves, it also
delivers excellent electromagnetic absorption performance through
millimeter and submillimeter waves (through 1THz).
IS-030A2
A 30-cm long pyramidal electromagnetic absorber. It delivers
excellent electromagnetic absorption performance over a wide
band between 0.8 and 110GHz.
It is optimally suited for applications in a wide range of wireless
access applications and microwave anechoic chambers for conducting cellular phone related tests.
SHAPES AND DIMENSIONS
T
FEATURES
• Ultra-wideband electromagnetic absorber.
• Excellent electromagnetic absorption performance in the millimeter wave band.
• The tip is designed to reduce creep and deliver stable performance.
• Stable against chemicals and offers long service life.
• Uses materials that, when burned, emit gases that are relatively
harmless to humans.
• Fire retardant (NRL Classes 1, 2 and 3; UL-94HBF).
• Walking material are also available.
• Available white end caps can be used to improve the indoor illumination.
0
60
600
PRODUCT IDENTIFICATIONS
Dimensions in mm
I
S - 030 A
(1) (2)
(3) (4)
(1) TDK electromagnetic absorbers
(2) Base material code (S: Polyethylene foam)
(3) Length dimensional code (030: 30cm)
(4) Version code
TYPICAL ABSORPTION CHARACTERISTICS (VERTICAL INCIDENCE)
Material name
IS-005A
IS-012A
IS-015A
IS-023A
IS-030A2
IS-045
IS-060
IS-075
IS-100
0.3GHz
—
—
—
—
—
—
—
25
30
0.5GHz
—
—
—
—
—
30
32
35
40
0.8GHz
—
20
20
23
30
35
37
40
45
1GHz
—
20
20
30
35
40
42
45
50
3GHz
15
30
35
45
45
45
50
55
55
Unit: dB
5GHz
20
40
40
50
50
50
55
55
55
10GHz
30
55
55
55
55
55
55
55
55
30GHz
50
55
55
55
55
55
55
55
55
50GHz
50
55
55
55
55
55
55
55
55
110GHz
50
50
50
50
50
50
50
50
50
• Representative power withstand performance: 50mW/cm2
Material
name
Length
(mm)
IS-005A
50
IS-012A
120
IS-015A
150
IS-023A
230
IS-030A2 300
IS-045
450
IS-060
600
IS-075
750
IS-100
1000
Standard
weight
(kg)
0.7
1.6
2.2
3.0
3.3
4.8
6.0
7.0
10.5
Number of pyramids
24row24row=576
15row15row=225
15row15row=225
8row8row=64
6row6row=36
4row4row=16
3row3row=9
2row2row=4
2row2row=4
ABSORBERS FOR WALKING MATERIAL
PRODUCT IDENTIFICATIONS
I
S (1) (2)
(3)
FL
(4)
SHAPES AND DIMENSIONS
Polyethylene foam
(to prevent electrification)
Reinforcement
Polystyrol foam
(1) TDK electromagnetic absorbers
(2) Base material code
(S: Polyethylene foam)
(3) Length dimensional code
(4) Type (FL: walking material)
Electromagnetic absorber
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(9/18)
DESIGNED SPECIFICALLY FOR OBLIQUE INCIDENCE
IS-SM MATERIAL
An electromagnetic absorber consisting of a polyethylene foam
base and utilizing the ohmic loss of carbon. Not only is the IS-SM
absorber, which is designed specifically for oblique incidence,
capable of absorbing microwaves, it also delivers excellent electromagnetic absorption performance through millimeter waves.
IS-SM050
A special pyramidal electromagnetic absorber with a length of
50cm. It provides excellent oblique incidence characteristics for a
wide band between 0.8 and 110GHz. It is optimally suited for applications in a wide range of wireless access operations and as sidewall panels in microwave anechoic chambers for conducting
cellular phone related tests.
Our line up includes IS-SM080 and IS-SM100 that deliver excellent
electromagnetic absorption performance starting at low frequency
ranges.
STANDARD DIMENSIONS
Radio wave intake portion
Base
T
FEATURES
• Ultra-wideband electromagnetic absorber.
• Excellent electromagnetic absorption performance for oblique
incidences.
• The product can be made thinner than pyramidal absorbers.
• The tip is designed to reduce creep and deliver stable performance.
• Stable against chemicals and offers long service life.
• Uses materials that, when burned, emit gases that are relatively
harmless to humans.
• Fire retardant (NRL Classes 1, 2 and 3; UL-94HBF).
L
PRODUCT IDENTIFICATIONS
Material name
I
S - SM 050
(1) (2)
(3) (4)
IS-SM050
IS-SM080
IS-SM100
(1) TDK electromagnetic absorbers
(2) Base material code (S: Polyethylene foam)
(3) Designed specifically for oblique incidence.
Supports millimeter waves.
(4) Length dimensional code (050: 50cm)
W
Standard
dimensions(mm)
[LWT]
600600500
840600800
8406001000
Standard
weight
(g)
4.8
10.0
12.5
TYPICAL ABSORPTION CHARACTERISTICS (50° INCIDENCE ANGLE)
Material name
IS-SM050
IS-SM080
IS-SM100
TE
TM
TE
TM
TE
TM
0.3GHz
—
—
—
—
30
20
0.5GHz
—
—
30
30
35
30
0.8GHz
35
30
40
40
40
40
1GHz
40
35
40
45
45
45
3GHz
45
45
55
55
55
55
Unit: dB
5GHz
50
50
55
55
55
55
10GHz
55
55
55
55
55
55
30GHz
55
55
55
55
55
55
50GHz
55
55
55
55
55
55
110GHz
50
50
50
50
50
50
• Representative power withstand performance: 50mW/cm2
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(10/18)
FOR MICROWAVE ANECHOIC CHAMBERS
IK MATERIAL
An electromagnetic absorber consisting of a polypropylene foam
base and utilizing the using ohmic loss of carbon.
The IK electromagnetic absorber is lightweight and delivers
excellent absorption performance in the 1GHz-plus microwave
range.
IK-030
A 30-cm long pyramidal electromagnetic absorber.
An electromagnetic absorber that delivers excellent absorption
performance in the 1GHz-plus microwave range.
Optimally suited to be used as CISPR compliant electromagnetic
absorbent floor material for the 1GHz plus range.
SHAPES AND DIMENSIONS
300
FEATURES
• Ultra-wideband electromagnetic absorber.
• Delivers excellent absorption performance in the 1GHz-plus
microwave range.
• The tip is designed to reduce creep and deliver stable performance.
• Stable against chemicals and offers long service life.
• Uses materials that, when burned, emit gases that are relatively
harmless to humans.
• Fire retardant (UL-94HBF equivalent).
60
0
0
60
PRODUCT IDENTIFICATIONS
I
K - 030
(1) (2)
(3)
(1) TDK electromagnetic absorbers
(2) Base material code (K: Polypropylene foam)
(3) Length dimensional code (030: 30cm)
TYPICAL ABSORPTION CHARACTERISTICS (VERTICAL INCIDENCE)
Material name
IK-030
Length
(cm)
300
Standard weight
(kg)
2
Number of pyramids 1GHz
6rowｘ6row=36
• Representative power withstand performance: 50mW/cm2
35
Unit: dB
3GHz
5GHz
10GHz
18GHz
45
50
50
50
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(11/18)
FOR FM BAND AND MICROWAVE ANECHOIC CHAMBERS
IP-BX MATERIAL
A composite electromagnetic absorber made by combining the IPBX electromagnetic absorber, which consists of a styrofoam base
and utilizes the ohmic loss of carbon, and an electromagnetic
absorber that uses the magnetic loss of ferrite. Each of the loss
material are matched for impedance to deliver excellent electromagnetic absorption performance from as low as the 70MHz FM
band.
IP-100BX, IP-130BX
TDK composite electromagnetic absorbers praised highly in tests
for automobile antennas. IP-100BX delivers excellent electromagnetic absorption performance for vertical incidences starting at the
FM band to the microwave range.
IP-130BX delivers excellent electromagnetic absorption performance for oblique incidences starting at the FM band to the microwave range.
These products are used widely in anechoic chambers for testing
automobile antennas and large special purpose anechoic chambers.
FEATURES
• Ultra-wideband electromagnetic absorber.
• Stable against acids, bases and water vapor, and offers long
service life.
• Uses materials that, when burned, emit gases that are relatively
harmless to humans.
• Fire retardant (NRL Classes 1, 2 and 3; UL-94HBF).
1300
SHAPES AND DIMENSIONS
PRODUCT IDENTIFICATIONS
60
0
I
P - 130 B X
(1) (2)
(3) (4) (5)
(1) TDK electromagnetic absorbers
(2) Base material code (P: Styrofoam)
(3) Length dimensional code (130: 130cm)
(4) Version code
(5) Ferrite material
600
Dimensions in mm
STANDARD MATERIALS
Length
Standard weight
(cm)
(kg)
IP-045BX
45
3
IP-100BX
100
6
IP-130BX
130
6.5
Not including the mass of ferrite
Material name
Shapes
Wedge form
Wedge form
Pyramid form
TYPICAL ABSORPTION CHARACTERISTICS (VERTICAL INCIDENCE)
Material name
IP-045BX
IP-100BX
70MHz
23
25
80MHz
25
30
100MHz
23
30
500MHz
20
30
Unit: dB
1GHz
22
30
5GHz
25
40
18GHz
40
40
40GHz
40
40
TYPICAL ABSORPTION CHARACTERISTICS (60° INCIDENCE ANGLE)
Material name
IP-130BX
TE
TM
70MHz
10
20
80MHz
10
20
100MHz
12
20
500MHz
35
35
Unit: dB
1GHz
45
45
5GHz
50
50
18GHz
50
50
40GHz
50
50
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
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FOR EMC/MICROWAVE ANECHOIC CHAMBERS
IP MATERIAL
A composite electromagnetic absorber made by combining the IP
electromagnetic absorber, which consists of a styrofoam base and
utilizes the ohmic loss of carbon, and an electromagnetic absorber
that uses the magnetic loss of ferrite.
These composite absorbers fully utilize the features of each loss
material. In ranges of 500MHz or lower the IB electromagnetic
absorbers, and in the higher range of 500MHz and higher the IP
electromagnetic absorbers, are designed to provide efficient electromagnetic absorption.
IP-045E
TDK composite electromagnetic absorbers praised highly for their
application in EMC/microwave tests.
IP-045E delivers excellent electromagnetic absorption performance for vertical incidences starting at 30MHz to the microwave
range.
Additionally, our line up includes IP-100C and IP-150C that deliver
excellent electromagnetic absorption performance starting at low
frequency ranges. These are optimally suited for six-sided
anechoic chambers (for EN and ETSI compliance).
SHAPES AND DIMENSIONS
T
FEATURES
• Ultra-wideband electromagnetic absorber.
• Stable against acids, bases and water vapor, and offers long
service life.
• Uses materials that, when burned, emit gases that are relatively
harmless to humans.
• Fire retardant (NRL Classes 1, 2 and 3; UL-94HBF).
PRODUCT IDENTIFICATIONS
I
P - 100 C
(1) (2)
(3) (4)
600
0
60
Dimensions in mm
(1) TDK electromagnetic absorbers
(2) Base material code (P: Styrofoam)
(3) Length dimensional code (100: 100cm)
(4) Version code
STANDARD MATERIALS
Standard
weight
(kg)
IP-045E
45
3
IP-100C
100
6
IP-150C
150
8.5
Not including the mass of ferrite
Material
name
Length
(cm)
Applicable anechoic chambers
EMC and antenna evaluation etc.
EN and ETSI compliant
EN and ETSI compliant
TYPICAL ABSORPTION CHARACTERISTICS (VERTICAL INCIDENCE)
Material name
IP-045E
IP-100C
IP-150C
30MHz
14
17
20
50MHz
14
17
23
100MHz
14
18
30
500MHz
20
25
30
Unit: dB
1GHz
30
30
32
5GHz
40
40
40
18GHz
40
40
40
40GHz
40
40
40
• 200v/m Can be applied to EMS tests
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(13/18)
FOR ANECHOIC CHAMBERS USED IN HIGH-POWER TESTS
ICT MATERIAL
A pyramidal electromagnetic absorber with a corrugated structure
that consists of an inorganic base and utilizes the ohmic loss of
carbon. The corrugated structure is designed to radiate heat
efficiently during power irradiations of 1W/cm2 or greater.
ICT-015
A 15-cm long pyramidal electromagnetic absorber with a corrugated structure.
It delivers excellent electromagnetic absorption performance over
a wide band between 3 and 110GHz. Our line up includes the ICT30 deliver excellent electromagnetic absorption performance
starting at low frequency ranges and are available up to 45cm in
length.
These products are optimally suited for anechoic chambers and
small anechoic dark boxes used in high-power tests.
SHAPES AND DIMENSIONS
ICT-015
150
FEATURES
• Ultra-wideband electromagnetic absorber.
• Excellent heat radiation for heat generated during high-power
irradiation.
• Constructed of nonflammable materials to withstand the heat
generated during high-power irradiation.
• Lightweight and strong.
PRODUCT IDENTIFICATIONS
I
C T - 015
(1) (2) (3)
(4)
0
10
100
Dimensions in mm
(1) TDK electromagnetic absorbers
(2) Base material code (C: Inorganic material)
(3) For high power
(4) Length dimensional code (015: 15cm)
ICT-030
Standard dimensions
(mm)
100x100x150
100x100x300
Standard weight
(kg)
0.13
0.3
300
STANDARD MATERIALS
Material
name
ICT-015
ICT-030
Number of pyramids
2rowｘ2row=4
1
0
10
100
Dimensions in mm
TYPICAL ABSORPTION CHARACTERISTICS (VERTICAL INCIDENCE)
Material name
ICT-015
ICT-030
1GHz
—
25
3GHz
20
35
5GHz
25
35
10GHz
35
40
Unit: dB
30GHz
35
40
50GHz
35
40
110GHz
30
35
EXAMPLE OF RESULTS FROM A HIGH-POWER IRRADIATION TEST
(Heat generation characteristics)
Material name
ICT-015
ICT-030
1.5W/cm2
Tip: 125°C/Bottom: 85°C
Tip: 140°C/Bottom: 60°C
5W/cm2
—
Tip: 300°C
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
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THIN TYPE
IR MATERIAL (IR-A AND IR-B ABSORBERS)
A composite ferrite electromagnetic absorber made by mixing ferrite powder into synthetic rubber. This product is flexible because it
uses synthetic rubber as its base. By adjusting the ferrite composition and content, this product can be designed to respond to specific frequencies within the 0.7 to 8GHz microwave range.
IR-B024
An electromagnetic absorber designed for the 2.4GHz band.
It delivers excellent electromagnetic absorption performance and
is optimally suited for improving communication environments
including wireless LANs.
IR-A051
An electromagnetic absorber designed for the 5.1GHz band.
It delivers excellent electromagnetic absorption performance and
is optimally suited for improving communication environments
including wireless LANs.
FEATURES
• Excellent electromagnetic absorption performance.
• Flexible and easy to work with.
• Can be designed for various purposes.
REFLECTION ATTENUATION vs. FREQUENCY
CHARACTERISTICS
Reflection attenuation (dB)
30
PRODUCT IDENTIFICATIONS
I
R - B 024 300300  T
(1) (2)
(3) (4)
(5)
(6)
(1) TDK electromagnetic absorbers
(2) Base material code (R: Synthetic rubber)
(3) Ferrite material
(4) Center frequency code (024: 2.4GHz)
(5) Dimensions (mm)
(6) Thickness dimension (mm)
20
10
IR-B024
IR-B015
IR-A051
IR-B009
0
0.5
1
1.5
2
2.5
3
3.5
4
Frequency (GHz)
4.5
5
5.5
6
STANDARD MATERIALS AND TYPICAL ABSORBENT CHARACTERISTICS
Material name
Center frequency
(GHz)
20dB bandwidth
(GHz)
Standard thickness T
(mm)
IR-B009
IR-B015
IR-B024
IR-A051
0.9
1.5
2.4
5.1
0.08
0.15
0.35
1.10
8.4
6.3
5.7
5.1
300300mm
standard weight
(kg)
2.4
1.6
1.3
1.2
Application
Cellular phone
Prevents false radar images
Wireless LAN
Wireless LAN
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(15/18)
THIN TYPE
IR MATERIAL (IR-E ABSORBER)
A composite magnetic radio wave absorber made by mixing carbonyl iron powder into synthetic rubber. This product is flexible
because it uses synthetic rubber as its base.
By adjusting the carbonyl iron powder content, it can be designed
to respond to specific frequencies within the 10 to 26GHz microwave range.
IR-E240
An electromagnetic absorber designed for the 24GHz band.
It delivers excellent electromagnetic absorption performance and
is optimally suited for improving communication environments
including wireless access.
PRODUCT IDENTIFICATIONS
I
R - E 240 300300  T
(1) (2)
(3) (4)
(5)
(6)
(1) TDK electromagnetic absorbers
(2) Base material code (R: Synthetic rubber)
(3) Carbonyl iron
(4) Center frequency code (240: 24GHz)
(5) Dimensions (mm)
(6) Thickness dimension (mm)
20dB
bandwidth
(GHz)
Standard
thickness T
(mm)
IR-E110
IR-E140
IR-E240
11
14
24
1.5
1.5
2.0
1.4
1.3
1.0
20
10
300300mm
standard
weight
(g)
430
370
250
9.5
10
10.5
11
Frequency (GHz)
11.5
12
20
22
24
Frequency (GHz)
26
28
IR-E240
30
Reflection attenuation (dB)
Center
frequency
(GHz)
30
0
STANDARD MATERIALS AND TYPICAL ABSORBENT
CHARACTERISTICS
Material
name
REFLECTION ATTENUATION vs. FREQUENCY
CHARACTERISTICS
IR-E110
Reflection attenuation (dB)
FEATURES
• Excellent electromagnetic absorption performance.
• Flexible and easy to work with.
• Can be designed for various purposes.
20
10
0
18
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(16/18)
THIN TYPE
IR MATERIAL (IR-K ABSORBER)
A composite ferrite electromagnetic absorber made by mixing hexagonal ferrite powder into synthetic rubber. This product is flexible
because it uses synthetic rubber as its base.
By adjusting the hexagonal ferrite composition and content, this
product delivers wide-band electromagnetic absorption performance within the X to Ku band.
IR-K090
An electromagnetic absorber designed for the X band. It delivers
excellent electromagnetic absorption performance and is optimally suited for use on masts of water vessels and bridges to prevent false echos.
PRODUCT IDENTIFICATIONS
I
R - K 090 300300  T
(1) (2)
(3) (4)
(5)
(6)
(1) TDK electromagnetic absorbers
(2) Base material code (R: Synthetic rubber)
(3) Ferrite material
(4) Center frequency code (090: 9GHz)
(5) Dimensions (mm)
(6) Thickness dimension (mm)
20dB
bandwidth
(GHz)
Standard
thickness T
(mm)
IR-K090
IR-K150
IR-K160
9
15
16
2.5
5.0
3.0
2.5
2.0
1.8
30
20
10
9
10
11
12
13
14
Frequency (GHz)
15
16
17
18
9
10
11
12
13
14
Frequency (GHz)
15
16
17
18
IR-K150
300300mm
standard
weight
(g)
570
460
460
40
Reflection attenuation (dB)
Center
frequency
(GHz)
40
0
8
STANDARD MATERIALS AND TYPICAL ABSORBENT
CHARACTERISTICS
Material
name
REFLECTION ATTENUATION vs. FREQUENCY
CHARACTERISTICS
IR-K090
Reflection attenuation (dB)
FEATURES
• Excellent electromagnetic absorption performance over a wide
band.
• Flexible and easy to work with.
• Can be designed for various purposes.
30
20
10
0
8
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
(17/18)
THIN TYPE
ISF MATERIAL
A flat plate electromagnetic absorber consisting of a polyethylene
foam base and utilizing the ohmic loss of carbon.
This absorber delivers excellent electromagnetic absorption performance due to its structure, which consists of laminations of materials with different carbon contents. It is lightweight due to its
polyethylene foam base. It is highly weather resistant making it a
good choice for outdoor applications. This product can be
designed to respond to specific frequencies.
COMPOSITION EXAMPLE OF RADIO WAVE
ABSROBERS
Surface material
Radio wave absorber
material F
Radio wave absorber
material E
IS-FB75
An electromagnetic absorber designed for the 0.8 to 1.8GHz band
for cellular phones. It delivers excellent electromagnetic absorption
performance for vertical incidences.
ISFE27F5
An electromagnetic absorber designed for the 5.8GHz band.
It delivers excellent electromagnetic absorption performance even
at steep oblique incidences and is optimally suited for improving
ETC and DSRC communication environments. This product is
used widely on the ceilings of ETC toll gates and other facilities.
FEATURES
• Excellent electromagnetic absorption performance in the microwave range.
• Lightweight and easy to work with.
• Fire retardant (NRL Classes 1, 2 and 3; UL-94HBF).
• Provides excellent weather resistance and can be used outdoors. Please consult us for outdoor applications.
• Can be designed for various purposes.
Reflector
T
PRODUCT IDENTIFICATIONS
I
S F E27
(1) (2) (3) (4)
F5
(5)
(1) TDK electromagnetic absorbers
(2) Base material code (S: Polyethylene foam)
(3) Flat plate
(4) Material and thickness (E27: E material 27mm)
(5) Material and thickness (F5: F material 5mm)
STANDARD MATERIALS AND TYPICAL ABSORBENT CHARACTERISTICS
Material
name
IS-FB75
ISFA24
ISFE27F5
ISFA10
Center
frequency
(GHz)
0.8 to 1.9
2.4
5.8
76 to 77
Typical absorbent
characteristics
(dB)
15
15
20
15
Standard
thickness T
(mm)
80
24
32
10
Standard
weight
(kg/m2)
6.0
1.7
2.2
0.8
Applications
Cellular phone
Wireless LAN
ETC, DSRC
Millimeter wave radar
• ETC/DSRC electromagnetic absorbent panels using ISFE27F5 were co-developed by Sekisui
Jushi Corporation. Please note that these products are not sold alone.
• Upon request, we design products with frequency responses other than those stated above as
well as products that support oblique incidence.
• TDK reserves the right to determine the product name.
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm
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TRANSPARENT ELECTROMAGNETIC ABSORBER
ITB MATERIAL
An electromagnetic absorber using a transparent conductive film.
It is designed for /4 electromagnetic absorbers. The film uses a
PET (polyethylene terephthalate) base on which a film of ITO
(indium tin oxide) is formed. Its visible ray transmissivity exceeds
70%.
COMPOSITION EXAMPLES OF TRANSPARENT ELECTROMAGNETIC ABSORBER
Surface resin layer (PC)
ITB010, ITB390
ITB010 is a transparent conductive film designed to reflect radio
waves and ITB390 is a transparent conductive film designed to
absorb radio waves.
Absorption layer (ITB390)
Spacer layer (PC)
Reflection layer (ITB010)
The back resin layer (PC)
T
TRANSPARENT ELECTROMAGNETIC ABSORBENT PANEL
Designed for the 5.8GHz band, this /4 electromagnetic absorber
uses a PC (polycarbonate) plate as a spacer. It is highly transparent with a visible ray transmissivity of over 60%.
It is optimally suited for improving ETC and DSRC communication
environments.
TRANSPARENT ELECTROMAGNETIC ABSORBER
FEATURES
• Highly transparent with a visible ray transmissivity of over 60%.
• Designed for the 5.8GHz band.
• Will not shatter when subjected to shock.
• Can be designed for various purposes.
ELECTROMAGNETIC ABSORBER
EXAMPLE
ITB010&ITB39
PRODUCT IDENTIFICATIONS
I TB
(1) (2)
010
(3)
(1) TDK electromagnetic absorbers
(2) Base material code (TB: Transparent electric conductive layer)
(3) Planar resistance code (010: 10/square)
STANDARD MATERIALS
Film width
Material
Planar resistance
Applications
(cm)
name
(/square)
ITB010
10
100
ETC, DSRC
ITB390
390
100
ETC, DSRC
• Please note that transparent conductive films are not sold alone.
• Transparent electromagnetic absorbent panels were co-developed by
Sekisui Jushi Corporation. Upon request, we design products with frequency responses other than those stated above as well as products that
support oblique incidence.
This is an example of transparent electromagnetic absorbent
panels (ITB010 and ITB390) for ETC (Electronic Toll Collection)
installed between ETC lanes.
REFLECTION ATTENUATION vs. FREQUENCY
CHARACTERISTICS
40
Reflection attenuation (dB)
[T=9.6mm]
30
20
10
0
4.5
5
5.5
6
6.5
Frequency (GHz)
7
7.5
• All specifications are subject to change without notice.
002-02 / 20130924 / e9e_bdj_003.fm