Reverberation
chambers
Controlled Electromagnetic Environments
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Reverberation chambers . . . . . . . . 03
Reverberation chamber
LUF 80MHz model 1716-0080 . . . . . 04
Reverberation chamber
LUF 100MHz model 1716-0100 . . . . .04
Reverberation chamber
LUF 200MHz model 1716-0200 . . . . .05
Reverberation chamber
LUF 400MHz model 1716-0400 . . . . .06
Reverberation chamber
LUF 1000MHz model 1716-1000 . . . .06
Controlled
Electromagnetic
Environments
Comtest Engineering supplies high performance
RF shielded rooms, reverberation and anechoic
chambers. The company is located in The
Netherlands and was founded in 1985.
We are a professional organization and recognized for our
quality and flexibility. Comtest high performance RF shielded
doors, mode-stirrer systems and microwave absorbers have been
internationally recognized as state of the art products.
Our skilled and experienced team is dedicated to satisfy your need
to control the electromagnetic environment!
Comtest Engineering b.v.
Industrieweg 12
2382 NV Zoeterwoude
The Netherlands
Phone: +31 (0)71 5417 531
E-mail: info@comtest.eu
2
ISO
9001
Reverberation chambers
A reverberation chamber is a specialized EMC test
chamber generating very high field strength using modest
amplifier power. The reflections between the RF shielded
walls are optimized to add up to maximum of as many
standing waves as practically possible. The chamber is
used for testing electrical immunity of test objects.
When performing electrical or electromagnetic testing
(EMC testing) the reverberation chamber is mode-stirred
or mode-tuned by means of a stirrer. A stirrer system is
a (large) structure of aluminum plates that is stepwise
turned during testing. The objective is to maximize the
standing wave pattern in the usable test volume. These
EMC tests are statistically evaluated and the “worst case”
data are used for the final evaluation of the test result.
The reverberation chamber creates a multi functional
EMC test environment for commercial, military, avionics
Options for reverberation chambers:
and automotive testing. Comtest reverberation chambers
comply with the IEC 61000-4-21, EUROCAE/ED-14,
• An additional shielded room can be installed to house MIL-STD 461, RTCA/DO-160 standards as well as various
high power RF amplifier systems (amplifier room) or to specific automotive standards. The reverberation room
house control and test
can be used for immunity and shielding effectiveness tests
• equipment (control room).
as well as for measuring total radiated power. Another
• Additional large sliding door for bigger EUT like application for the reverberation chamber is simulating
complex multipath environments like computer rooms
• Additional RF shielded swing door
and other electrically congested areas.
• Non-conductive test table
system racks or telecom equipment
• EUT grounding strip
The main advantage of testing in a reverberating chamber
• Various RF connectors and FO feed through and
over the traditional anechoic chamber tests is that less
power input is required to achieve the same field levels
• Non-conductive bracket with adapter for antenna’s
wave guides
which make expensive amplifiers obsolete.
Stirrer system
Comtest Engineering can supply the following
All Comtest stirrer systems are compatible with software
reverberation chamber solutions:
by Nexio, Teseq and Rohde & Schwarz. The stirrer
systems can be controlled using a standard office PC or
• Reverberation chamber model 1716-0080 (LUF 80Mhz)
lab top.
• Reverberation chamber model 1716-0100 (LUF 100Mhz)
• Reverberation chamber model 1716-0200 (LUF 200Mhz)
• Reverberation chamber model 1716-0400 (LUF 400Mhz)
• Reverberation chamber model 1716-1000 (LUF 1000MHz)
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Reverberation chamber
LUF 80MHz model 1716-0080
The reverberation chamber model 1716-0080 has a Lowest Usable Frequency (LUF) of 80 MHz. The usable test volume
depends on the size of the equipment under test (EUT) and will be determined upon customer request.
Features:
Applicable standards / test methods:
•
Lowest usable frequency 80MHz
•
IEC 61000-4-21
•
Usable test volume 5*4*3(h) mtr
•
MIL-STD 461-E&F
•
Shielding effectiveness according to EN 50147-1
•
RTCA/DO-160-G
(>80dB at 10kHz)
•
EUROCAE/ED-14F
•
Full compliance immunity test site for frequency
range of 80MHz to 18GHz as per IEC 61000-4-21
Typical specifications:
Dimensions:
12.75*10.80*6.83 (h) m
Usable test volume:
5.00*4.00*3.00 (h) m
Construction:
2mm hot galvanized shielding panels with a free standing structural steel support
Ventilation:
Honeycomb model 1791-3030 (300 x 300mm / 18GHz)
EUT Door:
RF shielded sliding door model 1756-3030 (3000*3000mm) incl. lift platform
Wall entry panel:
Model 1795-3030 (300x300mm) including RF connectors
EUT power line:
Filtered 230VAC / 32A / single phase model 4801-032
Lighting:
CDMT lights 150W model 1840-150
Frequency range:
From 80MHz up to 18GHz.
Floor:
Solid metal ground plane
Stirrer system
Space saving proprietary new oscillating stirring technology
Reverberation chamber
LUF 100MHz model 1716-0100
The reverberation chamber model 1716-0100 has a Lowest Usable Frequency (LUF) of 100MHz. The usable test
volume depends on the size of the equipment under test (EUT) and will be determined upon customer request.
Features:
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•
Lowest usable frequency 100MHz
•
Typical usable test volume 4.00*4.00*1.50 (h) m
•
Shielding effectiveness according to EN 50147-1 (>60dB at 10kHz)
•
Full compliance immunity test site for frequency range of 100MHz to 18GHz as per DO-160
Typical specifications:
Dimensions:
9.600*6.150*4.125 (h) m
Usable test volume:
4.00*4.00*1.50 (h) m
Construction:
2mm hot galvanized shielding panels with a free standing structural steel support
Ventilation:
Honeycomb model 1791-3030 (300 x 300mm / 18GHz)
Personnel Door:
RF shielded sliding door model 1756-3030 (3000*3000mm)
Wall entry panel:
Model 1795-3030 (300x300mm) including RF connectors
EUT power line:
Filtered 400VAC / 32A / three phase model 4803-032
Lighting:
CDMT lights 70W model 1840-070
Frequency range:
From 100MHz up to 18GHz
Floor:
Solid metal ground plane
Stirrer system
Z-fold duo-pole rotating vertical stirrer system
Reverberation chamber
LUF 200MHz model 1716-0200
The reverberation chamber model 1716-0200 has a Lowest Usable Frequency (LUF) of 200MHz. The usable test
volume depends on the size of the equipment under test (EUT) and will be determined upon customer request.
Features:
•
Lowest usable frequency 200MHz
•
Typical usable test volume 2.2*2.4*1.25(h) mtr or 2.0*1.5*2.3(h) mtr
•
Shielding effectiveness according to EN 50147-1 (>60dB at 10kHz)
•
Full compliance immunity test site for frequency range of 200MHz to 18GHz as per IEC 61000-4-21
Typical specifications:
Dimensions:
5.10*4.05*2.925 (h) m (Option 4.425 for 2.3m high volume)
Usable test volume:
2.00*1.50*1.25 (h) m (Option 2.3 with 4.425 high)
Construction:
2mm hot galvanized shielding panels with a structural steel support on top of roof panels
Ventilation:
Honeycomb model 1791-3030 (300 x 300mm / 18GHz)
Personnel Door:
RF shielded swing door model 1766-1521 (1500*2100mm)
Wall entry panel:
Model 1795-3030 (300x300mm) including RF connectors
EUT power line:
Filtered 230VAC / 32A / single phase model 4801-032
Lighting:
CDMT lights 70W model 1840-070
Frequency range:
From 200MHz up to 18GHz
Floor:
Solid metal ground plane
Stirrer system
Z-fold duo-pole rotating vertical stirrer system
5
Reverberation chamber
LUF 400MHz model 1716-0400
The reverberation chamber model 1716-0400 has a Lowest Usable Frequency (LUF) of 400MHz. The usable test
volume depends on the size of the equipment under test (EUT) and will be determined upon customer request.
Features:
•
Lowest usable frequency 400MHz
•
Typical usable test volume 0.80*0.80*0.80(h) m
•
Shielding effectiveness according to EN 50147-1 (>80dB at 10kHz)
•
Full compliance immunity test site for frequency range of 400MHz to 18GHz as per IEC 61000-4-21
Typical specifications:
Dimensions:
2.250*1.950*1.875 (h) m
Usable test volume:
0.80*0.80*0.80(h) m
Construction:
2mm high performance modular hot galvanized / aluminum shielding panels
Ventilation:
Honeycomb model 1791-3030 (300 x 300mm / 18GHz)
Personnel Door:
RF Shielded swing door model 1766-0909 (900*900mm)
Wall entry panel:
Model 1795-3030 (300x300mm) including RF connectors
EUT power line:
Filtered 230VAC / 16A / single phase model 4801-016
Lighting:
CDMT-light 70W model 1840-070
Frequency range:
From 400MHz up to 18GHz
Stirrer system
Z-fold duo-pole rotating vertical stirrer system
The reverberation chamber
LUF 1000MHz model 1716-1000
The reverberation chamber model 1716-1000 has a Lowest Usable Frequency (LUF) of 1000MHz. The usable test
volume depends on the size of the equipment under test (EUT) and will be determined upon customer request.
Features:
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•
Lowest usable frequency 1000MHz
•
Usable test volume 0.5x0.5x0.5(h) mtr
•
Shielding effectiveness according to EN 50147-1 (>60dB at 10kHz)
•
Full compliance immunity test site for frequency range of 1GHz to 18GHz as per IEC 61000-4-21 / DO-160
Typical specifications:
Dimensions:
0.8*0.9*1.5 (h) m
Usable test volume:
0.5*0.5*0.5 (h) m
Construction:
4mm High performance aluminum shielding technology
Ventilation:
Honeycomb model 1791-4515 (450x150mm)
Personnel Door:
RF shielded swing door model 1766-0506 Ma (500*600mm)
Wall entry panel:
Model 1795-1010 (100x100mm) including RF connectors
EUT power line:
Filtered 230VAC / 16A / single phase model 4801-016
Lighting:
CDMT light 70w model 1840-070
Frequency range:
1GHz up to 18GHz
Stirrer design:
asymmetric triple pedal stirrer system
Please also view our other literature or visit our website: www.comtest.eu
Hybrid &
Microwave
Absorbers
1
Anechoic
chambers
Controlled Electromagnetic Environments
Controlled Electromagnetic Environments
Controlled Electromagnetic Environments
RF Shielded
rooms
RF Shielded
doors
Reverberation,
Anechoic chamber
and RF shielded
room accessories
Controlled Electromagnetic Environments
Controlled Electromagnetic Environments
1
1
1
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www.comtest.eu
Comtest Engineering b.v.
Industrieweg 12
2382 NV Zoeterwoude
The Netherlands
Phone: +31 (0)71 5417 531
E-mail: info@comtest.eu
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