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KU-BAND SOLID STATE
POWER AMPLIFIER
Ku-Band 20W SSPA
Telemetry interface. An output isolator is
incorporated to aid in testing/handling.
This SSPA (Solid State Power Amplifier)
is a wideband Power Amplifier operating
in the Ku-Band frequency ranges. The
SSPA consists of a Gallium Nitride (GaN)
output stage and a Channel Amplifier-style
driver assembly which are integrated into
a single hermetic package. The amplifier
incorporates a full time ALC loop, with 21
steps of output power control.
The SSPA is available stand-alone
or integrated with an Electronic
Power Conditioner (EPC) on a common
baseplate.
STAND-ALONE SSPA
The SSPA is constructed using thin
film amplifier, attenuator, and control
circuits. The thin film modules are
enclosed in an aluminum laser-sealed
hermetic housing. The housing has
two 2.92 mm RF connectors and two
15 pin Micro-D connectors for DC and
KEY FEATURES
> Ku-Band Design (11.450 GHz to
12.250 GHz)
SPACE GRADE SSPA SPECIFICATIONS
Parameter
Frequency Range
Output Power Level
Gain Compression
Blanking Range
Output Power Control Range
RF Connectors
DC Voltage
DC Power
Temperature Range
Design Life
Mass
Units
GHz
dBM
dB
dB
dB
V
W
deg
g
Specification
11.450 to 12.250
44 dBm Sat (Typ)
<5
> 50 dB
20
2.92 mm
+20
+9V
-5V
80 Nom., 130 Max.
-20°C to +65°C
> 15 Years GEO
240 SSPA, 1250 with EPC
> 20W Saturated RF Output Power
> 17 dB Gain
> Greater than 20% efficiency
> Blanking Range: 50 dB minimum
> 20 power steps in 1 dB increments
> ALC operation
> Pulse Command Operation
> DC Power: < 95 Watts typically
SPACE GRADE SSPA CONTROL FUNCTIONS
> Weight: < 1250 grams with EPC
Item
Command Functions
ON
OFF
Power Step Up
Power Step Down
Blanking Enable
Blanking Disable
Telemetry Functions
ON/OFF Status
Blanking Enable/Disable Status
Input Bus Current
Power Step Status
ALC Lock
> Flight-proven design
Requirement
Positive Pulse
Positive Pulse
Positive Pulse
Positive Pulse
Positive Pulse
Positive Pulse
Digital (Bi-Level)
Digital (Bi-Level)
Analog (0-5 V)
Analog (0-5 V)
Digital (Bi-Level)
TYPICAL PERFORMANCE CURVES
OUTLINE DRAWING
SSPA ASSEMBLY
OUTLINE DRAWING
SSPA + EPC ASSEMBLY
Ku-Band 20W SSPA
© 2020 L3Harris Technologies, Inc. | 06/2020
This document consists of general capabilities information that is not defined as controlled technical data under
ITAR Part 120.10 or EAR Part 772.
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