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Advanced Microwave
Technologies
DVANTECH
2.2.2 U
-C
P
ONVERTER
The Up-Converter converts the input L-Band carrier into a Ku-Band carrier. The 950 – 1450 MHz
L-Band input signals are fed at the input co-axial interface connector. A block up-converter using a
low phase noise RF oscillator, which is phase locked to the 10 MHz internal reference, translates
the 950 - 1450 MHz L-Band frequency-range to 14.000 - 14.500 GHz Ku-Band frequencies. A
band-pass filter selects the appropriate up-converter term, which in turn drives a Solid State Power
Amplifier (SSPA). Integral to this module there is a variable attenuation section used for gain
control of the whole SSPB unit and a variable attenuation section used for global temperature
compensation.
2.2.3 RF D
M
RIVER
ODULE
The RF Driver Module consists of a solid state power amplifier operating over the frequency
range of 14.0 - 14.5 GHz. The driver module is integrated on a heat sink and provides an
interface for Monitor and Control Board. This module has a DC board containing the bias,
control and protection circuitry. Other feature includes Summary Alarm Indication (failure report
of one or more GaAs devices).
2.2.4 RF H
P
IGH
OWER
The RF High Power Module consists of a 80 W solid state power amplifier operating over the
frequency range of 14.0 - 14.5 GHz. A DC board containing the bias, control and protection
circuitry is included in this module. The module is integrated on a heat sink and provides an
interface for Monitor and Control board.
2.2.5 W
A
AVEGUIDE
RM
The Waveguide Arm Assembly includes a harmonic filter, a three-port output circulator and
related power detectors (Forward and Reverse Power).
• The harmonic filter provides a minimum of 65 dB attenuation of all harmonic products other
than the fundamental signal.
• The output circulator provides one reflected power port coupled via a detector to the Monitor
and Control board for reverse power protection. The output port of the waveguide arm
assembly has a minimum 20 dB output return loss and the output flange is WR 75 (flat).
• One extra sample port, the RF Output Monitor Port, calibrated in coupling ratio versus
frequency, permits the independent monitoring of SSPA output power levels via a 'N' type
connector on the side panel, by using external spectrum analyzer or portable power meter.
A
SSEMBLY
M
ODULE
A
SSEMBLY
SSPBM-K100-BTE
Page 10
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