The Xicom XTD-150Ka, XTD-175Ka, and XTD-250KaL series are compact self contained
antenna mount power amplifiers designed for low cost installation and long life.
Cooling and monitor & control systems are all self contained within the amplifier.
By combining the power supply and the RF components within the same amplifier case,
the need for external high voltage cables (required for split-box designs) is eliminated.
These highly compact units typically weigh only 48 pounds. TWTs are available delivering
120 Watts to 250 Watts in the 26.5 to 31.0 GHz band. Alternative frequency coverage is available.
No Shelter Required
Variable Gain Control
Designed for Uplink
This series of amplifiers provides several methods of tube protection. Due to Xicom’s
unique power supply design, less than 1 joule is stored in the power supply. A high frequency
resonant conversion power supply is used that accepts a wide range of prime power (100 to 260 VAC).
The unit also features power factor correction circuitry that minimizes line current distortion and
reduces the required volt-amps input.
These amplifiers have built-in waveguide switch control capability. This can be used in a 1:1
redundancy configuration. A single RS-485 cable can control two amplifiers and redundancy switch.
The amplifiers are available with multiple options including redundant and phase combined
system configurations, integral linearizers and harmonic filters.
Remote external controllers are available to operate the HPA from a user selected location.
28.0 - 30.0 GHz
Saturated Power (Typical)
175 W peak
Rated Power(P1dB) @ Amplifier Flange
Large Signal, minimum
Small Signal, minimum
Attenuator range (0.1 dB steps)
Maximum SSG Variation Over
Any Narrow Band
Any 1 GHz Band
0.80 dB maximum per 60 MHz
2.5 dB maximum dB
±0.04 dB/MHz maximum
Stability, 24 Hr maximum
± 0.25 dB
± 1.0 dB maximum over temperature range at any frequency
with two equal signals
at 50 W total output power
-19 dBc max
HARMONIC OUTPUT, maximum
(- 60 dBc with optional filter)
AM/PM CONVERSION, maximum
2.5 deg/dB at 6 dB below rated power
NOISE POWER, maximum
Transmit Band (27.5-29.5 GHz)
Receive Band (<21.2 GHz)
- 70 dBW/4 kHz
- 150 dBW/4 kHz
GROUP DELAY, maximum (over any 60 MHz Bandwidth)