The XTD-175Ka from Comtech Xicom Technology is a Traveling Wave Tube (TWT) Power Amplifier that operates from 27.5 to 30.0 GHz. It delivers a saturated output power of 175 W (52.4 dBm) with a large signal gain of more than 70 dB. This amplifier has harmonics of -60 dBc, a noise power of -70 dBW/4 kHz (transmit band), and -150 dBW/4 kHz (receive band). It has a linearity of -7.5 dB and an AM/PM conversion of 2.5°/dB. This amplifier supports RS-232/422/485 M&C interfaces with an option for an Ethernet interface. It has built-in waveguide switch control capability which can be used in a 1:1 redundancy configuration.
The XTD-175Ka is 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. It is available in a benchtop enclosure that measures 50.80 x 26.04 x 24.13 cm and is ideal for antenna-mounted applications. This amplifier requires an AC supply from 90 to 264 V and consumes less than 800 W of power.
