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A High Power Compact X-Band RF Front-End for Weather Radar Applications
in Proc. of 2020 IEEE International Radar Conference, April 28 - 30, 2020, Washington, USA, pp.778-781 (2020)

V.A. Volkov, D.M. Vavriv, V.V. Vinogradov, E.V. Bulakh, A.A. Kravtsov and V. Ksenofontov

The paper presents a high-power compact RF front-end for X-band weather radar applications. The front- end benefits from a novel high efficiency GaN SSPA with 900 W peak power, a low noise receiver, and a low noise fast-switching local oscillator. Circuits for accurate calibration of both the transmit and receive channels are provided. The front-end hardware is fitted into a standard 19?, 4U enclosure, enabling for a rather compact radar layout. Essential design solutions of the front-end are described, and results of the unit tests are presented.