In this paper, an active phased-array transmitter that can be used to generate 1-kW peak pulsed output is presented. It consists of 192-channel transmit modules and each transmit module with greater than 6 W of CW output power is connected to rigid tapered slot antenna in the frequency range 6–18 GHz. In transmit module, integrated multi-function corechip is designed in order to individually control both amplitude and phase of array antennas. Far-field radiation pattern of active phased-array transmitter was obtained using field-transformation method after carrying out near-field measurement in anechoic chamber. Electronic beam steering capability of active phase-array transmitter was demonstrated with a scan angle of ±20° in both azimuth and elevation angle. The overall system size is 840×480×630 mm3.
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