W-대역 소형 펄스 도플러 레이다용1 W급SSPA 개발.

In this study, a 1 W W-band solid-state power amplifier (SSPA) was developed for application in a W-band compact pulse Doppler radar. The SSPA up-converted the X-band signal to a W-band signal with a multiplier (×8) and then amplified the high output using an amplifier. To apply the W-band compact radar, which transmits and receives signals using a single antenna, the SSPA noise was reduced by controlling the drain voltage of the SSPA according to the pulse repetition frequencies. The average power obtained was in the range of 31.7∼31.8 dBm, and stable operation was possible for more than 50 s. [ABSTRACT FROM AUTHOR]