Actived phased array radar with phase shifting in baseband

• Main Authors: Chanh, Yu-Cheng, 張育誠
• Other Authors: Wang, Yu-Jiu
• Format: Others
• Language: en_US
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/69644110879111973688

碩士 === 國立交通大學 === 電子工程學系 電子研究所 === 103 === In convention, the military radar is mechanical, it receives the signal by rotating the antenna. The motion costs long time. Since the speed of detecting is very important in military, the method is left gradually. Electronic radar is presented, the phased array is the popular one. It receives signal at unique direction with some gain by circuits. Without rotating, it is faster than the conventional radar. This paper will introduce a 35 GHz 65nm CMOS scalable four-element phased array. The phased array receiver utilizes a homodyne topology and locate the phase shifter in baseband. The system also uses direct-coupled standing wave oscillator array to simplify the LO routing. Single receiver chain has 51 dB power gain, a noise figure of 7.3 dB and an OIP3 of 8dBm.