A Ka-band T/R Front-end for Phased Array Radar
In this paper, a Ka-band transmitter/receiver (T/R) front-end for a phased-array radar is proposed. The transceiver includes a receiver channel and a transmitter channel. A function link shared with the receiver channel and the transmitter channel is comprised of a 5-bit phase shifter and a variable gain amplifying circuit including an attenuator and a low noise amplifier. Connection to either the final power amplifier on transmitter or the LNA on receiver is accomplished by using two single-pole double-throw switches (SPDTs). Experimental results of the frontend verify the validity of the design. A noise figure of 4.9 to 5.6dB, a receiver gain of 24.4 to 29.4dB and a output power from 0.74W to 1W are obtained within a frequency range from 34.5GHz to 35.5GHZ. The digital phase shift provides 10.2° root-mean square(RMS) phase shift error at 35GHz.
Li Guiping Xu Jun Luo Shendu Wang Maoyan
School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, C School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu, C
国际会议
成都
英文
1001-1004
2010-05-08（万方平台首次上网日期，不代表论文的发表时间）