Title :
A 5 GHz wide-range CMOS active phase shifter for wireless beamforming applications
Author :
Chu, Min ; Huard, Jeffrey M. ; Wong, Kim Y. ; Allstot, David J.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
A CMOS 5.2 GHz active phase shifter is presented. Based on a tunable all-pass filter, this implementation achieves a wide phase-shift range with low loss, and minimizes the number of on-chip passive elements. Fabricated in a subset of a 0.25 μm SiGe BiCMOS process, measurements of the active phase shifter show an insertion loss of 2 dB, an IIP3 of 1 dBm, and a phase shift range of 240°. Power consumption of the core circuitry is 36.3 mW from a single 2.5 V power supply.
Keywords :
BiCMOS analogue integrated circuits; CMOS analogue integrated circuits; MMIC phase shifters; germanium; radiocommunication; semiconductor materials; silicon; 0.25 mum; 2 dB; 2.5 V; 36.3 mW; 5.2 GHz; CMOS active phase shifter; SiGe; SiGe BiCMOS process; tunable all-pass filter; wireless beamforming applications; Array signal processing; BiCMOS integrated circuits; Germanium silicon alloys; Insertion loss; Loss measurement; Passive filters; Phase measurement; Phase shifters; Silicon germanium; Tunable circuits and devices;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615091
