Title :
A variable-offset phase detector for phased-array applications
Author :
Charles, Cameron T. ; Allstot, David J.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA
Abstract :
A phase feedback architecture is proposed which allows the phase of each path in a multiple antenna system to be set quickly and accurately. The feedback action of the proposed system will adjust the phase to compensate for errors caused by changes in operating conditions. The central component of the proposed architecture is a variable-offset phase detector. An architecture for this block is presented, which uses a digital input to achieve programmable phase offsets from 0deg to 180deg. The circuit has been simulated in 0.18 mum CMOS technology, and its operation has been demonstrated at frequencies up to 3 GHz with a power consumption of 0.95 mW
Keywords :
CMOS integrated circuits; antenna phased arrays; error compensation; feedback; low-power electronics; phase detectors; 0.18 micron; 0.95 mW; CMOS technology; errors compensation; multiple antenna system; phase feedback architecture; phased-array applications; programmable phase offsets; variable-offset phase detector; Circuits; Communication system control; Detectors; Feedback loop; Frequency; Phase detection; Phase shifters; Phased arrays; Transmitters; Voltage control;
Conference_Titel :
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Conference_Location :
Island of Kos
Print_ISBN :
0-7803-9389-9
DOI :
10.1109/ISCAS.2006.1693363
