Title :
On the linearity of CMOS multi-band phase shifters
Author :
Lu, C. ; Pham, A. ; Livezey, D.
Author_Institution :
Dept. of Elect. & Comp. Eng., California Univ., Davis, CA
Abstract :
This paper demonstrates the linearity results of two CMOS phase shifters. The linearity comparison is conducted between the design of and the new design, and the high-linearity design has been identified through the measurements. Both phase shifters can achieve a more than 180deg phase tuning range over 2.4 GHz to 6 GHz bands. The measured 1dB output power of the new design can be as high as 0.44 dBm. We first report the AM-PM performance for phase shifters, and the relative phase deviation around P1dB driving power level is less than 3deg. The phase shifter is potentially suitable for the application in transmitters
Keywords :
CMOS analogue integrated circuits; MMIC phase shifters; 2.4 to 6 GHz; CMOS analog integrated circuits; CMOS multiband phase shifters; linearity comparison; phased arrays; Linearity; Phase shifters; Phased arrays; Power amplifiers; Power generation; Power measurement; Radio frequency; Radiofrequency identification; Transceivers; Transmitters;
Conference_Titel :
Silicon Monolithic Integrated Circuits in RF Systems, 2006. Digest of Papers. 2006 Topical Meeting on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-9472-0
DOI :
10.1109/SMIC.2005.1587973
