DocumentCode :
2474369
Title :
Design and analysis of a low-power constant envelope phase shift modulator
Author :
Yang, Xiuge ; Lin, Jenshan ; O, K.K. ; Brewer, Joe
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL, USA
fYear :
2004
fDate :
19-22 Sept. 2004
Firstpage :
363
Lastpage :
366
Abstract :
Commonly used constant envelope modulation schemes for wireless communications, such as GMSK and MSK, usually take on complex architectures in IC implementations. This paper describes a constant envelope phase shift modulator based on the OQPSK and MSK modulation schemes, and discusses some circuit design issues and their impact on the performance of the modulator. The modulator produces a signal with discrete step phase shifts, has a relatively simple architecture, consumes low power, and is designed to be integrated with a nonlinear power amplifier in a direct conversion transmitter.
Keywords :
integrated circuit design; minimum shift keying; modulators; phase shift keying; phase shifters; power consumption; quadrature phase shift keying; radio transmitters; IC implementations; MSK modulation; OQPSK; circuit design; constant envelope phase shift modulator; direct conversion transmitter; envelope modulation; low-power phase shift modulator; performance; power consumption; Circuit synthesis; Delay; Nonlinear distortion; Phase modulation; Quadrature phase shift keying; Signal design; Summing circuits; Switches; Transmitters; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Radio and Wireless Conference, 2004 IEEE
Print_ISBN :
0-7803-8451-2
Type :
conf
DOI :
10.1109/RAWCON.2004.1389151
Filename :
1389151
Link To Document :
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