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Article: Design and characterization of a multipurpose PCS class A amplifier. (personal communications services)
- Article from:
- Microwave Journal
- Article date:
- April 1, 1997
- Author:
CopyrightCOPYRIGHT 1997 Horizon House Publications, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The rapid expansion of personal communications service (PCS) base stations and services has resulted in an increased demand for linear power amplifiers in the 1.93 to 1.99 GHz band. Two of the most widely used PCS signal formats, code-division multiple access (CDMA) and North American Digital Cellular (NADC) time-division multiple access (TDMA), require that transmitter power amplifiers operate within strictly defined limits for signal distortion and spectral regrowth. Typically, single-channel base station PCS amplifiers produce 2 to 50 W of average output power. Multichannel amplifiers must be capable of yet higher levels to avoid interference resulting from the ...