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Broadband high-efficiency monolithic InGaP/GaAs HBT power amplifiers for wireless applications

✍ Scribed by Herbert Jäger; Andrei Grebennikov; Eugene Heaney; Robert Weigel

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
529 KB
Volume
13
Category
Article
ISSN
1096-4290

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✦ Synopsis

In this article, a broadband approach to high-efficiency power amplifier performance, based on the parallel-circuit Class E mode, is discussed. Results for a practical implementation of multi-band and multi-mode handset power amplifiers are shown. Measurements demonstrate the feasibility of the concept for highly efficient operation of DCS1800, PCS1900, CDMA2000, and WCDMA. PAE is greater than 50% at 30 dBm output power in the DCS1800 and PCS1900 bands, as well as better than 38% at 27 dBm output power and an ACLR of ؊37 dBc is achieved for WCDMA operation.

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