✦ LIBER ✦

On design of linear RF power amplifier for CDMA signals

✍ Scribed by Qiang Wu; Martina Testa; Robert Larkin

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 160 KB
Volume: 8
Category: Article
ISSN: 1096-4290
DOI: 10.1002/(sici)1099-047x(199807)8:4<283::aid-mmce2>3.0.co;2-h

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✦ Synopsis

In this paper, we analyze the nonlinear effect of an RF power amplifier on CDMA signals and then derive the direct relation between the power transistor's traditional ( ) nonlinearity parameter, the third order intermodulation coefficient IP , and an estimate 3 [ ] of the out-of-band emission levels for CDMA signals which is used in IS-95 1 for the control of the amplifier's nonlinearity. This result will be useful to system and component engineers in design of RF power amplifiers for CDMA wireless systems.

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