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CDMA handset power amplifier with diode load modulator

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4 Author(s)
Seungwoo Kim ; Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol., Gyeongbuk, South Korea ; Kyungho Lee ; Zampardi, P.J. ; Kim, Bumman

A new monolithic PA for 836 MHz CDMA cellular phone is developed using a simple diode based load modulator at the output matching circuit. The modulation network allows power level dependent load impedances for better power-added efficiencies. Especially, the PAE at the lower output power range, less than 10 dBm where most of handset operation arises, is increased more than 80%.

Published in:

Microwave Symposium Digest, 2005 IEEE MTT-S International

Date of Conference:

12-17 June 2005