0.35-mum SiGe BiCMOS variable-gain power amplifier for WiMAX transmitters

0.35-mum SiGe BiCMOS variable-gain power amplifier for WiMAX transmitters

A 0.35-m SiGe BiCMOS variable-gain power amplifier for WiMAX transmitters is presented. A voltage-controlled variable resistor is used to control the gain of the linear amplifier. An open-collector adaptive bias is utilized to obtain high linearity and efficiency. The measured power amplifier achiev...

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Veröffentlicht in:Microwave and optical technology letters 2007-11, Vol.49 (11), p.2750-2753
Hauptverfasser: Liao, Hsien-Yuan, Chen, Kuan-Yu, Deng, Joseph D-S, Chiou, Hwann-Kaeo
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container_end_page 2753
container_issue 11
container_start_page 2750
container_title Microwave and optical technology letters
container_volume 49
creator Liao, Hsien-Yuan
Chen, Kuan-Yu
Deng, Joseph D-S
Chiou, Hwann-Kaeo
description A 0.35-m SiGe BiCMOS variable-gain power amplifier for WiMAX transmitters is presented. A voltage-controlled variable resistor is used to control the gain of the linear amplifier. An open-collector adaptive bias is utilized to obtain high linearity and efficiency. The measured power amplifier achieves a power gain of 22.2 dB, an output power of 20.6 dBm, and a power-added efficiency of 24.4% with 10-dB tuning range of linear gain.
doi_str_mv 10.1002/mop.22851
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title 0.35-mum SiGe BiCMOS variable-gain power amplifier for WiMAX transmitters
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