Title :
3.3 ∼ 3.6GHz 28dBm power amplifier for WiMAX CPE applications
Author :
Lee, Kwangchan ; Shin, Jinho ; Lee, Jongsoo
Author_Institution :
Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., Gwangju, South Korea
Abstract :
This paper presents the design and measurement results of 28dBm power amplifier from 3.3GHz to 3.6GHz for WiMAX CPE (Consumer Premises Equipment) applications. The power amplifier is designed with a 4 stage cascade structure to meet the high gain specification. Moreover, the loadline is designed with 3 section Chebychev LPF matching topology to have the broadband characteristics. All interstage matching have a 2 section matching topology. Especially, the 3rd interstage matching network has a combined HPF - LPF 2 section matching network. The power amplifier is manufactured with 2μm InGaP/GaAs HBT process. The performances of the power amplifier were verified by measuring power gain, efficiency, and linearity with respect to output power sweep.
Keywords :
III-V semiconductors; WiMax; gallium arsenide; gallium compounds; heterojunction bipolar transistors; indium compounds; microwave power amplifiers; Chebychev LPF matching topology; HBT process; InGaP-GaAs; WiMAX CPE applications; consumer premises equipment; frequency 3.3 GHz to 3.6 GHz; interstage matching; power amplifier; size 2 mum; Broadband communication; Impedance; Impedance matching; Power amplifiers; Power generation; Power measurement; WiMAX; CPE; EVM; OFDMA; Power Amplifier; WiMAX; broadband matching;
Conference_Titel :
Power Amplifiers for Wireless and Radio Applications (PAWR), 2011 IEEE Topical Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4244-8416-4
Electronic_ISBN :
978-1-4244-8415-7
DOI :
10.1109/PAWR.2011.5725380
