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A Polar Transmitter With CMOS Programmable Hysteretic-Controlled Hybrid Switching Supply Modulator for Multistandard Applications SCIE SCOPUS

Title
A Polar Transmitter With CMOS Programmable Hysteretic-Controlled Hybrid Switching Supply Modulator for Multistandard Applications
Authors
Choi, JKim, DKang, DKim, B
Date Issued
2009-07
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGI
Abstract
This paper presents the realization of a linear polar transmitter supporting multistandard applications. The harmonic-tuned class-AB biased (class-AB/F) power amplifier (PA) with the novel envelope shaping method linearly amplifies the input signal with high efficiency. The hybrid switching supply modulator with programmable hysteretic comparator enables the multimode operation whatever the envelope signal characteristics such as the peak-to-average power ratio and the bandwidth are. The designed polar transmitter is fabricated with CMOS 0.13-mu m technology and InGaP/GaAs 2-mu m HBT process for the supply modulator and the PA, respectively. For the IEEE 802.16e m-WiMax signal, it shows a power-added efficiency (PAE), an average output power (Pout), and a gain of 34.3%, 23.9 dBm, and 27.9 dB, respectively. Without any predistortion techniques, it satisfies the overall spectrum emission mask specifications. The relative constellation error and the error vector magnitude for the m-WiMax signal are -30.5 dB and 2.98%, respectively. For a WCDMA signal, it presents a PAE, a Pout, and a gain of 46%, 29 dBm, and 27.8 dB, respectively. For the EDGE signal, it delivers a PAE of 45.3% at a Pout of 27.8 dBm with a gain of 29.4 dB. There is about a 7% improvement of the overall PAE for EDGE through the optimum multimode operation.
Keywords
CMOS analog integrated circuits (ICs); dc-dc power conversion; multimode; power amplifiers (PAs); transmitters; wireless communication; POWER-AMPLIFIER DESIGN; HIGH-EFFICIENCY
URI
https://oasis.postech.ac.kr/handle/2014.oak/27811
DOI
10.1109/TMTT.2009.2021880
ISSN
0018-9480
Article Type
Article
Citation
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, vol. 57, no. 7, page. 1675 - 1686, 2009-07
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김범만KIM, BUM MAN
Dept of Electrical Enginrg
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