A &UDELTA& USIGMAdigitized RF transmitter

被引：8

作者：

Choi, Jinsung ^{[1
]}

Yim, Jounghyun ^{[1
]}

Yang, Jinho ^{[1
]}

Kim, Jingook ^{[2
]}

Cha, Jeonghyun ^{[1
]}

Kim, Bumman ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol, Dept Elect Engn, Gyeongbuk, South Korea

[2] Handong Global Univ, Dept Informat Technol, Gyeongbuk, South Korea

来源：

2007 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-6 | 2007年

关键词：

D O I：

10.1109/MWSYM.2007.380259

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper demonstrates a new transmitter architecture digitizing an envelope to control a power amplifier. The transmitter employs a low-pass Delta Sigma-modulator for constant envelope modulation and noise shaping. It enables the use of highly efficient switching amplifier with high linearity. For demonstration, the overall transmitter is implemented and tested with code-division multiple access (CDMA) IS-95A signal. The transmitter delivered the expected efficiency and linearity. The performances are maintained across the broad output power range. The results clearly show the controllability of highly efficient switching power amplifier in digital domain with simple envelope modulation technique.

引用

页码：81 / +

页数：2

共 10 条

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[2]

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[3]

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[4]

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[7]

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[8]

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[9]

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[10]

Woo YY, 2003, IEEE MTT S INT MICR, P1703, DOI 10.1109/MWSYM.2003.1210467

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