Variable-gain up-converter with current reuse for WCDMA wireless transmitters

被引：2

作者：

Carrara, F ^{[1
]}

Palmisano, G ^{[1
]}

机构：

[1] Univ Catania, Fac Ingn, DIEES, I-95125 Catania, Italy

来源：

2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS | 2005年

关键词：

D O I：

10.1109/ISCAS.2005.1465320

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：

In this paper a variable-gain up-conversion mixer based on a novel variable-transconductance input stage is presented. The proposed topology allows dc current reuse and reduces the overall transmitter power consumption in Wideband Code-Division Multiple Access applications. Temperature compensation and decibel-linear characteristic are achieved by means of a control circuit providing a lower than 1 dB gain error over a 46-dB dynamic range. A 3-dBm output compression point, 13-dB noise figure, and -45-dB adjacent-channel leakage power ratio are obtained under maximum gain conditions.

引用

页码：3247 / 3250

页数：4

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