A 900-MHz/1.8-GHz CMOS transmitter for dual-band applications

被引：28
|
作者：
Razavi, B [1 ]
机构：
[1] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA
来源：
IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1999年 / 34卷 / 05期
关键词：
Gaussian minimum shift keying (GMSK) modulators; radio-frequency (RF) CMOS circuits; single-sideband (SSB) mixers; wireless transceivers;
D O I：
10.1109/4.760365
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：
The design of a radio-frequency transmitter that can operate in two bands while employing a minimal number of external components entails many challenges at both the architecture and the circuit levels, This paper describes the design of a 900-MHz/1.8-GHz transmitter implemented in CMOS technology for dual-band applications. Configured as a two-step architecture, the circuit generates the first upconverted signal in quadrature form and subsequently performs single-sideband modulation to produce the output in two bands, Fabricated in a 0.6-mu m digital CMOS technology, the transmitter exhibits unwanted spurs 40 dB below the carrier while drawing 75 mW from a 3-V supply.
引用
收藏
页码：573 / 579
页数：7
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