文章基本信息

标题：A CMOS Frequency Synthesizer Block for MB-OFDM UWB Systems
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作者：Kim, Chang-Wan ; Choi, Sang-Sung ; Lee, Sang-Gug 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2007
卷号：29
期号：4
页码：437-444
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：A CMOS frequency synthesizer block for multi-band orthogonal frequency division multiplexing ultra-wideband systems is proposed. The proposed frequency synthesizer adopts a double-conversion architecture for simplicity and to mitigate spur suppression requirements for out-of-band interferers in 2.4 and 5 GHz bands. Moreover, the frequency synthesizer can consist of the fewest nonlinear components, such as divide-by-Ns and a mixer with the proposed frequency plan, leading to the generation of less spurs. To evaluate the feasibility of the proposed idea, the frequency synthesizer block is implemented in 0.18- CMOS technology. The measured sideband suppression ratio is about 32 dBc, and the phase noise is -105 dBc/Hz at an offset of 1 MHz. The fabricated chip consumes 17.6 mA from a 1.8 V supply, and the die-area including pads is .
关键词：Frequency synthesizer;UWB;ultra-wideband;mixer;divide-by N;MB-OFDM;CMOS;RFIC