A 0.18-μm CMOS low-spurious local signal generator for MB-QFDM UWB radio

Takashi Tokairin, Noriaki Matsuno, Keiichi Numata, Tadashi Maeda, Shinichi Tanaka

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

This paper presents a new single PLL and single SSB-mixer architecture for a local signal generator of the Mode-1 MB-OFDM UWB systems. Using a VCO running at 8976 MHz and a divide-by-2 circuit, it can provide a 4488-MHz carrier signal with low-spurious levels, which is required to meet the spectrum mask requirements being considered in Japan and Europe. A divide-by-8.5/17 circuit using double-edge triggered operation is introduced to obtain 3432- and 3960-MHz carriers from the same VCO in order to save die area. This circuit generates 1056- and 528-MHz signals, and the required signals can be obtained by mixing these with 4488 MHz signal. The core area of the local signal generator fabricated in a 0.18-μm CMOS technology is 0.67 mm2. The spurious levels for the 4488-MHz carrier are below -41 dBc.

本文言語English
ホスト出版物のタイトルProceedings of the 2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007
ページ215-218
ページ数4
DOI
出版ステータスPublished - 2007
外部発表はい
イベント2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007 - Honolulu, HI, United States
継続期間: 2007 6 32007 6 5

出版物シリーズ

名前Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
ISSN(印刷版)1529-2517

Conference

Conference2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007
国/地域United States
CityHonolulu, HI
Period07/6/307/6/5

ASJC Scopus subject areas

  • 工学(全般)

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