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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationProceedings of the 2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007
Pages215-218
Number of pages4
DOIs
Publication statusPublished - 2007 Oct 2
Event2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007 - Honolulu, HI, United States
Duration: 2007 Jun 32007 Jun 5

Publication series

NameDigest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
ISSN (Print)1529-2517

Conference

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

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Keywords

  • CMOS
  • Frequency synthesizer
  • Local signal generator
  • MB-OFDM
  • UWB

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Tokairin, T., Matsuno, N., Numata, K., Maeda, T., & Tanaka, S. (2007). A 0.18-μm CMOS low-spurious local signal generator for MB-QFDM UWB radio. In Proceedings of the 2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007 (pp. 215-218). [4266416] (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). https://doi.org/10.1109/RFIC.2007.380868