New frequency plan and reconfigurable 6.6 / 7.128 GHz CMOS quadrature VCO for MB-OFDM UWB application

Tzuen Hsi Huang, Jia Lun Wang

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

8 Citations (Scopus)

Abstract

This work presents a new frequency plan and a reconfigurable 6.6 / 7.128 GHz CMOS quadrature voltage-controlled oscillator (QVCO) with integrating differential switchable inductors. Based on this frequency plan, a further simple synthesizer architecture is proposed with only two PLL's, two mixers, and one multiplexer. The QVCO is implemented with the mutual-coupling structure of two differential LC-tuned oscillator cores in a 0.18μm RF CMOS technology. The core stages draw a total of 10 mA from the supply voltage of 2.0 V. The measured phase noise at 6.6 GHz is -116 dBc/Hz at 1 MHz offset. By utilizing a switched capacitance array, a tuning range of 860 MHz is achievable with four sub-bands. The figure of merits (FOM) is about -178 dB. According to the new frequency plan, this QVCO can be served as one of the original signal sources for the MB-OFDM UWB frequency synthesizer.

Original languageEnglish
Title of host publication2007 IEEE MTT-S International Microwave Symposium Digest
Pages843-846
Number of pages4
DOIs
Publication statusPublished - 2007 Oct 2
Event2007 IEEE MTT-S International Microwave Symposium, IMS 2007 - Honolulu, HI, United States
Duration: 2007 Jun 32007 Jun 8

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Other

Other2007 IEEE MTT-S International Microwave Symposium, IMS 2007
CountryUnited States
CityHonolulu, HI
Period07-06-0307-06-08

All Science Journal Classification (ASJC) codes

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Huang, T. H., & Wang, J. L. (2007). New frequency plan and reconfigurable 6.6 / 7.128 GHz CMOS quadrature VCO for MB-OFDM UWB application. In 2007 IEEE MTT-S International Microwave Symposium Digest (pp. 843-846). [4263952] (IEEE MTT-S International Microwave Symposium Digest). https://doi.org/10.1109/MWSYM.2007.380091