A Quadrature Voltage Controlled Oscillator with 9 Selective Bands for UWB Communication

Chi-Yang Chang, Hui I. Wu, Christina Jou

Research output: Contribution to conferencePaper

Abstract

A 9 bands quadrature voltage-controlled oscillator (QVCO) for UWB communciation operating from 2 to 10 GHz is presented. The architecture consists of a wideband quadrature voltage-controlled oscillator (QVCO), 2-stage dividers, switch buffer and only one quadrature single-sideband (SSB) mixer. Fabricated in 0.18-mu m CMOS technology, this work achieves QVCO's measured phase noise less than -98 dBc/Hz at 1 MHz offset, and the simulated output powers of twelve bands have better than 35 dB sideband rejection while consuming 58.7mW of the core circuit and 48.7mW of the buffer from a 1.8-V supply. The simulated switching time for hopping frequency is about 1ns.
Original languageEnglish
Pages 487-490
Number of pages4
DOIs
StatePublished - 2007
EventAsia-Pacific Microwave Conference, APMC 2007 - Bangkok, Thailand
Duration: 11 Dec 200714 Dec 2007

Conference

ConferenceAsia-Pacific Microwave Conference, APMC 2007
CountryThailand
CityBangkok
Period11/12/0714/12/07

Keywords

  • DESIGN
  • SYSTEM
  • FREQUENCY-SYNTHESIZER

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    Chang, C-Y., Wu, H. I., & Jou, C. (2007). A Quadrature Voltage Controlled Oscillator with 9 Selective Bands for UWB Communication. 487-490. Paper presented at Asia-Pacific Microwave Conference, APMC 2007, Bangkok, Thailand. https://doi.org/10.1109/APMC.2007.4554648