Phase-noise reduction of voltage-controlled dielectric resonator oscillator for the X-band

In Bok Yom, Dong Hwan Shin, Keun Kwan Ryu, Seung Hyeub Oh, Moon Que Lee

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A different approach for phase-noise reduction of a HEMT VCDRO (voltage-controlled dielectric resonator oscillator) with coupled microstriplines to tune the oscillating frequency is investigated. Two HEMT VCDROs of 9.8 GHz are manufactured in the same configuration, except for the frequency-control circuit, in order to empirically demonstrate the phase-noise reduction. The experimental results show that the phase-noise reduction can be enhanced 8 dBc/Hz at 100-KHz offset frequency by using a frequency-controlled circuit with coupled microstriplines, as compared to the conventional VCDRO.

Original languageEnglish
Pages (from-to)515-518
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume47
Issue number6
DOIs
StatePublished - 20 Dec 2005

Keywords

  • Coupled lines
  • DRO
  • Phase noise
  • VCDRO

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