New tuning method for 94 GHz waveguide voltage controlled oscillator

Dong Sik Ko, Sang Jin Lee, Tae Jong Baek, Seok Gyu Choi, Min Han, Hyun Chang Park, Jin Koo Rhee, Joo Ho Jung, Young Wook Park

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We propose a simple, yet highly effective tuning method to increase the bandwidth of a waveguide voltage controlled oscillator (VCO) by applying controlled mechanical pressures to the packaged Gunn diode mounted in the waveguide cavity resonator. When we applied this method to a varactor-tuned, second-harmonic 94 GHz VCO, the bandwidth was doubled to 1 GHz with an output power over 14.8 dBm, which is suitable for frequency-modulated continuous-wave radar sensor applications.

Original languageEnglish
Article number5710005
Pages (from-to)154-156
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume21
Issue number3
DOIs
StatePublished - Mar 2011

Keywords

  • 94 GHz
  • Bandwidth
  • cavity resonator
  • Gunn diode
  • tuning
  • voltage controlled oscillator (VCO)
  • waveguide

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