8 GHz Tunable Gunn Oscillator in WR-137 Waveguide

  • P. C. Rakshit Institute of Radio Physics and Electronics, Calcutta
  • G Ghosh Institute of Radio Physics and Electronics, Calcutta
  • P. K. Saha Institute of Radio Physics and Electronics, Calcutta
  • B. R. Nag Institute of Radio Physics and Electronics, Calcutta
DOI: https://doi.org/10.14429/dsj.33.6093
Keywords: Coaxial mode, Gunn diode, Waveguide

Abstract

The conventional technique of realising waveguide resonators for Gunn diode oscillators to operate at the band edge of the waveguide fails owing to the excitation of a coaxial mode resonance formed by the post and the side walls of the waveguide. One of the solutions to the problem is to mount the diode in a ridged waveguide resonator. This has been demonstrated by constructing an 8 GHz Gunn oscillator using a single ridge in WR-137 waveguide.The steps in designing the oscillator system are also presented.

Author Biographies

P. C. Rakshit, Institute of Radio Physics and Electronics, Calcutta
Institute of Radio Physics and Electronics, Calcutta-700 009
G Ghosh, Institute of Radio Physics and Electronics, Calcutta
Institute of Radio Physics and Electronics, Calcutta-700 009
P. K. Saha, Institute of Radio Physics and Electronics, Calcutta
Institute of Radio Physics and Electronics, Calcutta-700 009
B. R. Nag, Institute of Radio Physics and Electronics, Calcutta
Institute of Radio Physics and Electronics, Calcutta-700 009
Published
2014-01-31
How to Cite
Rakshit, P., Ghosh, G., Saha, P., & Nag, B. (2014). 8 GHz Tunable Gunn Oscillator in WR-137 Waveguide. Defence Science Journal, 33(1), 1-5. https://doi.org/10.14429/dsj.33.6093
Issue
Vol 33 No 1
Section
General Papers
Copyright (c) 2016 Defence Science Journal

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