An Analysis of Embedding Impedance for Q-Band Waveguide Gunn Oscillator With Resonance Post

The oscillation frequency tuning range of waveguide Gunn oscillator and its stability depend sensitively on the dimensions of the resonator. Therefore the embedding impedances with the various dimensions of the resonator for Q-band (33~50 GHz) Gunn oscillator are calculated by using HFSS (High Frequ...

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Bibliographic Details
Main Authors: Hyungjoo Kim, Seogtae Han, Taiseong Kim, Kwangdong Kim, Changhoon Lee, Moonhee Chung, Yonggi Kim
Format: Article
Language:English
Published: Korean Space Science Society (KSSS) 2001-11-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2001/v18n2/OJOOBS_2001_v18n2_119.pdf
Description
Summary:The oscillation frequency tuning range of waveguide Gunn oscillator and its stability depend sensitively on the dimensions of the resonator. Therefore the embedding impedances with the various dimensions of the resonator for Q-band (33~50 GHz) Gunn oscillator are calculated by using HFSS (High Frequency Structure Simulator). In this paper the comparisons between theoretical results of embedding impedances as a function of frequency and that of experimental results are described. And the oscillation frequency range could be predicted by using the theoretical evaluation methods which were proposed in this paper. It shows that post size has an effect on the frequency tuning characteristics of Gunn oscillator.
ISSN:2093-5587
2093-1409