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电信和无线电工程

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ISSN 打印: 0040-2508

ISSN 在线: 1943-6009

SJR: 0.185 SNIP: 0.268 CiteScore™:: 1.5 H-Index: 22

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OPEN RESONANT SYSTEM WITH A FOCUSING MIRROR COMPOSED OF SEVERAL REFLECTORS HAVING CYLINDRICAL SURFACE

卷 74, 册 7, 2015, pp. 585-599
DOI: 10.1615/TelecomRadEng.v74.i7.30
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摘要

To obtain a sufficient interaction length in diffraction radiation oscillators, operating on THz-frequencies, is an urgent problem of diffraction electronics. One of the ways to resolve this problem is the use of a composed focusing mirror in the open resonant system. The goal of this study is to investigate experimentally the properties of resonant modes in the open resonant system with a focusing mirror composed of several cylindrical reflectors having equal radii of curvature. For the case of H-polarization the field distributions and Q-factor of resonant modes at frequencies f=25÷38 GHz are determined using focusing mirror composed of two, three and four cylindrical reflectors. The use of a focusing mirror composed of 2 reflectors is more attractive for a diffraction radiation oscillator operating on the TEM00q-resonant mode. Using the focusing mirror composed of n ≥2 cylindrical reflectors, the best properties are obtained for TEM(n-1)0q-modes, when the resonant field nulls are near to the joint of reflectors. So, when n =2, the field distribution for the TEM10q-mode is the super-Gaussian.

对本文的引用
  1. Kovalov I.O., Miroshnichenko V.S., The features of diffraction radiation oscillator operating on the 1st Gaussian mode of the open resonant system, 2016 II International Young Scientists Forum on Applied Physics and Engineering (YSF), 2016. Crossref

  2. Kovalov Ievgen, Miroshnichenko Volodymyr, Excitation of super-Gaussian modes in an open resonator with a focusing mirror composed of paired cylindrical reflectors, 2017 IEEE International Young Scientists Forum on Applied Physics and Engineering (YSF), 2017. Crossref

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