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电信和无线电工程
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

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电信和无线电工程

DOI: 10.1615/TelecomRadEng.v68.i4.30
pages 299-317

Quasi-Optical Resonance Systems with Internal Inhomogeneities

I. K. Kuzmichev
O.Ya. Usikov Institute for Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12 Academician Proskura St., Kharkiv 61085, Ukraine

ABSTRACT

This paper is devoted to analyzing the efficiency of the fundamental and the first higher modes excitation in a hemispherical open resonator (OR) by various waveguide waves, by means of a functional used in the antenna engineering for determining the surface utilization coefficient. It has been proven that, with the geometry of the coupling element being chosen to satisfy the condition of the maximum efficiency of the lowest mode excitation, the excitation efficiency of the first higher modes is zero. The suggested solution is a hemispherical OR having a segment of a circular superdimensional waveguide situated in the middle of the OR's plane mirror. This resonator, even by the slot powering within the tuning range of about 10 GHz, maintains only one mode, which is crucial for the dielectrometry.


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