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电信和无线电工程
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

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.v52.i12.50
pages 20-25

Properties of a Quasi-Optical Resonator with Local Coupling Elements. I. Phenomenological Model

B. M. Bulgakov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085, Ukraine
V. V. Glamazdin
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura Str., 61085 Kharkiv, Ukraine
M. P. Natarov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkov 61085, Ukraine
V. N. Skresanov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura Str., 61085 Kharkiv, Ukraine

ABSTRACT

Devices used widely to connect open resonators to hollow waveguides are local coupling elements with wide beams; in this case energy transmitted through a coupling element is radiated into free space and does not participate in generating resonance oscillations in the open resonator [2]. Sometimes this radiation is called a "nonresonant background." Approximate theoretical estimates of the energy of such radiation are given in [2-4], while experimental measurements are described in [5]. In some papers concerned with coupling of open resonators to rectangular waveguides through a small aperture in the diaphragm or through the open end of the waveguide (e.g., see [6, 7]), it is assumed that the "nonresonant" background is negligibly small. However, direct measurements [8, 9] show that this background can be of the same order of magnitude as the natural losses in the waveguide.


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