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A multi-function resonator based on an asymmetric tri-post rectangular waveguide section

Published online by Cambridge University Press:  22 July 2020

Lyudmila P. Mospan Open the ORCID record for Lyudmila P. Mospan [Opens in a new window]  and
Sergiy O. Steshenko
Lyudmila P. Mospan*
Affiliation:
Computational Electromagnetics Lab., O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine Department of Ukrainian and Russian as foreign languages, O.M. Beketov National University of Urban Economy in Kharkiv, Kharkiv, Ukraine
Sergiy O. Steshenko
Affiliation:
Computational Electromagnetics Lab., O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine
*
Author for correspondence: Lyudmila P. Mospan; Email: [email protected]
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Abstract

A novel waveguide resonator is proposed in the paper. The resonator is composed of three rectangular partial-height posts inserted along a rectangular waveguide cross-section. A pair of lateral posts is mounted symmetrically whereas the third antipodal post is centered. The resonator enables bandreject, singlet-type, and pseudoelliptic responses. The operating regimes are achieved by a manipulation with the pair of lateral posts, namely by changing their heights or their locations in a waveguide cross-section. A filtering function is realized as the third mode is exploited as the resonant one. Measurement data are presented for WR90 waveguide. An explanation of the resonant phenomena in post-based sections in terms of eigen regimes and interacting oscillations is proposed.

Keywords

Bandpass filterspoles and zerosresonator filter
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 12 , Special Issue 10: EuMCE 2019 Special Issue (Part II) , December 2020 , pp. 1005 - 1011
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Copyright
Copyright © Cambridge University Press and the European Microwave Association 2020

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