A Microwave Bandpass Filter on Dielectric Layers with Metal Grids

A bandpass filter of new design comprising dielectric layers with surface metal grids is developed and studied. Dielectric layers act as half-wave resonators, while metal grids act as mirrors with preset reflectivity and ensure optimum coupling between adjacent resonators and between the boundary re...

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Bibliographic Details
Published in:Technical physics letters 2018-05, Vol.44 (5), p.408-411
Main Authors: Belyaev, B. A., Tyurnev, V. V., Voloshin, A. S., Galeev, R. G.
Format: Article
Language:English
Subjects:
Bandpass filters
Bandwidths
Classical and Continuum Physics
Dielectrics
Microwave antennas
Physics
Physics and Astronomy
Resonators
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Summary:A bandpass filter of new design comprising dielectric layers with surface metal grids is developed and studied. Dielectric layers act as half-wave resonators, while metal grids act as mirrors with preset reflectivity and ensure optimum coupling between adjacent resonators and between the boundary resonators and free space. A test prototype of the third-order filter with a central bandpass frequency of ~12 GHz and relative bandwidth ~17% showed good agreement of theory and experiment. The proposed design can be used in making panels radio-transparent within a preset bandwidth for covering microwave antennas.
ISSN:1063-7850
1090-6533
DOI:10.1134/S1063785018050152