Close coupled resonant aperture inserts for waveguide filtering applications

A two-layer frequency selective surface (FSS) is used as a very compact and lightweight transverse waveguide filter element. A narrow-hand transmission response is produced from two layers, which, otherwise, in isolation would exhibit a broadband response. Measured results are compared with theoreti...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2001-03, Vol.11 (3), p.112-114
Main Authors: Seager, R.D., Vardaxoglou, J.C.
Format: Article
Language:English
Subjects:
Apertures
Applied sciences
Band pass filters
Broadband
Circuit properties
Couplings
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Filtering
Filtration
Frequency selective surfaces
Inserts
Mathematical models
Microwaves
Miscellaneous
Optical and optoelectronic circuits
Passband
Resonance
Transmission line matrix methods
Transmission line measurements
Transmission line theory
Waveguide filters
Weight reduction
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Description
Summary:A two-layer frequency selective surface (FSS) is used as a very compact and lightweight transverse waveguide filter element. A narrow-hand transmission response is produced from two layers, which, otherwise, in isolation would exhibit a broadband response. Measured results are compared with theoretical data obtained from a Transmission Line Matrix (TLM) based modeling method. Reduction in the passband bandwidth of a factor of four has been achieved using the proposed structure.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/7260.915620