Narrow-Band Microwave Filter Using High-Q Groove Gap Waveguide Resonators With Manufacturing Flexibility and No Sidewalls
Journal article, 2012

This paper presents a new type of narrow band filter with good electrical performance and manufacturing flexibility, based on the newly introduced groove gap waveguide technology. The designed third and fifth-order filters work at Ku band with 1% fractional bandwidth. These filter structures are manufactured with an allowable gap between two metal blocks, in such a way that there is no requirement for electrical contact and alignment between the blocks. This is a major manufacturing advantage compared to normal rectangular waveguide filters. The measured results of the manufactured filters show reasonably good agreement with the full-wave simulated results, without any tuning or adjustments.


coupling coefficient


Band-pass filters


Chebyshev response

external Q factor

gap waveguide


Ashraf Uz Zaman

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

Per-Simon Kildal

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

A. A. Kishk

University of Mississippi

IEEE Transactions on Components, Packaging and Manufacturing Technology

2156-3950 (ISSN)

Vol. 2 11 1882-1889 6238316

Areas of Advance

Information and Communication Technology

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering



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