Open AccessNarrow-Band Microwave Filter Using High-Q Groove Gap Waveguide Resonators With Manufacturing Flexibility and No Sidewalls
Author(s) -
Ashraf Uz Zaman,
Per-Simon Kildal,
Ahmed A. Kishk
Publication year - 2012
Publication title -
ieee transactions on components, packaging and manufacturing technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.496
H-Index - 49
eISSN - 2156-3985
pISSN - 2156-3950
DOI - 10.1109/tcpmt.2012.2202905
Subject(s) - components, circuits, devices and systems , engineered materials, dielectrics and plasmas
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.