Mechanical tuning of substrate integrated waveguide filters
PublisherIEEE Microwave Theory and Techniques Society
Rights accessOpen Access
This paper presents a novel approach for tuning substrate integrated waveguide resonators, realized by placing an additional metallized via-hole on the waveguide cavity. The approach presented here can be applied as a trimming technique, as well as to develop filter designs with tunable center frequencies and tunable bandwidths. Three different filters are designed and implemented, demonstrating excellent trimming, 10% tuning of the center frequency, and 100% tuning of the bandwidth, respectively.
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CitationMira, F., Mateu, J., Collado, J. Mechanical tuning of substrate integrated waveguide filters. "IEEE transactions on microwave theory and techniques", 01 Desembre 2015, vol. 63, núm. 12, p. 3939-3946.