This paper presents the basic structure for the implementation of compact half-mode SIW filters with transmission zeros. The proposed structure consists of two inline half-mode SIW cavities, coupled by an iris window, with a microstrip stub connected to the open boundary in the middle of a coupling iris. The open-circuit microstrip stub allows introducing an additional pole in the filter as well as a transmission zero, at the frequency where the length of the stub is quarter wavelength. A modal analysis of the structure has been performed, and a filter based on this structure, with three poles and a transmission zero, has been implemented. Simulation and measurement of the filter are reported.

Half-mode SIW Filters with Resonant Couplings Implementing Transmission Zeros

MacChiarella, Giuseppe;
2018-01-01

Abstract

This paper presents the basic structure for the implementation of compact half-mode SIW filters with transmission zeros. The proposed structure consists of two inline half-mode SIW cavities, coupled by an iris window, with a microstrip stub connected to the open boundary in the middle of a coupling iris. The open-circuit microstrip stub allows introducing an additional pole in the filter as well as a transmission zero, at the frequency where the length of the stub is quarter wavelength. A modal analysis of the structure has been performed, and a filter based on this structure, with three poles and a transmission zero, has been implemented. Simulation and measurement of the filter are reported.
2018
2018 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM - IMS
9781538650677
Extracted-pole filter; filter; half-mode SIW; resonant cavity; substrate integrated waveguide (SIW); Radiation; Condensed Matter Physics; Electrical and Electronic Engineering
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1064246
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