A novel class of substrate integrated waveguide (SIW) filters based on perforations of the dielectric substrate is presented in this paper. The air-hole perforations allow the local modification of the characteristic impedance of the SIW as well as its cutoff frequency, thus permitting the easy design of filtering structures. Four-pole filters operating at 3.6 GHz, based on conventional and half-mode SIW, have been designed, experimentally validated, and discussed. The proposed approach provides high flexibility, low sensitivity to fabrication inaccuracy, and simple design rules.
A New Class of SIW Filters Based on Periodically Perforated Dielectric Substrate
Silvestri, L;Massoni, E;Bozzi, M;Perregrini, L;Tomassoni, C;
2016-01-01
Abstract
A novel class of substrate integrated waveguide (SIW) filters based on perforations of the dielectric substrate is presented in this paper. The air-hole perforations allow the local modification of the characteristic impedance of the SIW as well as its cutoff frequency, thus permitting the easy design of filtering structures. Four-pole filters operating at 3.6 GHz, based on conventional and half-mode SIW, have been designed, experimentally validated, and discussed. The proposed approach provides high flexibility, low sensitivity to fabrication inaccuracy, and simple design rules.File in questo prodotto:
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