A New Surface Mount Filter with a Triple-Mode Ceramic Cavity
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We consider a novel surface mount ceramic filter for wireless communication systems. The high permittivity ceramic filling of the basic triple-mode waveguide cavity makes proposed bandpass filter physically small. Integrated microstrip to ceramic waveguide transitions provide effective connection of the filter into planar circuit. The theory is based on the singular integral equation method in conjunction with generalized scattering matrix technique. The principal feature of the simulation algorithm consists in utilization of weighted Gegenbauer polynomials as the basis functions for the Galerkin’s procedure. The design example is shown for L-band filter.
Abstract
We consider a novel surface mount ceramic filter for wireless communication systems. The high permittivity ceramic filling of the basic triple-mode waveguide cavity makes proposed bandpass filter physically small. Integrated microstrip to ceramic waveguide transitions provide effective connection of the filter into planar circuit. The theory is based on the singular integral equation method in conjunction with generalized scattering matrix technique. The principal feature of the simulation algorithm consists in utilization of weighted Gegenbauer polynomials as the basis functions for the Galerkin’s procedure. The design example is shown for L-band filter.