C-band SIW Bandpass Filters on High-Permittivity Ceramic Substrates
Résumé
This paper introduces an effective way to build
efficient miniature SIW (Substrate Integrated Waveguide) Cband
filters, using high-permittivity ceramics. The objective is to
evaluate the feasibility of such filters in relation with commercial
electromagnetic simulators and a conventional fabrication
process. The solution proposed in this paper is based on a
ceramic substrate with a permittivity of 90, which allowed us to
work with shorter wavelengths. In comparison with a standard
alumina substrate (permittivity εr = 9.9), it makes it possible to
reduce the footprint up to nine times.