Title :
Substrate integrated waveguide filter with mixed coupled modified trisections
Author :
Xu, Z.Q. ; Wang, Peng ; Liao, J.X. ; Shi, Y.
Author_Institution :
Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A novel multilayer substrate integrated waveguide (SIW) filter with an improved stopband using mixed coupled modified trisections (MCMTs) is presented. The proposed filter is composed of two cascade MCMTs embedded in LTCC substrate. Four transmission zeros (TZs) can be generated with only three resonators, where two TZs near the passband are utilised to achieve sharper skirt selectivity, and another two TZs for the upper wide stopand. A 10 GHz experimental filter has been designed, fabricated and measured to validate the proposed method.
Keywords :
band-pass filters; band-stop filters; resonator filters; substrate integrated waveguides; waveguide filters; LTCC substrate; SIW filter; cascade MCMT; experimental filter; mixed coupled modified trisections; multilayer substrate integrated waveguide filter; passband; resonators; skirt selectivity; stopband; transmission zeros; upper wide stopand;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.3826
