Design and Implementation of a Triple-Mode Planar Filter

• DOI: 10.1109/lmwc.2013.2253313
• Publication Date: 2013-03-29T18:01:38Z
• Authors: Xi-Cheng Zhu; Wei Hong; Ke Wu; Hong-Jun Tang; Zhang-Cheng Hao; Ji-Xin Chen; Peng Chu
• Keywords: Waveguide; Dual mode; Mode (computer interface); Center frequency

A novel planar triple-mode resonator is proposed and implemented by placing an additional metallic via at the center of a circular dual-mode substrate integrated waveguide (SIW) cavity resonator. The resonant frequency dominant mode in SIW increases remarkably become close to frequencies TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">110</sub> -similar mode. Three asymmetric bandpass filters utilizing this are designed fabricated. measured results good agreement with simulation results.