Affiliation:
1. Department of Electrical Engineering National Central University Taoyuan Taiwan
Abstract
AbstractIn this letter, a novel three‐fourths‐mode substrate‐integrated waveguide (TFMSIW) single‐band bandpass filter (BPF), and a TFMSIW tri‐band BPF are proposed for the first time. The resonant modes of a TFMSIW cavity are analyzed first to show their unload quality factors and both electric and magnetic field distributions. Based on the characteristics of the TFMSIW cavities, a single‐band BPF prototype is introduced. Moreover, with multiple coupling windows for respective passbands, a further application to tri‐band BPFs is studied. Consequently, two cases of tri‐band BPF are designed, fabricated, and tested for demonstration.
Subject
Electrical and Electronic Engineering,Condensed Matter Physics,Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials