Title :
A modified microstrip circular patch resonator filter
Author :
Tan, Boon Tiong ; Chew, Siou Teck ; Leong, Mook Seng ; Ooi, Ban Leong
Author_Institution :
DSO Nat. Labs., Singapore, Singapore
fDate :
7/1/2002 12:00:00 AM
Abstract :
Circular holes are etched off a microstrip disk resonator. This results in a size reduction of 30%. By offsetting the positions of some of these holes, a degenerate orthogonal mode is excited, resulting in a split-mode bandpass filter. This filter can be considered as a lattice-type structure. A filter with a bandwidth of 8% centered at 2.0 GHz was designed. The measured insertion loss is 0.6 dB.
Keywords :
UHF filters; band-pass filters; lattice filters; microstrip filters; resonator filters; 0.6 dB; 2.0 GHz; circular holes; degenerate orthogonal mode; filter bandwidth; fundamental resonant frequency; hole position offsetting; insertion loss; lattice-type structure; microstrip circular patch resonator filter; microstrip disk resonator; offset etched holes; split-mode bandpass filter; Band pass filters; Bandwidth; Etching; Loss measurement; Magnetic separation; Microstrip filters; Microstrip resonators; Packaging; Resonant frequency; Resonator filters;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2002.801135
