Title :
An Improved Dual-Mode Microstrip Ring Resonator Filter with Simple Geometry
Author :
Karacaoglu, U. ; Robertson, I.D. ; Guglielmi, M.
Author_Institution :
Communications Research Group, Dept. of Electronic and Electrical Eng., King´´s College London, Strand, London, UK, WC2R 2LS. TEL: +44 71 873 2523, FAX: +44 71 836 4781
Abstract :
An improved dual-mode microstrip ring resonator bandpass filter is presented. The new technique has a very simple geometry which leads to lower insertion loss, and makes the design less sensitive to fabrication tolerances and easier for accurate computer simulations. It allows the implementation of two transmission poles and two transmission zeros by using only one ring resonator. The measured results show excellent performance with 300 MHz 3dB bandwidth centred at 5.4 GHz and only 1dB insertion loss.
Keywords :
Band pass filters; Computational geometry; Computer simulation; Fabrication; Filtering theory; Insertion loss; Microstrip filters; Microstrip resonators; Optical ring resonators; Resonator filters;
Conference_Titel :
Microwave Conference, 1994. 24th European
Conference_Location :
Cannes, France
DOI :
10.1109/EUMA.1994.337254
