Title :
A dual-band filter using coupled-feed with asymmetrical stepped-impedance resonator
Author :
Konpang, Jessada
Author_Institution :
Dept. of Electron. & Telecommun. Eng., Rajamangala Univ. of Technol. Krungthep, Bangkok, Thailand
Abstract :
In this paper, a dual-band filter using coupled-feed with asymmetrical stepped-impedance resonator is proposed to develop the microstrip open loop resonators dual-band filter. The dual-band filter is based upon the design of two filters independently; one of them meeting the desired performance at 900MHz and the other desired performance at 1800MHz. The two filters can be combined using the coupled feed lines. The measured insertion losses are better than 3.0 dB for the two channels. It is very useful for applications in mobile communication systems.
Keywords :
UHF filters; UHF resonators; microstrip filters; microstrip lines; microstrip resonators; mobile communication; asymmetrical stepped-impedance resonator; coupled feed lines; dual-band filter; frequency 1800 MHz; frequency 900 MHz; insertion losses; microstrip open loop resonators; mobile communication system; Band pass filters; Dual band; Filtering theory; Insertion loss; Microstrip filters; Microwave filters; Resonator filters; Asymmetrical stepped-impedance; coupled-feed; dual-band; filter;
Conference_Titel :
Digital Information and Communication Technology and it's Applications (DICTAP), 2012 Second International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4673-0733-8
DOI :
10.1109/DICTAP.2012.6215422
