Title :
Small-size comb-line microstrip narrow BPF
Author_Institution :
Antenna Giken Co. Ltd., Ohmiya, Japan
Abstract :
The author reports on a small-size comb-line microstrip BPE (bandpass filter). The new microstrip BPF was developed by using a high dielectric constant ( in r=92) substrate, and shield-lines were used between coupled resonators to get a smaller coupling coefficient. The three-stage bandpass filter was designed and demonstrated at 1.2 GHz. The measured value of the coupling coefficient of a coupled microstrip resonator is shown. The coupling coefficient is composed with and without the use of a shield line.<>
Keywords :
band-pass filters; microstrip components; microwave filters; passive filters; resonators; 1.2 GHz; UHF; bandpass filter; coupled resonators; coupling coefficient; microstrip; narrowband type; shield-lines; small-size comb-line; three-stage; Band pass filters; Capacitors; Coaxial components; Dielectric constant; Dielectric materials; Dielectric substrates; High-K gate dielectrics; Microstrip antennas; Microstrip resonators; Resonant frequency;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.188138
