DocumentCode :
1550983
Title :
Aperture-coupled microstrip open-loop resonators and their applications to the design of novel microstrip bandpass filters
Author :
Hong, Jia-Sheng ; Lancaster, Michael J.
Author_Institution :
Sch. of Electron. & Electr. Eng., Birmingham Univ., UK
Volume :
47
Issue :
9
fYear :
1999
fDate :
9/1/1999 12:00:00 AM
Firstpage :
1848
Lastpage :
1855
Abstract :
The rapid growth of wireless and mobile communications has stimulated the development of multilayer filter technology. In this paper, two types of aperture-coupled microstrip open-loop resonators in a multilayer structure are proposed and investigated for the applications to the design of a new class of compact microstrip bandpass filters. The new filter configuration consists of two arrays of microstrip open-loop resonators that ran be coupled through the apertures on the common ground plane. Depending on the arrangement of the apertures, different filtering characteristics can easily be realized. Electromagnetic modeling of the aperture couplings is presented. Three experimental filters of this type with Chebyshev, elliptic function, and linear phase response respectively, are described together with theoretical and experimental results. The filter asymmetric responses associated with frequency-dependent couplings are investigated
Keywords :
Chebyshev filters; arrays; band-pass filters; electromagnetic coupling; elliptic filters; frequency response; linear phase filters; microstrip filters; microstrip resonators; Chebyshev filter; aperture couplings; aperture-coupled microstrip open-loop resonators; common ground plane; electromagnetic modeling; elliptic function filter; filter asymmetric response; filter configuration; filtering characteristics; four-pole filters; frequency-dependent couplings; linear phase response filter; microstrip bandpass filters; microstrip open-loop resonator arrays; multilayer filter technology; Apertures; Band pass filters; Filter bank; Microstrip antenna arrays; Microstrip filters; Microstrip resonators; Mobile communication; Nonhomogeneous media; Resonator filters; Wireless communication;
fLanguage :
English
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9480
Type :
jour
DOI :
10.1109/22.788522
Filename :
788522
Link To Document :
بازگشت