Resonance in a spherical-circular microstrip structure with an airgap

Author

Wong, Kin-Lu ; Chen, Hong-Twu

Author_Institution

Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan

Volume

41

Issue

8

fYear

1993

fDate

8/1/1993 12:00:00 AM

Firstpage

1466

Lastpage

1468

Abstract

The resonance problem of the spherical-circular microstrip structure with an airgap between the substrate layer and the ground conducting sphere is studied by using a rigorous Green´s function formulation in the spectral domain and Galerkin´s moment method calculation. Complex resonant frequencies are obtained in this study, which provide the resonant frequencies and half-power bandwidth of the structure. From the numerical results, it is found that with the increasing of the airgap thickness, the half-power bandwidth of the structure is considerably increased. This improves the low-bandwidth characteristics of microstrip structures. Details of the numerical results are presented and discussed

Keywords

Green´s function methods; microstrip components; resonance; waveguide theory; Galerkin´s moment method calculation; Green´s function formulation; airgap; airgap thickness; complex resonant frequencies; ground conducting sphere; half-power bandwidth; low-bandwidth characteristics; resonance problem; spectral domain; spherical-circular microstrip structure; substrate layer; Bandwidth; Geometry; Green´s function methods; Matrices; Microstrip antennas; Moment methods; Patch antennas; Permittivity; Resonance; Resonant frequency;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.241692

Filename

241692