Effect of the finite grounded substrate on the input impedance of the microstrip patch antenna

Author

Ogocu, G. ; Alatan, Lale ; Çivi, Özlem Aydin

Author_Institution

Electr. & Electron. Eng. Dept., Univ. of Gaziantep, Turkey

fYear

2005

fDate

3-8 July 2005

Firstpage

404

Abstract

The effects of the finite nature of the grounded dielectric slab on the input impedance of the microstrip patch antenna are investigated. The approximate closed-form spatial domain Green´s functions of the vector and scalar potentials derived recently for a horizontal electric dipole placed over a finite grounded dielectric slab are used in the method of moments formulation of the microstrip patch antenna. For different substrate sizes, the input impedance and the resonant frequency values are calculated and compared with the experimental and numerical results reported in the literature.

Keywords

Green´s function methods; antenna theory; approximation theory; dipole antennas; electric impedance; method of moments; microstrip antennas; substrates; closed-form spatial domain Green functions; finite grounded substrate; grounded dielectric slab; horizontal electric dipole; input impedance; method of moments; microstrip antenna; microstrip patch antenna; resonant frequency; Dielectric substrates; Geometry; Green´s function methods; Impedance; Microstrip antennas; Moment methods; Patch antennas; Resonant frequency; Slabs; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1552030

Filename

1552030