Title :
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
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;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552030
