Title :
Analysis of coplanar waveguide-fed circular patch antenna
Author :
Hsu, Chiang-Chuan ; Hsu, Powen ; Kiang, Jean-Fu
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A full-wave analysis of a circular patch antenna fed by an open-ended coplanar waveguide is presented. A set of integral equations are derived by using the Hankel transform and the two-dimensional Fourier transform. Method of moments is applied to solve these integral equations for the current distribution. The surface electric current on the circular patch is expanded by entire domain basis functions, and the surface magnetic currents on the open-ended slot and the coplanar waveguide are expanded by subsectional linear basis functions. Computed results for the reflection coefficient and the input impedance are obtained which compare favorably with measurements
Keywords :
Fourier transforms; Hankel transforms; antenna feeds; coplanar waveguides; current distribution; integral equations; method of moments; microstrip antennas; Hankel transform; circular patch antenna; coplanar waveguide-fed antenna; current distribution; entire domain basis functions; full-wave analysis; input impedance; integral equations; method of moments; open-ended coplanar waveguide; open-ended slot; subsectional linear basis functions; surface electric current; surface magnetic currents; two-dimensional Fourier transform; Coplanar waveguides; Current distribution; Fourier transforms; Integral equations; Magnetic domains; Moment methods; Patch antennas; Reflection; Surface impedance; Surface waves;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985383
