Title :
Impedance of a circular-disc printed-circuit antenna
Author :
Long, Stuart A. ; Shen, Liang C. ; Walton, Mark D. ; Allerding, Martin R.
Author_Institution :
University of Houston, Department of Electrical Engineering, Houston, USA
Abstract :
The driving-point impedance of a printed-circuit antenna consisting of a circular disc separated by a dielectric from a ground plane is investigated experimentally. The impedance is measured as a function of the operating frequency for various disc diameters, thicknesses and permittivities of the dielectric and feed point positions. In addition, a theoretical parallel RLC circuit model is proposed and compared with the experimental data.
Keywords :
dielectric-loaded antennas; electric impedance; equivalent circuits; microwave antennas; printed circuits; RLC circuit model; dielectric permittivity; disc diameter; disc thickness; driving point impedance; printed circuit antenna;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780462
