Title :
Coated ground plane edge diffractions and amplitude patterns of coated circular apertures
Author :
Aboserwal, Nafati A. ; Balanis, Constantine A. ; Birtcher, Craig R.
Author_Institution :
Sch. of Electr., Comput. & Energy Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
In this paper, the impact of finite coated ground plane edge diffractions on the amplitude patterns in the E and H planes of circular aperture antennas is investigated. A model based upon the uniform geometrical theory of diffraction for an impedance wedge and the geometrical optics method is presented to calculate the amplitude patterns of a circular aperture antenna mounted on square and circular finite ground planes that are coated with a lossy dielectric on one face (upper face). The model is validated by comparisons of simulated results, obtained by HFSS, with experimental data.
Keywords :
aperture antennas; geometrical optics; geometrical theory of diffraction; E planes; H planes; HFSS; amplitude patterns; circular aperture antennas; circular finite ground planes; coated circular apertures; finite coated ground plane edge diffractions; geometrical optics method; impedance wedge; lossy dielectric; square finite ground planes; uniform geometrical theory of diffraction; Antenna radiation patterns; Aperture antennas; Diffraction; Face; Impedance; Surface impedance;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905440
