Title :
A Geometrically-Appropriate Cavity Model for a Spherical Inverted-F Antenna (SIFA)
Author :
Rolando, D.L. ; Huff, Gregory H.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX, USA
fDate :
5/1/2013 12:00:00 AM
Abstract :
A cavity model for a spherical inverted-F antenna (SIFA) is proposed using a custom curvilinear coordinate system. The coordinate transformation maps the spherical structure into an equivalent rectangular topology to which conventional cavity method procedures can be applied. The wave equation under this transformation is solved to predict the modal characteristics, input impedance, and radiation behavior of the antenna. Analytically-obtained results are compared to simulated models and the measured results from one fabricated model.
Keywords :
antenna radiation patterns; geometry; modal analysis; wave equations; SIFA; antenna radiation behavior; coordinate transformation map; custom curvilinear coordinate system; equivalent rectangular topology; geometrically-appropriate cavity model; input impedance; modal characteristics; spherical inverted-F antenna; spherical structure; wave equation; Antennas; Cavity resonators; Computational modeling; Geometry; Impedance; Mathematical model; Propagation; Cavity model; conformal antenna; patch antenna; spherical inverted-F antenna (SIFA);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2013.2246533
