Title :
Characteristic modes for planar structure feed design
Author :
Akkerman, Kathleen D. ; Kennedy, Timothy F. ; Long, Stuart A. ; Williams, Jeffery T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Houston, TX, USA
Abstract :
The frequency behavior of the first characteristic mode along a thin plate was presented. For this structure, the first mode retained the shape of its resonant current distribution below resonance but significant changes were seen above resonance. The rectangular planar monopole was analyzed, and tapering the monopole near the feed point was found to enhance the match with the feed. For each monopole width, a taper angle was identified to give the best match.
Keywords :
antenna feeds; antenna radiation patterns; current distribution; monopole antenna arrays; planar antenna arrays; characteristic modes; monopole width; planar structure feed design; rectangular planar monopole; resonant current distribution; taper angle; tapering; thin plate; Broadband antennas; Conductors; Eigenvalues and eigenfunctions; Equations; Feeds; Impedance; Independent component analysis; Modal analysis; Resonant frequency; Strips;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552057
