Title :
A transmission line method to compute far-field radiation by arbitrarily directed Hertzian dipoles in a 1-D EBG structure
Author :
Wu, Xuan Hui ; Kishk, Ahmed A. ; Glisson, Allen W.
Author_Institution :
Dept. of Electr. Eng., Mississippi Univ., MS
Abstract :
In this paper, a transmission line method is developed to compute the far-field radiation of arbitrarily directed Hertzian dipoles that are embedded in a 1-D EBG of multilayer slabs. Based on the reciprocity theorem, the evaluation of the far-field is transformed into the evaluation of the field in the 1-D EBG structure due to an incident plane wave. The field in the EBG structure is derived by solving a cascaded transmission line circuit that is mapped from the multilayer structure. As two application examples, the arrangement of the 1-D EBG structure was optimized to maximize the directivity of a quarter wavelength thin wire monopole antenna and a DRA. The results were validated by full wave analysis of the entire physical structure by using IE3D
Keywords :
dielectric resonator antennas; dipole antennas; electromagnetic wave propagation; monopole antennas; photonic band gap; transmission line theory; 1D EBG structure; DRA; IE3D; arbitrarily directed Hertzian dipoles; cascaded transmission line circuit; far-field radiation; full wave analysis; incident plane wave; multilayer slabs; quarter wavelength thin wire monopole antenna directivity; reciprocity theorem; transmission line method; Antennas and propagation; Dielectrics; Dipole antennas; Embedded computing; Metamaterials; Periodic structures; Slabs; Surface impedance; Transmission line theory; Transmission lines;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711238
