Title :
Near field solutions for chirostrip printed dipoles
Author :
Lumini, Feliciano ; da S.Lacava, J.C.
Author_Institution :
Div. of Syst. Eng., EMBRAER SA, Sao Jose dos Campinas, Brazil
Abstract :
Numerical solutions for near electromagnetic fields excited by short dipoles printed on grounded chiral slabs are presented. Using the full-wave spectral-domain analysis method developed for open chirostrip structures, expressions for electromagnetic field components are obtained. The effects of chirality on the near field distributions and on the dispersion curves of the surface wave modes are discussed. The results of this investigation confirm that all guided modes are hybrid and that bifurcated modes, currently observed in other chirowaveguide structures, are absent in grounded chiral slabs
Keywords :
antenna radiation patterns; chirowaveguides; dipole antennas; dispersion (wave); electromagnetic fields; microstrip antennas; spectral-domain analysis; bifurcated modes; chirality; chirostrip printed dipoles; chirowaveguide structures; dispersion curves; electromagnetic field components; full-wave spectral-domain analysis method; grounded chiral slabs; hybrid guided modes; near electromagnetic fields; near field distributions; near field solutions; numerical solutions; open chirostrip structures; short dipoles; surface wave modes; Dipole antennas; Dispersion; Electromagnetic fields; Microstrip antenna arrays; Microstrip antennas; Optical surface waves; Permeability; Permittivity; Slabs; Surface waves;
Conference_Titel :
Microwave and Optoelectronics Conference, 1995. Proceedings., 1995 SBMO/IEEE MTT-S International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2674-1
DOI :
10.1109/SBMOMO.1995.509630
