Title :
Cylindrical rectangular microstrip antennas using slot coupling
Author :
Tam, W.Y. ; Lai, A.K.Y. ; Luk, K.M.
Author_Institution :
Dept. of Electron. Eng., Hong Kong Polytech. Univ., Hung Hom, Hong Kong
Abstract :
Full wave spectral domain approach together with the reciprocity theorem are used to analyze a slot coupled cylindrical rectangular microstrip antenna. The slot is excited by either an open circuited stripline or an open circuited microstripline. The fields excited by the antenna patch surface current and the slot equivalent magnetic current for a multiple dielectric substrates coated cylinder are rigorously formulated using the spectral domain Green´s functions. Numerical results for the input impedance and far-field pattern are presented. It is found that the input impedance is significantly affected by the cylinder size
Keywords :
Green´s function methods; antenna radiation patterns; coatings; electric current; electric impedance; microstrip antennas; microstrip lines; spectral-domain analysis; strip lines; antenna patch surface current; cylinder size; cylindrical rectangular microstrip antennas; far-field pattern; full wave spectral domain method; input impedance; multiple dielectric substrates coated cylinder; numerical results; open circuited microstripline; open circuited stripline; reciprocity theorem; slot coupled microstrip antenna; slot coupling; slot equivalent magnetic current; spectral domain Green´s functions; Antenna theory; Coupling circuits; Dielectric substrates; Green´s function methods; Magnetic analysis; Magnetic domains; Microstrip antennas; Slot antennas; Stripline; Surface impedance;
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.1995.509629
