Title :
A dual-feed dual-excitation mode circularly-polarized crossed-slot antenna
Author :
Moini, R. ; Samiee, M. ; Tavakoli, A. ; Rafi, G.Z.
Author_Institution :
Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
A circularly-polarized dual-feed crossed-slot antenna is presented. By switching to like and difference mode excitations, the entire space is spanned by the antenna radiation pattern. The antenna is analyzed using a time-domain MOM approach. This technique is capable of analyzing the antenna characteristics over a wide frequency band in one application of the numerical method. By using dual-feed and dual-excitation modes, circular-polarization, wide bandwidth, and large space coverage is realized. The antenna is useful for mobile communication systems and tracking applications. The theoretical and experimental results are in good agreement.
Keywords :
antenna feeds; antenna radiation patterns; electromagnetic wave propagation; land mobile radio; method of moments; slot antennas; time-domain analysis; tracking; antenna characteristics; antenna radiation pattern; circularly polarized crossed slot antenna; difference mode excitation; dual-feed dual-excitation mode; experimental results; integral equation; large space coverage; like mode excitation; mobile communication systems; numerical method; time-domain MOM; tracking applications; wide bandwidth; Antenna radiation patterns; Broadband antennas; Frequency; Mobile antennas; Mobile communication; Polarization; Slot antennas; Space technology; Time domain analysis; Voltage;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1996. AP-S. Digest
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-3216-4
DOI :
10.1109/APS.1996.549541
