Title :
Analysis of a circumferential slot antenna on a sectoral cylindrical cavity excited by a probe using method of moments
Author :
Pasri, Nitikam ; Phongcharoenpanich, Chuwong ; Krairiksh, Monai
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
An antenna for the base station of a mobile communication system is generally designed to have omnidirectional pattern to cover the service area in a cell site. A typical antenna is a microstrip array (such as circular array) which suffers from feeder loss. The slot array antenna is of interest due to its high efficiency. This paper presents the analysis of the input impedance of a sectoral cylindrical cavity-backed slot antenna fed by a probe. The method of moments plays a vital part in determining the impedance characteristics. The numerical results of the input impedance are illustrated and analyzed.
Keywords :
antenna radiation patterns; cellular radio; electric impedance; method of moments; probes; slot antenna arrays; base station; cell site; circumferential slot antenna; input impedance; method of moments; mobile communication system; omnidirectional pattern; probe; sectoral cylindrical cavity; slot array antenna; Antenna feeds; Base stations; Impedance; Microstrip antenna arrays; Microstrip antennas; Mobile antennas; Mobile communication; Moment methods; Probes; Slot antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016407
