Title :
A four-aperture antenna with flare plates radiating omnidirectional beam
Author :
Rattanachote, Itthiphol ; Phongcharoenpanich, Chuwong ; Kosulvit, Sompol
Author_Institution :
Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok
Abstract :
This paper presents a four-aperture antenna with flare plates radiating omnidirectional beam for wireless local area network system with point-to-multipoint applications. The antenna simulation is carried out by using CST Microwave Studio program. The prototype antenna was fabricated to operate at 2.45 GHz. The impedance bandwidth (1.5:1 VSWR) is 93.06% (2.26-4.54 GHz). The half-power beamwidth is 40 degree in E-plane. The maximum gain is about 4 dBi from the measurement. The azimuth ripple is less than 3 dB. The cross polarization greater than 20 dB has been obtained.
Keywords :
UHF antennas; antenna radiation patterns; aperture antennas; directive antennas; microwave antenna arrays; polarisation; CST Microwave Studio program; cross polarization; flare plate omnidirectional beam radiation; four-aperture antenna; frequency 2.45 GHz; point-to-multipoint applications; wireless local area network system; Antenna measurements; Aperture antennas; Azimuth; Bandwidth; Dipole antennas; Helical antennas; Microstrip antennas; Microwave antennas; Prototypes; Wireless LAN;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2008. ECTI-CON 2008. 5th International Conference on
Conference_Location :
Krabi
Print_ISBN :
978-1-4244-2101-5
Electronic_ISBN :
978-1-4244-2102-2
DOI :
10.1109/ECTICON.2008.4600435
