Title :
Performance improvement of broad-beam quadratic reflector antenna
Author :
Thaivirot, Vanvisa ; Wongsan, Rangsan
Author_Institution :
Sch. of Telecommun. Eng., Suranaree Univ. of Technol., Nakhon Ratchasima
Abstract :
This paper aims performance improvement of quadratic-shaped reflector antenna by using backscattering technique to achieve efficient coverage of service areas. Physical theory of diffraction (PTD) is applied to calculate the radiation characteristics of proposed reflector antenna. The optimized feed distance is calculated from the aperture efficiency and has investigated the influence of the feed position on the HPBW, coverage area, and gain performance. The quadratic reflector antenna prototype is designed and developed to confirm the validity of this approach. The maximum gain and HPBW was measured in satisfactory agreement with the numerical predictions provided by the PTD.
Keywords :
reflector antennas; HPBW; backscattering technique; coverage area; diffraction physical theory; gain performance; quadratic-shaped reflector antenna; Antenna measurements; Antenna theory; Apertures; Backscatter; Feeds; Gain measurement; Performance gain; Physical theory of diffraction; Prototypes; Reflector antennas; broad-beam antenna; reflector antenna;
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.2008.4600432
