Title :
Characteristics of a circularly polarized conical beam spherical slot array antenna
Author :
Phongcharoenpanich, Chuwong ; Krairiksh, Monai ; Takada, Jun-ichi
Author_Institution :
Fac. of Eng., King Mongkut´´s Inst. of Technol., Bangkok, Thailand
Abstract :
This paper reports the characteristics of a spherical slot array antenna radiating a circularly polarized conical beam. The structure of the antenna is simple and suitable for mass production. This antenna is proposed for application to a land mobile subscriber unit located far from the equator and wireless LAN system. The system of integral equations is solved by the method of moments with the aid of the dyadic Green´s function. The impedance characteristics revealing the matching conditions are illustrated. The radiation characteristics such as radiation pattern and directivity are found to be conical beam radiation. The polarization characteristics giving rise to the circularly polarized radiation are investigated. The experimental results verified the theoretical ones
Keywords :
Green´s function methods; antenna radiation patterns; antenna theory; electromagnetic wave polarisation; impedance matching; integral equations; method of moments; mobile antennas; mobile satellite communication; satellite antennas; slot antenna arrays; wireless LAN; circularly polarized slot array antenna; conical beam array antenna; directivity; dyadic Green function; impedance characteristics; integral equations; land mobile subscriber unit; mass production suitability; matching conditions; method of moments; polarization characteristics; radiation characteristics; radiation pattern; spherical slot array antenna; wireless LAN system; Antenna arrays; Green´s function methods; Impedance; Integral equations; Mass production; Mobile antennas; Moment methods; Polarization; Slot antennas; Wireless LAN;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.925713
