Title :
Radiation Characteristics of Two-Slot Array Antenna on a Concentric Sectoral Cylindrical Resonator Excited by a Coupling Slot
Author :
Wounchoum, Phairote ; Phongcharoenpanich, Chuwong ; Worasawate, Denchai ; Krairiksh, Monai
Author_Institution :
Fac. of Eng. & Res. Center for Commun. & Inf. Technol., King Mongkut´´s Inst. of Technol. Ladkrabang, Bangkok
Abstract :
This paper presents the radiation characteristics of two-slot array antenna on a concentric sectoral cylindrical resonator excited by a coupling slot. The magnetic fields inside the sectoral cylindrical resonator for the first few modes are presented with sectoral angle of 60 degrees. It shows that the appropriate mode for a slot array antenna on a concentric sectoral cylindrical resonator is the TM110 mode. The radiation patterns of two-slot array antenna on a concentric sectoral cylindrical resonator for single sector are illustrated. The location of the coupling slot is considered to find the appropriate radiation pattern. The results provide useful information for the design of switched-beam array antenna on the concentric sectoral cylindrical resonators.
Keywords :
antenna radiation patterns; circular waveguides; dielectric resonator antennas; slot antenna arrays; TM110 mode; antenna radiation characteristics; concentric sectoral cylindrical resonator; coupling slot; magnetic fields; sectoral angle; switched-beam array antenna design; two-slot array antenna; Antenna arrays; Antenna radiation patterns; Electromagnetic coupling; Electromagnetic radiation; Magnetic fields; Microwave antenna arrays; Microwave technology; Phased arrays; Resonant frequency; Slot antennas; Slot antenna; concentric sectoral; mode; resonator;
Conference_Titel :
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0748-4
Electronic_ISBN :
978-1-4244-0749-1
DOI :
10.1109/APMC.2007.4555077
