Title :
Wideband dual polarized dielectric resonator antennas at X-band
Author :
Chair, R. ; Kishk, Ahmed A. ; Lee, K.F.
Author_Institution :
Dept. of Electr. Eng., Univ. of Mississippi, University, MS, USA
Abstract :
A wideband dual polarized dielectric resonator antenna is designed. A two-step stair shaped DRA is excited through a cross-shaped slot by two orthogonal ports. Microstrip lines are terminated with a U-shaped tuning stub to optimize the matching. Both ports are able to give more than 20% bandwidth. To achieve high isolation, two orthogonal ports are placed in two different layers, with one port above the ground plane and the other port below the ground plane. Isolation with more than 30dB is achieved between the two ports.
Keywords :
antenna earths; antenna theory; broadband antennas; dielectric resonator antennas; electromagnetic wave polarisation; impedance matching; isolation technology; microstrip lines; microwave antennas; optimisation; tuning; U-shaped tuning stub; X-band antennas; cross-shaped slot; dielectric resonator antennas; dual polarized antennas; ground plane; isolation; matching optimization; microstrip lines; orthogonal ports; two-step stair shaped DRA; wideband antennas; Apertures; Bandwidth; Broadband antennas; Dielectric losses; Dielectric resonator antennas; Electromagnetic wave polarization; Frequency; Geometry; Microstrip; Patch antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552782
