A Wideband Circularly Polarized Anisotropic Dielectric Resonator Antenna with Improved Gain

作者：Wen, Hua Dong; Tang, Min; Mao, Jun Fa

来源：10th International Conference on Microwave and Millimeter Wave Technology, ICMMT 2018, 2018-05-06 To 2018-05-09.

DOI：10.1109/ICMMT.2018.8563960

• Anisotropic dielectrics
• Anisotropic structure
• Axial ratio bandwidth
• Center frequency
• Circularly polarized
• Dielectric resonator antennas
• Impedance bandwidths
• Operating bands

A wideband and high gain circularly polarized rectangle dielectric resonator antenna (DRA) based on anisotropic structure is proposed. The circular polarization is realized by a cross slot on the ground plane and a spiral feed line with phase delay. The proposed antenna offers 3-dB axial ratio bandwidth of 20.29% (at the center frequency of 3.5 GHz) in the boresight direction and 10 dB impedance bandwidth of 31.43%. The average gain is over 8 dBi in the operating band. The proposed antenna is suitable for Wi-MAX applications.

• 出版日期2018
• 单位上海交通大学