A Dual-Mode Quadrature-Fed Wideband Circularly Polarized Dielectric Resonator Antenna

作者：Li Bin^*; Hao Cheng Xiang; Sheng Xin Qing

来源：IEEE Antennas and Wireless Propagation Letters, 2009, 8: 1036-1038.

DOI：10.1109/LAWP.2009.2030700

• Dielectric resonator antenna (DRA)
• wideband
• circularly polarized (CP)
• quadrature-fed

In this letter, a rectangular dielectric resonator antenna (DRA) structure fed by two vertical strips with quadrature in phase is studied. Both the fundamental TE(111) and the higher order TE(113) modes can be simultaneously excited to generate a wideband circular polarization. The measured 10-dB impedance bandwidth is 32.8% from 2.7 to 3.76 GHz, under which the axial ratio is less than 4 dB. The radiation pattern and antenna gain are also studied.

• 出版日期2009
• 单位北京理工大学