Compact planar magneto‐electric dipole‐like circularly polarized antenna

Abstract

Abstract A novel circularly polarized (CP) substrate integrated magneto‐electric dipole (MED) antenna has been designed for appropriate wireless communication. The antenna comprises two printed radiating arc‐shaped patches and a feeding strip on top, two rows of embedded metallic vias, and a ground plane. A coax probe is used to excite the patches and via rows simultaneously with the help of a printed feeding strip. Finally, the antenna design has been prototyped and its performance experimentally was verified in terms of impedance bandwidth, axial‐ratio (AR), gain, efficiency, and radiation patterns. The measured impedance bandwidth (under −10 dB) and AR bandwidth (under 3 dB) are 6.15–7.01 (13%) GHz and 6.24–6.40 (2.53%) GHz respectively. Typically, the measured gain value within 3‐dB AR bandwidth at 6.3 GHz is 4.5 dBic with average measured in‐band antenna efficiency of 85.2%. Moreover, the proposed antenna shows an acceptable agreement with predicted counterparts, including unidirectional radiation patterns.