A Novel Dual-Band Magneto-Electric Dipole End-Fire Antenna

This paper proposed a novel dual-band magnetoelectric dipole end-fire antenna. The proposed antenna is composed of a self-complementary bow-tie structure with a triangular patch and a triangular slot as electric dipole on both sides of the substrate, a co-excited quarter-loop that operates as magnetic dipole, a vertical ground plane, and a microstrip transition balun. The proposed antenna achieves a dual-band operation at 2.2~2.6GHz for WLAN and 1.15~1.25GHz for telemetry L-band, respectively, with the highest gain of approximately 10dBi and an average gain of 7dBi during the whole operating bandwidth with an excellent front to back ratio of 26.5dB. Meanwhile, the stable unidirectional radiation patterns and low back lobe are also obtained during the dual bands.