A Simple Dual-Wideband Magneto-Electric Dipole Directional Antenna

Abstract

Abstract-A simple dual-wideband magneto-electric (ME) dipole directional antenna is proposed in this paper. The antenna is composed of a ground plane, four Γ-shaped parasitic strips and an ME dipole fed by a Γ-shaped feed strip. Simulated results show that the ME dipole can only work in the higher frequency band from 1.7 to 2.7 GHz. By adding four Γ-shaped parasitic strips at each corner of the ground plane, the lower frequency band (0.788 ∼ 1.17 GHz) impedance matching is improved. The antenna is prototyped and measured. Measured results show that the antenna obtains −10 dB impedance bandwidths of 39% (0.788 ∼ 1.17 GHz) and 51.7% (1.62 ∼ 2.75 GHz) for the lower and higher bands. The achieved gains are 5.5 ± 0.5 dBi in the lower frequency band and 7 ± 1 dBi in the higher frequency band. The proposed antenna has good impedance and directional radiation characteristics in the whole frequency band. It can be widely used for 2G, 3G, LTE, WLAN, etc. communication systems.

Dual‐wideband dual‐polarised magnetoelectric dipole antenna for 4G/5G microcell base station

“…By adding a parasitic patch above the antenna, a U-shaped folded ME dipole antenna with a wide bandwidth of 72.7% (1.61-3.45 GHz) was proposed in [4]. To realise dual-band capability, ME dipole antennas with different structures have appeared, such as multilayer structure [5][6][7], parasitic patch [8,9], special E-dipole [10,11] etc. In [5], a dual-layer ME dipole antenna fed by a U-shaped feeding line was devised, the lower layer of which was used to implement the lower band and the upper layer of the upper band.…”