Magneto-electric dipole antenna with a constricted profile embodiment for smart Wi-Fi indoor environment

A compact, constricted magneto-electric dipole (MED) antenna design with enhanced performance is proposed. The design embodiment is split into discrete stages i.e. MED antenna configuration, ground reflector and metasurface radiator (MTS). The MED configuration achieves design compactness asserting annular loop E-dipole elements and metallic vias as H-dipole elements. The MED is excited by a planar metallic probe-fed connector, and operates from (5 to 6.2) GHz with a realized gain of (2.14–2.6) dBi. By incorporating a PEC reflector integrated with the MED configuration asserts operating range from (4.3 to 5.2) GHz with a realized gain of 7.6 dBi. Finally, loading an MTS, the proposed antenna operates from (4.18 to 6.15) GHz with 39% impedance bandwidth (IBW) and a realized gain of 8.2 dBi. It is found that the proposed antenna configuration exhibits a wideband response, a high radiation efficiency and a good flat-band gain. A fabricated antenna of the dimension $ 0.48\lambda _{0} \times 0.48 \lambda _{0} \times 0.17\lambda _{0} $ 0.48λ0×0.48λ0×0.17λ0 ( $ \lambda _{0} $ λ0 is the design test wavelength at 4.5 GHz) shows good agreement with the simulation and measured results, and is suitable for a smart Wi-Fi indoor environment.