Abstract
A wideband aperture coupled rhomboid magneto-electric (ME) dipole for millimeter-wave applications is proposed in this article. The electric dipole is formed by four identical rhomboid patches, while the magnetic dipole is composed by four vertical metallic shorted vias. The use of the rhomboid patches flattens and enlarges the impedance matching bandwidth of the proposed radiating element and powers up the radiating element gain. The proposed configuration is fed using a substrate integrated waveguide (SIW). To proof the proposed idea, a comparison with a simple ME-dipole antenna has been done. The simulated impedance bandwidth with |S11| < −10 dB for the proposed SIW-fed wideband aperture coupled rhomboid ME-dipole is 25% (72–92 GHz). The simulated antenna peak gain is 11.1 dBi at 74 GHz and the 3-dB beamwidth is stable within the band of interest (E-band). The simulations have been performed with Ansys High-Frequency Simulation Software (HFSS). The proposed millimeter wave rhomboid ME dipole antenna can be a valid candidate for applications related to the new 5G technology, especially for 5G backhauling systems scenarios as it targets the E-Band (71–86 GHz).
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