A Dual Band Shark Fin Integrated Vehicle Antenna For 5G and Wi-Max Applications

Automobiles connectivity to each other and with other infrastructure (e.g. power grid, base stations etc.) are becoming more popular. The advancement in autonomous vehicle and Internet of Things (IoTs) gives the challenge to incorporate high efficiency antennas into the vehicle for wireless communication. However, the transmitters and receivers need to be low-profile, high bandwidth, high gain, and cost effective to enable vehicle telematics. In this paper, a dual band low profile shark fin integrated multi-input multi-output (MIMO) antenna is proposed for 5G and Wi-Max communications. Initially, a corporate fed patch antenna array and a quasi- Yagi antenna is designed for 5G and Wi-Max frequency bands respectively. These two optimized antennas are vertically incorporated, and further optimized to work for dual band applications at 26 GHz and 5.5 GHz. The effects of the gap and parasitic elements between the antennas on the resonance and realized gain pattern are parametrically studied. The simulation results show that the dual band antenna operates from 5.16 GHz to 6.05 GHz and 25.625 GHz to 26.36 GHz with 10 dB return loss bandwidth with a realized gain of 4.43 dB at 5.5 GHz and 4.79 dB at 26 GHz. The scattering parameters, realized gain, and 3D radiation pattern are presented in the results section.