W-Band Plumb Shaped Patch Antenna for Automotive Radar and 5G Applications

Millimeter-wave technology is getting very popular nowadays for fifth-generation (5G) communications due to increased data rate and bandwidth. The world radio conference 2015 by International Telecommunication Union (ITU) has allocated the band 81 GHz to 86 GHz for mobile applications on a primary basis. This work presents a very compact tapered plumb shaped patch antenna for the applications in a higher band (which covers 80.99 GHz to 84.95 GHz for and 74.9 GHz to 86.2 GHz for ) of 5G with a gain (maximum 7.14 dBi at the resonance frequency of 83.2 GHz and it is more significant than 1.72 dBi in the overall band for ), and the total efficiency at resonance frequency is 93.64%. To realize a high gain and to cover the assigned bandwidth of 5 GHz, the partial ground technique is applied, instead of using a fully grounded patch. The proposed compact antenna will be the key element of automotive radar (vehicular communication) and future generation applications.