Design of Dual Narrowband High Frequency Smart Antenna

Abstract

In this paper, an antenna for a narrow band in dual mode of operation for radio frequency applications is presented and is assumed to be Smart. The performance of antenna is analyzed to enhance radiation characteristics of autonomous vehicle system that are predominant in today’s technology operated at 76 GHz and 78 GHz. A bowtie structured antenna which are apt design for size reduction are operated and designed in two bands by changing its mechanical functionalities and other structure is also compared. For the effective transmission of signals in all the directions for vehicle, a dual-mode design is proposed with the directivity of 5 dB. Is radiation characteristics validates the better coverage and its radiation efficiency is estimated as 73% as compared with existing 51%. From value of insertion loss of -13.3 dB it is validated that the value of VSWR is lesser than unity. Current distribution provides its coverage and it is absolutely working better at operating frequency of autonomous vehicle band. Gain is increased by approximately by 2 dB and front to back ratio as 3.13 dB which helps in size reduction of around 11.2%.