Design and analysis of dualband J-Pole antenna with variation in “T” shape for transceiver radio communication at VHF and UHF band

Abstract

Transceiver radio is a commonly used wireless telecommunication system that establishes two-way communication in a relatively far distance without any cellular cost. However, radio communication needs a good antenna for transmitting and receiving well in both way. In this paper, a dual band J-Pole antenna for VHF and UHF transceiver radio communication was simulated and implemented. This antenna was designed for frequency of 146 MHz and was able to resonate well at UHF band by adding a “T” shaped compensating element. The material used was 4 mm iron wire. The J-Pole-T antenna performance was measured to get the resonant frequency, VSWR, and radiation pattern. Based on test results, the J-Pole-T antenna was resonating at frequency of 148 MHz with VSWR 1:1,1, while at the UHF band of 454 MHz with VSWR 1:1,05. The radiation pattern of J-pole-T antenna showed an omnidirectional shape. The testing result also revealed that the J-Pole-T antenna could transmit and receive radio signal as well.