Multilayered Bow-tie Antennas Design for Rfid and Radar Applications Using a Simple Equivalent Transmission Line Model

In this paper we propose the design of bow-tie antenna based on a simple modified transmission line model. The developed model is simple, accurate and takes into account all the antenna characteristics. The simulated antennas are designed to resonate at the frequencies 2.4 GHz and 8 GHz corresponding to RFID and Radars applications. To validate this last the obtained simulation results are compared to those obtained by the moment’s method (Agilent Momentum software). Using this transmission line approach the resonant frequency, input impedance, return loss can be determined simultaneously. The paper reports several simulation results that confirm the validity of the developed model. The obtained results are then presented and discussed.