Development of Vivaldi Antenna Applied for Digital TV System
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Abstract
This paper presents a Vivaldi microstrip antenna design for applying for digital TV systems. The Vivaldi microstrip antenna was designed by using a common plane signal cable, which resulted in the radiating of directional energy. And it is built on FR-4 printed circuit board, with 50-ohm input impedance, making it compact, lightweight, easy to build, install and operate. The building antenna used the Grooving technique, together with simulation by Computer Simulation Technology (CST) program to obtain the parameters suitable for the antenna, which equal to 50-ohm. The simulation results and the return loss measurements were less than -10 dB across the 510 MHz – 790 MHz bandwidth, and the gain value was about 5 dB. Therefore, this antenna design can be effectively used in digital TV systems.
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