O-Shape monopole antenna structure with etching and impedance matching for digital TV system application

This paper presents the design of O-shape monopole antenna with rectangular tuning stub to support the digital TV system which is simulated by using CST program. This antenna is designed coverage the digital TV system. The dimension of prototype antenna was 60 mm. × 100 mm. with etching technique and tuning impedance matching on antenna patch structure for bandwidth expansion. The measurement results of the antenna are the bandwidth of 76.24% (422-942 MHz) and the average gain of 3.35 dBi. The radiation pattern of the proposed antenna is omni-directional pattern.