Abstract
A simple and compact UWB printed monopole antenna with filtering characteristic is presented. The proposed antenna consists of a defected ground structure (DGS) and a radiating patch with arc-shaped step that is notched by removing two squares at the bottom. By using a modified shovel-shaped defected ground structure, band-notched characteristic that in volves both operating frequency band of Dedicated Short-Range Communication (DSRC) systems and WLAN is obtained. Omnidirectional H-plane radiation patterns and appropriate impedance characteristic are the main features of the proposed antenna that are achieved by designing the lower edges of the radiating patch in the form of arc-shaped step. The designed antenna has a small size of 15 × 18 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> and provides the impedance bandwidth of more than 128% between 3.1 and 14 GHz for VSWR <; 2, with notch frequency band at 5.13-6.1 GHz.
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