Design of Dual Band H-Shaped Antenna for DCS and WLAN Applications

摘要

This paper presents the performance of a dual-band H-shaped patch antenna for DCS and WLAN applications. The proposed antenna employs a microstrip feed line and a FR4 substrate on which an H-shaped slot is cut using the etching technique. This structure radiates for Digital Communication System DCS (1.710-1.880) GHz and for Local Area Network WLAN (5.15 -5.35) GHz. A commercially available software CST Microwave Studio simulation showed that the proposed design exhibits a return loss of 15.36 dB and 23.493 dB at 1.81 GHz and 5.295 GHz respectively. Further, for each there was a power gain of 2.45 dBi and 2.1 dBi, and the VSWR was less than 2 for both bands while efficiency is between 80 to 90%. The proposed antenna could possibly be employed in a modern communication system that has constraints in size and weight.