A Low Cost Microstrip Antennafor UWB Applications

摘要

A compact low cost microstrip Patch antenna(MPA) is proposed in this paper. The overall size of the proposed antenna measures 21mm x 14 mm x 1.6 mm. The simulation and analysis is done using CST Microwave Studio. The antenna parameters such as Bandwidth, input impedance, VSWR, Efficiency, Gain and Radiation pattern are simulated and analysed. The antenna resonates at wide frequency band from 3.11 to 14.254 GHz. Hence, achieving a bandwidth of 11.14GHz and a fractional bandwidth of 128.31%. The antenna is more efficient in the Ultra wide-band frequency band from 3.1 to 10.6 GHz with an average efficiency of 68 percent. The antenna is designed on a low-cost FR-4 substrate which is easily available on the market. The simulated results show that the proposed antenna has a wide range of applications such as WIMAX(3.4 to 3.6 GHz and 3.7 to 4.2 GHz), WIFi 802.11y(3.6 to 3.7), S-band(2 to 4GHz), C-band(4 to 8 GHz), X-band(8 to 12GHz), Ku-band(11.7 to 12.7GHz for downlink).