A Microstrip Antenna with Diamond Patch and L-Shaped Stub for WLAN and RFID Applications

A planar Dual-Band microstrip antenna with Diamond patch and L-Shaped stub is presented for RFID applications with 2.4-2.484GHz (ISM) frequency range and also has WLAN communications with 5.15-5.35GHz are provided. The antenna is fed by a 50 ohm microstrip line. In this antenna using an L-Shaped stub that is split at the end of the feed line it is possible to create another frequency band with the central frequency of 5.3GHz. The antenna has VSWR≤1.5 parameter and omni-directional radiation pattern for both frequency bands. Also in this antenna the return losses examined for the intended frequencies. This antenna can be configured on FR4 substrate with a thickness of 1.6mm, loss tangent of 0.024, the permittivity of 4.4 and the ground plane with the length of 10mm. The intended antenna in this paper is simulated by ANSYS HFSS and CST microwave studio and the results are compared that indicate the low tolerances between the obtained responses

کلیدواژه ها:

Microstrip patch antenna ، Dual-Band ، RFID ، WLAN