Candy Shape Microstrip Patch Antenna for Wireless Applications

The antenna configured in this manuscript is a square patch that occupies an area of 144mm2. Aerial is fed by microstrip feed line of 3.6 X 14 mm2 (W X L). Using CST Microwave Studio Suite TM, the structure put forward has been planned as well as discussed. The antenna operates from 3.4 ̢ 9.1 GHz with VSWR ⩽ 2 and gain as 3.9dB. The design of aerial put forward has been made on FR4-epoxy (ε
r
= 4.4) substrate with thickness of sheet as 1.59mm. Inside the patch cylindrical slot with inner and outer radius as 3 and 5 mm respectively is done. At 180
⁰
both concentric circles are joined by square patch. Isosceles triangles have been cut inside to achieve better impedance matching. Parametric analysis of the aerial has been done. Patch has low latency, low cost, also has good results in terms of bandwidth, gain, VSWR. It is fit for utilization in WiMAX, IEEE 802.11a WLAN, C band (4-8GHz) and partial S and X bands.