A Wideband Circular Patch Antenna with Low Pass Filter on a Same Substrate for Rectenna Application

In this paper, a wideband circular micro strip patch antenna design is proposed and it will be suitable for wireless communication for GPS, GSM, CDMA, 3G, 4G, Wi-Fi, W-MAX, Bluetooth, and W-LAN. This antenna is designed on dielectric substrate that having the dielectric constant 3.2 and height of substrate is 0.762mm. The proposed structure of the antenna is simulated on CST simulation software and the simulated return loss is less than-10dB for the frequency range 1.6 - 15 GHz and higher frequencies. A circular micro strip antenna is a narrow band but with the modified ground plane, this antenna shows the wideband response because it´s Q (Quality factor) and bandwidth is inversely proportional to Q, therefore a narrowband circular patch work as a wideband antenna. The proposed antenna can be used for GSM, GPS, PCS, Bluetooth, W-LAN and UWB spectrum.