Compact Cross Elliptical Patch Antenna with Wideband Characteristics for IOT Applications

In this article we have proposes a compact size antenna for UWB and RADAR applications. It consists of a cross elliptical radiating patch connected to the microstrip line that feed to it and a rectangular ground plane on the other side of the FR_4 epoxy dielectric substrate(∊
r
=4.4). The size of the antenna is small having dimensions 20×28×1.6mm
³
. Additional to this for reducing the interference from the IEEE WiMAX band from 3.0 to 3.4 GHz an inverted T filter has been stubbed to the radiating patch by etching a square slot into it. The antenna has losses less than −10dB and positive gain in the desired operating regions for UWB and RADAR application till 12GHz. The antenna is designed and results are simulated on the HFSS software.