Circular patch partial and slotted ground with rectangular CSRR metamaterial antenna for wireless application
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Date
2018-08
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
Antenna is the eminent part of wireless communication. As the requirements of wireless devices increasing day by day like Bluetooth devices, radio frequency devices and size of such devices decreasing accordingly. To meet the requirement of small size devices antenna need to be compact and single antenna can be used for several applications, without affecting the antenna parameters. Metamaterial, having the properties beyond that of normal material are used to enhance antenna parameters such as providing wider bandwidth, high gain and miniaturization of antenna, according to the device requirement. Proposed antenna is designed in the substrate size of 35×30 𝑚𝑚2 with height of 1.6mm. FR-4 epoxy substrate having permittivity of 4.4 and loss tangent of .02 is used. Rectangular CSRR structure on circular patch is used get metamaterial properties and better result in less antenna size. Ground size is reduced and slots are cut on both patch as well as ground plane to increase the bandwidth. Proposed antenna is simulated using Ansoft HFSS software, fabricated in PCB designing machine and tested using VNA. Proposed antenna resonates in 2.85-11.4 GHz and 16.35-19.5 GHz frequency bands with the bandwidth of 8.55 GHz and 3.15 GHz having gain above 2.73dB and efficiency above 90% throughout the entire frequency range. Proposed antenna has applications in WLAN, WiMAX, satellite and radar communication.
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