A Metamaterial Inspired Frequency Reconfigurable Koch Snowflake Fractal Antenna for Wi-Fi/Wi-MAX/WLAN/C/X band Communications

2021 IEEE International Conference on Mobile Networks and Wireless Communications (ICMNWC) Pub Date : 2021-12-03 DOI:10.1109/ICMNWC52512.2021.9688474

Ramalakshmi Gudla, P. Mallikarjuna Rao

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Abstract

The rapid advancements in the wireless technology requires antennas which are compact, miniaturized and suitable to serve multi wireless services. Fractal antennas have been proved as better radiating elements in this scenario. In this paper a 2-order Koch snow flake fractal antenna of volume 29.6 x 35.7 x 1.6mm3 is designed and developed on FR4-epoxy with Ԑr=4.4. A metamaterial SRR is placed on the ground of this antenna aiming to meet multiband response. To reconfigure the frequency bands a PIN Diode ‘D’ is placed on the strip line feed which is the proposed structure in this case. The simulations are carried out by using HFSS tool over the frequency range of (1 GHz -12GHz) and the radiation parameters like S(1,1)dB, VSWR values are reported. The simulation results producing 7 frequency bands which covers GPS/Wi-Fi/WLAN/C-band/X band wireless communications. The switch off condition of the Diode will reject the GPS, Wi-Fi, Wi-MAX and X bands effectively.

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用于Wi-Fi/Wi-MAX/WLAN/C/X波段通信的超材料启发频率可重构科赫雪花分形天线

无线技术的飞速发展对天线的要求是小型化、小型化和适合多种无线业务。在这种情况下，分形天线被证明是更好的辐射单元。本文设计并研制了体积为29.6 x 35.7 x 1.6mm3的二阶科赫雪花分形天线，其材料为fr4 -环氧树脂，Ԑr=4.4。为了满足多波段响应，在天线的地面上放置了一个超材料SRR。为了重新配置频带，PIN二极管“D”被放置在带线馈电上，这是在这种情况下提出的结构。利用HFSS工具在(1ghz -12GHz)频率范围内进行了仿真，得到了S(1,1)dB、VSWR等辐射参数。仿真结果产生7个频段，涵盖GPS/Wi-Fi/WLAN/ c波段/X波段无线通信。二极管的关断条件将有效地抑制GPS、Wi-Fi、Wi-MAX和X频段。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2021 IEEE International Conference on Mobile Networks and Wireless Communications (ICMNWC)

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