Design of a Compact and Efficient Monopole Antenna for ISM Band Applications

2023 Second International Conference on Electrical, Electronics, Information and Communication Technologies (ICEEICT) Pub Date : 2023-04-05 DOI:10.1109/ICEEICT56924.2023.10157340

Deepali Pathak, SriHarsha Vardhan, A. Dutta

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Abstract

In this paper, a low cost, highly efficient and compact monopole antenna for Industrial, Scientific, and Medical (ISM) applications is presented. A new spiral coil rectangular shape structure possessing meander lines is designed to achieve a resonance at 0.915 GHz response with an Omni-directional radiation pattern. The proposed architecture makes the miniaturization by turning the conducting transmission lines as coil to both left and right part of the feedline to follow symmetry in current distribution. The ground plane has been adjusted in such a way to get proper impedance because if the area of ground plane increases input impedance shift to inductive region and resonant frequency decreases respectively. Ansys HFSS 3D High Frequency Simulation Software has been used to carry out the analysis of the presented antenna. The overall volume of the proposed antenna is 4.5 X 4.5 cm2 whereas the FR4 material is used as a substrate with a relative permittivity and loss tangent of 4.4 and 0.025, correspondingly. The peak gain of 0.88 dBi is achieved with a radiation efficiency of 80 to 98% for the desired band.

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一种适用于ISM波段的小型高效单极天线设计

本文提出了一种低成本、高效率、紧凑的单极天线，用于工业、科学和医疗(ISM)应用。设计了一种具有弯曲线的新型螺旋线圈矩形结构，以实现0.915 GHz的全向辐射响应。所提出的结构通过将导电传输线作为线圈旋转到馈线的左右两端以遵循电流分布的对称性来实现小型化。由于地平面面积增大，输入阻抗向感应区偏移，谐振频率减小，因此对地平面进行了调整，得到了合适的阻抗。利用Ansys HFSS三维高频仿真软件对所设计的天线进行了分析。所提出天线的总体体积为4.5 X 4.5 cm2，而FR4材料用作衬底，相应的相对介电常数和损耗正切为4.4和0.025。峰值增益为0.88 dBi，期望波段的辐射效率为80%至98%。

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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2023 Second International Conference on Electrical, Electronics, Information and Communication Technologies (ICEEICT)

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