Genetically engineered tri-band microstrip antenna with improved directivity for mm-wave wireless application

Q3 Engineering

AIMS Electronics and Electrical Engineering Pub Date : 2022-01-01 DOI:10.3934/electreng.2022001

Arebu Dejen, J. Jayasinghe, M. Ridwan, J. Anguera

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引用次数: 6

Abstract

Multi-band microstrip patch antennas are convenient for mm-wave wireless applications due to their low profile, less weight, and planar structure. This paper investigates patch geometry optimization of a single microstrip antenna by employing a binary coded genetic algorithm to attain triple band frequency operation for wireless network application. The algorithm iteratively creates new models of patch surface, evaluates the fitness function of each individual ranking them and generates the next set of offsprings. Finally, the fittest individual antenna model is returned. Genetically engineered antenna was simulated in ANSYS HFSS software and compared with the non-optimized reference antenna with the same dimensions. The optimized antenna operates at three frequency bands centered at 28 GHz, 40 GHz, and 47 GHz whereas the reference antenna operates only at 28 GHz with a directivity of 6.8 dB. Further, the test result exhibits broadside radiation patterns with peak directivities of 7.7 dB, 12.1 dB, and 8.2 dB respectively. The covered impedance bandwidths when S11$ \leq $-10 dB are 1.8 %, 5.5 % and 0.85 % respectively.

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改良了毫米波无线应用指向性的基因工程三波段微带天线

多波段微带贴片天线由于其外形小、重量轻、结构平坦等特点，为毫米波无线应用提供了方便。本文采用二进制编码遗传算法研究了单微带天线的贴片几何优化，以实现无线网络应用中的三频段频率运行。该算法迭代地创建新的斑块表面模型，评估每个个体的适应度函数，对它们进行排序，并生成下一组后代。最后，返回最适合的单个天线模型。利用ANSYS HFSS软件对基因工程天线进行了仿真，并与未优化的相同尺寸参考天线进行了比较。优化后的天线工作在28 GHz、40 GHz和47 GHz三个频段，而参考天线仅工作在28 GHz，指向性为6.8 dB。此外，测试结果显示出宽侧辐射模式，峰值方向性分别为7.7 dB, 12.1 dB和8.2 dB。S11 $ \leq $ -10 dB时的覆盖阻抗带宽为1.8 %, 5.5 % and 0.85 % respectively.

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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来源期刊

AIMS Electronics and Electrical Engineering Engineering-Control and Systems Engineering

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

8 weeks