A research for millimeter wave patch antenna and array synthesis

2017 26th Wireless and Optical Communication Conference (WOCC) Pub Date : 2017-04-01 DOI:10.1109/WOCC.2017.7929006

Yueyun Chen, Rongling Jian, Shuaishuai Ma, S. A. Mohadeskasaei

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引用次数: 10

Abstract

Millimeter-wave antennas are one of the key parts in 5G systems due to its useful properties such as ultra wideband and high transmission rate. In this paper, the research of microstrip millimeter wave patch antenna at 28 GHz is proposed. The resonant frequency of microstrip antenna is shifted to the expanding bandwidth through slotting the patch. Meanwhile, adding punish function to fitness function is proposed to develop the bandwidth and improve the resonant frequency to desired frequency. The slot position is obtained by the genetic algorithm (GA). Furthermore, by using the numerical array synthesis, a linear uniformly spaced array model with feed network is obtained. The array with better radiation pattern is obtained through GA. The simulation results show that the bandwidth is improved from 0.9 to 1.25 GHz while the resonant frequency is remained at 28 GHz with the help of the proposed punish function. The side-lobe level is lowered by 4 dB and the maximum antenna gain is improved to 0.4 dB at the cost of 1° wider of half-power (HP) beamwidth.

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毫米波贴片天线及其阵列合成研究

毫米波天线由于具有超宽带和高传输速率等有用特性，是5G系统的关键部件之一。本文提出了28ghz微带毫米波贴片天线的研究。通过开缝贴片使微带天线的谐振频率向扩展带宽偏移。同时，提出在适应度函数基础上增加惩罚函数，开发带宽，提高谐振频率至期望频率。通过遗传算法确定槽位位置。在此基础上，采用数值阵列综合方法，得到了具有馈电网络的线性等间距阵列模型。通过遗传算法得到了具有较好辐射方向图的阵列。仿真结果表明，该惩罚函数使带宽从0.9 GHz提高到1.25 GHz，而谐振频率保持在28 GHz。旁瓣电平降低4 dB，最大天线增益提高到0.4 dB，代价是波束宽度半功率(HP)增加1°。

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2017 26th Wireless and Optical Communication Conference (WOCC)

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