The 2*1 Microstrip Antenna Array with Low Coupling using Periodic Paperclip-shaped Slots

2018 7th International Conference on Computer and Communication Engineering (ICCCE) Pub Date : 2018-09-01 DOI:10.1109/ICCCE.2018.8539341

Dang Wen, Liu Xin-liang

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引用次数: 1

Abstract

The periodic paperclip-shaped (PPS) structure has been employed to suppress strong mutual coupling between antenna elements formicrostrip antenna array in MIMO wireless communication system. The special decoupling structure consists of three paperclip-shaped units periodically placed at the centre of the two narrow patches with the adjacent patches spacing of 0.1λ(λfree space frequency), providing the bandstop characteristic to keep out the strong mutual coupling between antenna elements. By using the proposed special bandgap structure, more than 36 dB mutual coupling reduction between microstrip antenna elements is achieved at the centre frequency 5.0 GHz without any resonant frequency shift. Note that inserting periodic paperclip-shaped structure could concentrate on strong power towards the particular side by changing current distribution and propagation direction, so the slight gain enhancement has been obtained by comparing to the antenna array without PPS structure. Additionally, this PPS structure is also suitable for antenna array with other frequency by adjusting size of the PPS structure.

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采用周期性回形针形槽的低耦合2*1微带天线阵列

在MIMO无线通信系统中，微带天线阵列采用周期性回形针(PPS)结构来抑制天线单元之间的强互耦。特殊的去耦结构由三个回形针形状的单元组成，周期性地放置在两个狭窄贴片的中心，相邻贴片间距为0.1λ(λ自由空间频率)，提供带阻特性，以防止天线元件之间的强互耦。采用该特殊带隙结构，在中心频率5.0 GHz处微带天线单元间的互耦降低超过36 dB，且无谐振频移。需要注意的是，插入周期性的曲别针状结构可以通过改变电流分布和传播方向将强功率集中到特定的一侧，因此与没有PPS结构的天线阵列相比，获得了轻微的增益增强。此外，通过调整PPS结构的尺寸，该PPS结构也适用于其他频率的天线阵列。

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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2018 7th International Conference on Computer and Communication Engineering (ICCCE)

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