ULTRA-COMPACT MICROSTRIP ANTENNA ARRAY AND MINIATURIZED FEEDING NETWORK
ULTRA-COMPACT MICROSTRIP ANTENNA ARRAY AND MINIATURIZED FEEDING NETWORK
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DOI：
10.2528/pierc16110602
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发表时间：
2017
影响因子：
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通讯作者：
Wei Qiao;Xi Gao;Xingyang Yu;Si-min Li;Yannan Jiang;H. Ma
中科院分区：
文献类型：
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作者：
Wei Qiao;Xi Gao;Xingyang Yu;Si-min Li;Yannan Jiang;H. Ma
本文提出了一种交指谐振器，可以大大减少相邻贴片之间的互耦，实现超紧凑的微带天线阵列工作在2.4 GHz的无线通信系统。由于其出色的去耦性能，相邻贴片之间的边到边距离可以减小到0.08λ0甚至更小。同时，采用基于CRLH-TL的移相器和基于T结的功分器组成的小型化馈电网络，对紧凑型天线阵列进行馈电。仿真结果表明，该天线阵列具有8.34%的阻抗带宽。我们制作了天线阵列，以验证其性能。实验结果与模拟结果吻合较好。与已发表的设计相比，所提出的天线阵列具有超紧凑的结构，因此可以用于空间有限的通信系统。
In this paper, an interdigital resonator that can greatly decrease mutual coupling between adjacent patches is proposed to realize an ultra-compact microstrip antenna array operating in 2.4 GHz wireless communication system. Due to its remarkable performance of decoupling, the edge to edge distance between adjacent patches can be reduced to 0.08λ0 and even less. Meanwhile, a miniaturized feeding network, which is composed of a CRLH-TL-based phase shifter and T-junction-based power divider, is used to feed the compact antenna array. The simulation results show that the proposed antenna array has an impedance bandwidth of 8.34%. We fabricate the antenna array to verify its performance. The experimental results are in good agreements with the simulations. Compared to the published designs, the proposed antenna array has an ultra-compact structure and hence can be used in space limited communication systems.