A Compact Wideband Bidirectional Dielectric Resonator Antenna Array Based on Back-to-Back structure

A Compact Wideband Bidirectional Dielectric Resonator Antenna Array Based on Back-to-Back structure
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DOI：
10.23919/ursigass57860.2023.10265627
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发表时间：
2023-08
期刊：
2023 XXXVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)
影响因子：
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通讯作者：
Linsong Shi;Daotong Li;Jiaxin Wang;Qiang Chen
Linsong Shi;Daotong Li;Jiaxin Wang;Qiang Chen
中科院分区：
其他
文献类型：
--
作者：
Linsong Shi;Daotong Li;Jiaxin Wang;Qiang Chen

文献摘要

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基于背靠背结构，提出了一种新型的四单元紧凑型双向柱面介质谐振器天线阵列，在不增加平面尺寸的情况下实现了双向辐射。微带线通过缝隙耦合作为上下天线的馈电结构，减小了馈电网络的整体规模和插入损耗。−的10dB阻抗带宽为2.01-2.45 GHz(分数带宽为19.7%)。提出的CDRA阵列的最大增益为8.6dBi，适用于2.4 GHz的ISM频段和隧道通信应用。
In this paper, a novel four-element compact bidirectional cylindrical dielectric resonator antenna (CDRA) array is proposed based on the back-to-back structure, which exhibits the bidirectional radiation without introducing additional plane size. The microstrip line acts as feeding structure for both the upper and lower antennas by slot coupling, which reduces the overall feeding network size and insertion loss. The −10dB impedance bandwidth is 2.01-2.45GHz (fractional bandwidth of 19.7%). The maximum gain of the proposed CDRA array is 8.6dBi, which is suitable for ISM band of the 2. 4GHz and the application of tunnel communication.