程钰间

个人信息Personal Information

教授 博士生导师

性别:男

毕业院校:东南大学

学历:博士研究生毕业

学位:工学博士学位

在职信息:在岗

所在单位:电子科学与工程学院

办公地点:四号科研楼A区

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团队有关一种平衡对踵Vivaldi共形相控阵天线的研究成果在MMCE上发表

发布时间:2022-12-30   点击次数:

论文名称为“2-18 GHz balanced antipodal Vivaldi conformal phased array antenna with resistive load and shorting posts”。针对现有Vivaldi天线阵低剖面与大带宽无法兼顾的问题,本文提出了一种低剖面的2-18GHz平衡对踵Vivaldi共形相控阵天线。首先,该阵基于紧耦合机理实现了0.11倍低频波长的低剖面。同时,针对带内出现的间隙谐振与共模谐振,加载了电阻来抑制谐振电流从而消除间隙谐振;随后,加载了短路柱来减小谐振波长从而移除共模谐振。仿真结果表明该天线实现了9:1(2-18GHz)的阻抗带宽,该带宽内法向有源驻波小于2.5。另外,E60°扫描范围内,有源驻波小于2.5H45度扫描范围内,有源驻波小于3.8。为了验证阵列性能,对一个12×8规模的样机完成了加工与测试。测试结果与仿真结果高度吻合。工作主要完成人陈铭哲、王洪斌、程钰间。

论文链接https://onlinelibrary.wiley.com/doi/epdf/10.1002/mmce.23356

AbstractIn-this paper, a 2–18 GHz balanced antipodal Vivaldi conformal phased arrayantenna is proposed. Firstly, the conformal array achieves a low profile of0.11λLowby using the tightly coupling mechanism. Here, the gap-inducedelement resonance (GIER) and the common mode resonance occur in the oper-ating band, limiting the impedance bandwidth. Thus, the resistors are loaded toeliminate the GIER by suppressing the resonant current. Furthermore, theshorting posts are used to remove the common mode resonance by decreasingthe resonant length. A transition structure between the stripline (SL) and theground coplanar waveguide (GCPW) is designed to feed the antenna. The simu-lated results show that the array achieves a 9:1 bandwidth (2–18 GHz) for activeVSWR <2.5 at broadside. Besides, the active VSWR is less than 2.5 for ±60 scanning in E-plane and 3.8 for ±45 scanning in H-plane. A 128 array proto-type is fabricated and measured to validate the performance of the array. Themeasured results show a good agreement with the simulation.

Keywords balanced antipodal Vivaldi antenna, conformal phased array, resistive load,wideband.