基于晶圆级封装的W波段微同轴天线小型化设计与实现
Miniaturization Design and Implementation of W-Band Micro-Coaxial Antenna Based on Wafer-Level Packaging
- 电子学报 2022年50卷第5期 页码：1098-1106
- 作者机构：
1.国防科技大学电子科学学院CEMEE国家重点实验室, 湖南长沙 410073
2.湖北三江航天险峰电子信息有限公司, 湖北孝感 432000
- 作者简介：
[ "刘博源 男,1991年生于河北石家庄.现为国防科技大学电子科学学院博士研究生.主要研究方向为微波毫米波器件和复合电磁材料.E-mail: liuboyuan@nudt.edu.cn" ]
[ "江 云 男,1990年生于湖南邵阳.现为国防科技大学电子科学学院博士研究生.主要研究方向为毫米波无源器件.E-mail: 867581306@qq.com" ]
[ "黄昭宇 男,1992年生于河北石家庄.现为国防科技大学电子科学学院博士研究生.主要研究方向为相控阵紧耦合天线、毫米波器件与系统.E-mail: huangzhaoyu10@163.com" ]
- 基金信息：国防预研项目(AD1.235.00032)
DOI：10.12263/DZXB.20210563
中图分类号： O43收稿：2021-07-19，
修回：2021-08-19，
纸质出版：2022-05-25
- 稿件说明：
移动端阅览
刘博源,江云,黄昭宇等.基于晶圆级封装的W波段微同轴天线小型化设计与实现[J].电子学报,2022,50(05):1098-1106.
LIU Bo-yuan,JIANG Yun,HUANG Zhao-yu,et al.Miniaturization Design and Implementation of W-Band Micro-Coaxial Antenna Based on Wafer-Level Packaging[J].ACTA ELECTRONICA SINICA,2022,50(05):1098-1106.
刘博源,江云,黄昭宇等.基于晶圆级封装的W波段微同轴天线小型化设计与实现[J].电子学报,2022,50(05):1098-1106. DOI： 10.12263/DZXB.20210563.
LIU Bo-yuan,JIANG Yun,HUANG Zhao-yu,et al.Miniaturization Design and Implementation of W-Band Micro-Coaxial Antenna Based on Wafer-Level Packaging[J].ACTA ELECTRONICA SINICA,2022,50(05):1098-1106. DOI： 10.12263/DZXB.20210563.
摘要
空气微同轴是一种以空气作为填充介质的波导结构
波导壁周期性开窗
内导体由稀疏介质带支撑
具备频带宽、隔离度高、尺寸小的特点
可以实现三维高密度系统集成. 本文结合空气微同轴的超宽带特性
考虑到其天线/电路一体可加工易级联
利用CST、HFSS等软件
得到了W波段微同轴天线模型. 实际加工出对应微同轴天线实物. 测试结果显示
在中心频率94GHz
实现了反射系数低于-10dB的宽带特性.在毫米波频段内得到天线单元增益值超过7dBi、组阵后增益大于12dBi的工作性能
后者E面3dB波束宽度超过20°. 此晶圆级封装的毫米波天线相比传统介质波导天线缩小100倍
可以批量高精度加工
适合在诸多毫米波模块中应用和推广.
Abstract
The air micro-coax is a kind of structure with air as the filling medium
where its waveguide wall is periodically windowed
and the inner conductor is supported by the sparse medium belt. Its characteristics include wide frequency band
high isolation
small size
and being able to achieve three-dimensional high-density system integration. In connection with air micro-coax’s features of ultra wide band(UWB)
this paper considered that its antenna/circuit integration was processible and easily cascaded. W-band micro-coaxial antenna models were obtained by modeling and simulation with CST
HFSS. Corresponding micro-coaxial antennas were fabricated. The test results showed that at 94GHz central frequency
reflection coefficient was lower than -10dB. Working performance of the gain value of the antenna unit with over 7dB and that of arrayed antenna over 12dB were realized in the millimeter wave frequency band
and the 3dB beam width of the latter one on E-field was beyond 20°. The millimeter wave antenna packaged at the wafer-level is 100 times smaller than the traditional dielectric waveguide antenna
and can be processed in batches with high precision. The design can be applied and popularized in many millimeter wave modules.
关键词
Keywords
references
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