Miniaturization Design and Implementation of W-Band Micro-Coaxial Antenna Based on Wafer-Level Packaging

LIU Bo-yuan; JIANG Yun; HUANG Zhao-yu; CHEN Jia-bei; YE Yuan; JI Peng-fei; XU Qing-hua; WU Wei-wei; HUANG Jing-jian; YUAN Nai-chang

doi:10.12263/DZXB.20210563

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Miniaturization Design and Implementation of W-Band Micro-Coaxial Antenna Based on Wafer-Level Packaging

PAPERS | 更新时间：2025-12-08

- Miniaturization Design and Implementation of W-Band Micro-Coaxial Antenna Based on Wafer-Level Packaging
- ACTA ELECTRONICA SINICA Vol. 50, Issue 5, Pages: 1098-1106(2022)
- 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：
- 基金信息：
- DOI：10.12263/DZXB.20210563
  CLC： O43
- Received：19 July 2021，
  
  Revised：2021-08-19，
  
  Published：25 May 2022
- 稿件说明：
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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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FILIPOVIC D S , et al . Modeling, design, fabrication, and performance of rectangular m-coaxial lines and components [J]. IEEE MTT-S , 2006 , 2 ( 5 ): 1393 ‑ 1396 .

MRUK J R , SAITO Y , KIM K , RADWAY M , FILIPOVIC D S . Directly fed millimeter-wave two-arm spiral antenna [J]. IET Electron Lett , 2010 , 46 ( 24 ): 1585 ‑ 1587 .

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LLAMAS-GARRO I , LANCASTER M J , HALL P S . Air-filled square coaxial transmission line and its use in microwave filters [J]. IEE Proc-Microw Antennas Propag , 2005 , 152 ( 3 ): 12 ‑ 14 .

MOZNEBI A R , ARSANJANI A , AFROOZ K , et al . Low-loss and broadband coaxial line to air-filled substrate integrated waveguide transition [J]. Reviews of modern physics , 2009 , 81 ( 2 ): 109 ‑ 162 .

PARMENT F , GHIOTTO A , VUONG T P , et al . Millimetre-wave air-filled substrate integrated waveguide slot array antenna [J]. Electron Lett , 2017 , 53 ( 11 ): 704 ‑ 706 .

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PARMENT F , GHIOTTO A , VUONG T P , et al . Air-filled substrate integrated waveguide for low-loss and high power-handling millimeterwave substrate integrated circuits [J]. Trans Microw Theory Tech , 2015 , 63 ( 4 ): 1228 ‑ 1238 .

PARMENT F , GHIOTTO A , VUONG T P , et al . Double dielectric slab-loaded air-filled SIW phase shifters for high-performance millimeter-wave integration [J]. Trans Microw Theory Tech , 2016 , 64 ( 9 ): 2833 ‑ 2842 .

MARTIN T , GHIOTTO A , et al . Broadband air-filled SIW to waveguide transition for interconnect, instrumentation and measurement applications [J]. IEEE Int Microwave Workshop Series on Advanced Materials and Processes , 2017 , 4 ( 3 ): 1 ‑ 3 .

LIMA I S , PARMENT F , GHIOTTO A , et al . Broadband dielectric-to-half-mode air-filled substrate integrated waveguide transition [J]. Microw Wirel Compon Lett , 2016 , 26 ( 6 ): 383 ‑ 385 .

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