Broadband high-gain W-band antenna integrated module for radar applications

Siqi Lan; Pei Gan; Yunyan Zhou; Gang Song; Wenwen Zhang; Qidong Wang; Jun Li

doi:10.1587/elex.22.20250115

LETTER

Broadband high-gain W-band antenna integrated module for radar applications

Siqi Lan, Pei Gan, Yunyan Zhou, Gang Song, Wenwen Zhang, Qidong Wang, Jun Li

Author information

Siqi Lan
System Packaging and Integration Technology Center, Institute of Microelectronics of the Chinese Academy of Sciences
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences
Pei Gan
System Packaging and Integration Technology Center, Institute of Microelectronics of the Chinese Academy of Sciences
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences
Yunyan Zhou
System Packaging and Integration Technology Center, Institute of Microelectronics of the Chinese Academy of Sciences
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences
Gang Song
System Packaging and Integration Technology Center, Institute of Microelectronics of the Chinese Academy of Sciences
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences
Wenwen Zhang
System Packaging and Integration Technology Center, Institute of Microelectronics of the Chinese Academy of Sciences
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences
Qidong Wang
System Packaging and Integration Technology Center, Institute of Microelectronics of the Chinese Academy of Sciences
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences
Jun Li
System Packaging and Integration Technology Center, Institute of Microelectronics of the Chinese Academy of Sciences
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences

Keywords: W-band, antenna integration module, high-density interconnect (HDI), radar applications

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2025 Volume 22 Issue 10 Pages 20250115

DOI https://doi.org/10.1587/elex.22.20250115

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J-STAGE : elex 22 15 pp.20258003-20258003

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Abstract

This study presents a W-band antenna integration module using High-Density Interconnect (HDI) technology for radar applications. The module integrates 64 transmit/receive (TRX) channels, each with a 2×2 sub-array, forming a 16×16 antenna array. To address warpage and manufacturing constraints caused by asymmetric copper coverage in HDI substrates, we introduce non-resonant patches and cavity structures, enhancing copper uniformity and gain performance. Broadband impedance matching techniques mitigate vertical impedance discontinuities. A single TRX channel demonstrates a 23.35% impedance bandwidth (87-110 GHz) and a peak gain of 13.74 dBi. The full module’s simulated peak gain reaches 26.83 dBi at 97 GHz, confirming the viability of HDI technology for W-band antenna integration.

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