77-GHz FOWLP MIMO AiP for Compact High-Resolution Radar With Horizontally and Vertically Long- and Medium-Range Sensing

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77-GHz FOWLP MIMO AiP for Compact High-Resolution Radar With Horizontally and Vertically Long- and Medium-Range Sensing
Title:
77-GHz FOWLP MIMO AiP for Compact High-Resolution Radar With Horizontally and Vertically Long- and Medium-Range Sensing
Journal Title:
IEEE Transactions on Components, Packaging and Manufacturing Technology
Keywords:
Publication Date:
01 April 2024
Citation:
Sun, M., Guan Lim, T., Soon Wee Ho, D., Wu, J., Chai, T. C., & Ma, Y. (2024). 77-GHz FOWLP MIMO AiP for Compact High-Resolution Radar With Horizontally and Vertically Long- and Medium-Range Sensing. IEEE Transactions on Components, Packaging and Manufacturing Technology, 14(4), 537–546. https://doi.org/10.1109/tcpmt.2024.3383463
Abstract:
77-GHz automotive multiple input multiple output (MIMO) radar is traditionally implemented in the bulky PCB board in a cascaded format to achieve a high resolution. This article reports mold-on-mold fan-out wafer-level packaging (FOWLP) antenna-in-packages (AiP) technology to directly mold the radar dies into the package while with the mold-on-mold advantage of integrating the antenna seamlessly on the top of the package. This process combined with the patented MIMO layout makes a high-resolution MIMO radar achievable in a very compact format: within a space of 64×32×0.7 mm, two 32×16 mm AiPs and two 16×16 mm AiPs, with each AiP carrying one transceiver die, are configured to achieve both long range radar (LRR) and medium range radar (MRR) functions with 1° angular resolution in both vertical and horizontal sensing operations. We disclose the FOWLP AiP structure and key design details to implement such a MIMO radar, including AiP element and RF passive circuits modeling and test; the MIMO AiP performance is shown in terms of impedance bandwidth, patterns, feed line consistency, and isolations; the LRR and MRR MIMO detection range and resolution performance are finally evaluated
License type:
Publisher Copyright
Funding Info:
There was no specific funding for the research done
Description:
© 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
ISSN:
2156-3985
2156-3950
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