A Compact Single-Board Solution for Commercializing Cost-Effective 77 GHz Automotive Front Radar

Zhang, Wogong; Li, Nannan; Yu, Jinzhong; Kasper, E.

doi:10.1109/apmc47863.2020.9331712

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…This leads logically to PCB antenna being the most widely used antenna connected to the transceiver. However, dielectric loss will deteriorate the RF performance especially when complex antenna systems are used [14], [15]. PCB antennas also lack flexibility for routing of the feeding lines and placement of the antenna elements.…”

Section: Introductionmentioning

confidence: 99%

Gapwaveguide Automotive Imaging Radar Antenna With Launcher in Package Technology

Ren

Bencivenni²,

Carluccio

et al. 2023

IEEE Access

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A 77 GHz gapwaveguide radar antenna system with launcher-in-package (LiP) technology is presented in this paper for automotive imaging applications. Firstly, state-of-theart LiP technology integrated with radar transceivers is proposed. The transceivers are equipped with waveguide interfaces for RF connection, enabling direct integration with waveguide antennas. Robust interconnects for coupling transceivers to waveguide antennas with non-galvanic contacts are proposed using gapwaveguide packaging technology. A simultaneous multi-mode imaging radar system using 4 cascaded aforementioned transceivers is introduced. Designated antenna elements of the system are realized by slot arrays with center-fed ridge gapwaveguides. Ultimately, the imaging radar antenna has a top radiating slot layer, a middle distribution layer and a bottom interconnect layer capable of accommodating 4 LiP radar transceivers with considerable assembly tolerance which is really one of the key aspects for commercial automotive radar applications. Input matching and radiation patterns of the antenna are verified by measurement. The results indicate that the proposed gapwaveguide imaging radar antenna in conjunction with the novel LiP packaging is able to serve the radar system properly. To the best of the authors' knowledge, the proposed gapwaveguide antenna system is the first imaging radar antenna system ever developed for LiP components. This work provides a compact, high-efficiency and cost-effective solution for the integration of complex radar systems with waveguide antennas.INDEX TERMS imaging radar, automotive, launcher-in-package, transceiver, gapwaveguide, slot array.

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Section: Introductionmentioning

confidence: 99%