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A 77-GHz antenna and fully integrated radar transceiver in package

  • A. Fischer (a1), A. Stelzer (a1) (a2) and L. Maurer (a3)

A 77-GHz–directional folded dipole antenna integrated in an embedded wafer level ball grid array package is presented. For the characterization of the antenna, a frequency multiplier is embedded, which scales the 4.25-GHz input signal up to 76.5 GHz and allows the use of a commercial signal source. The antenna structure is manufactured at the metallic layer, in the fan-out area of the package, and is directly connected to the monolithically integrated transceiver. The gain of the antenna is about 7 dBi, measured over a large bandwidth of about 8 GHz. The combination of the frequency multiplier with a 77-GHz transceiver and the on-package antenna is a promising approach for a system-in-package to future radar modules for automotive radar applications. Such a module avoids 77-GHz transitions to the printed circuit board and hence simplifies the design and manufacturing of the radar sensor significantly.

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Corresponding author: A. Fischer Email:
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[1] H.-P. Forstner : A 77GHz 4-channel automotive radar transceiver in SiGe, in 2008 IEEE Radio Frequency Integrated Circuits Symp., Atlanta, GA, June 2008, 233236.

[2] Y. Zhang ; D. Liu : Antenna-on-chip and antenna-in-package solutions to highly integrated millimeter-wave devices for wireless communications, IEEE Trans. Antennas Propag., 57(10) (2009), 28302841.

[4] D.G. Kam ; D. Liu ; A. Natarajan ; S. Reynolds ; H.-C. Chen ; and B. Floyd : LTCC packages with embedded phased-array antennas for 60 GHz communications, IEEE Microw. Wirel. Compon. Lett., 21(3) (2011), 142144.

[5] A. Fischer ; F. Starzer ; H.-P. Forstner ; E. Kolmhofer ; A. Stelzer : A 77-GHz SiGe frequency multiplier (×18) for radar transceivers, in Bipolar/BiCMOS Circuits and Technology Meeting (BCTM), 2010 IEEE, October 2010, 7376.

[8] S. Nicolson ; P. Chevalier ; B. Sautreuil ; S. Voinigescu : Single-chip W-band SiGe HBT transceivers and receivers for doppler radar and millimeter-wave imaging. IEEE J. Solid-State Circuits, 43(10) (2008), 22062217.

[13] C. Zhang ; M. Kuhn ; B. Merkl ; A. Fathy ; M. Mahfouz : Real-time noncoherent UWB positioning radar with millimeter range accuracy: theory and experiment, IEEE Trans. Microw. Theory Techn. 58(1) (2010), 920.

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International Journal of Microwave and Wireless Technologies
  • ISSN: 1759-0787
  • EISSN: 1759-0795
  • URL: /core/journals/international-journal-of-microwave-and-wireless-technologies
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