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Compact integrated slot array antennas for the 79 GHz automotive band

Published online by Cambridge University Press:  07 July 2010

Lars Pettersson ,
Shi Cheng ,
Michael Salter ,
Anders Rydberg  and
Duncan Platt
Lars Pettersson*
Affiliation:
Acreo AB – Innovative Electronics, Box 787, SE-601 17, Norrköping, Sweden.
Shi Cheng
Affiliation:
Uppsala University, Signal and Systems, Box 54, SE-751 51, Uppsala, Sweden.
Michael Salter
Affiliation:
Acreo AB – Innovative Electronics, Box 787, SE-601 17, Norrköping, Sweden.
Anders Rydberg
Affiliation:
Uppsala University, Signal and Systems, Box 54, SE-751 51, Uppsala, Sweden.
Duncan Platt
Affiliation:
Acreo AB – Innovative Electronics, Box 787, SE-601 17, Norrköping, Sweden.
*
Corresponding author: L. Pettersson Email: lars.pettersson@acreo.se
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Abstract

This paper presents two compact slot array antennas for the 79 GHz automotive band integrated into a 28 µm thick benzocyclobutene (BCB) substrate attached to a 325 µm thick 5–20 Ω cm bulk resistivity silicon wafer. The two antennas are a transmit (TX) 1 × 8 slot array antenna with a size of 1 × 23 mm and a receive (RX) 8 × 8 slot array antenna with a size of 15 × 23 mm. Promising performance has been measured with the TX and RX subarray antennas (gain >4 dBi) with good matching to 50 Ω (RL > 10 dB) in the frequency range 70–90 GHz. By using a metal cavity, mounted on the back of the antenna, potential parallel plate or cavity modes could be reduced and the gain could also be increased by 2 dB. The measured and the simulated results are consistent.

Keywords

Integrated slot antennaMillimeter wave antennaParallel mode suppression
Type
Original Article
Information
International Journal of Microwave and Wireless Technologies , Volume 2 , Special Issue 3-4: European Microwave Week 2009 , August 2010 , pp. 305 - 316
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2010

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References

REFERENCES

[1]Platt, D.; Pettersson, L.; Salter, M.; Jakonis, D.; Haglund, J.: Integrated 79 GHz UWB automotive radar front-end based on Hi-Mission MCM-D silicon platform, in 6th European Radar Conf., Rome, Italy, October 2009.CrossRefGoogle Scholar
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[5]2T204, http://www.catrene.org/web/downloads/profiles_medea/2T401_profile.pdfGoogle Scholar