Article | GigaHertz 2003. Proceedings from the Seventh Symposium | Slot antennas and quasioptical beamforming for cost-efficient integrated automotive radar

Title:
Slot antennas and quasioptical beamforming for cost-efficient integrated automotive radar
Author:
Denis Chouvæv: Acreo AB, Sweden Magnus Danestig: Acreo AB, Sweden
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Full text (pdf)
Year:
2003
Conference:
GigaHertz 2003. Proceedings from the Seventh Symposium
Issue:
008
Article no.:
019
No. of pages:
4
Publication type:
Abstract and Fulltext
Published:
2003-11-06
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


A substrate lens concept has been evaluated as possible design solution for low-cost automotive radar. Slot antennas with coplanar feed integrated on a quartz substrate are employed as radiators. Antenna slots are designed to operate at the first resonance to reduce their size and increase input impedance. Input reflection bandwidth (VSWR=2:1) of the slots is 2GHz centered at 24GHz. The lens is made of plastic material with dielectric constant equal to that of quartz to avoid excitation of surface waves. A 5-element array of slots has been designed to demonstrate discrete beam scanning in the lens system. Beamwidth of around 10Âș and deflection pitch of 8-12Âș have been measured. The measured values are in good agreement with theoretical predictions.

GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
Denis Chouvæv, Magnus Danestig
Title:
Slot antennas and quasioptical beamforming for cost-efficient integrated automotive radar
References:

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GigaHertz 2003. Proceedings from the Seventh Symposium

Author:
Denis Chouvæv, Magnus Danestig
Title:
Slot antennas and quasioptical beamforming for cost-efficient integrated automotive radar
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