Title:
MILLIMETER-WAVE DIELECTRIC LENS ANTENNA AND SPEED SENSOR USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/125716
Kind Code:
A1
Abstract:
A speed sensor aligning the normal direction of a one-patch antenna arranged on a mounting substrate and the optical axis of a dielectric lens uses a frame for tilting a sensor module, in order to obtain a progress direction component (cosθ) when installed on a horizontal/vertical surface of an automobile or train carriage. When concentrating a beam by using the one-patch antenna and a bullet-shaped dielectric lens, the dielectric lens is tilted and the lens bottom surface section is cut at a surface parallel to the antenna mounting substrate surface. The one-patch antenna comprises one patch and a GND electrode. The gain center for the radiation characteristics is in the normal direction of the antenna substrate however the radiation characteristics become substantially hemispherical wave-shaped.
Inventors:
NAGAISHI HIDEYUKI (JP)
MATSUMURA TAKAFUMI (JP)
MATSUMURA TAKAFUMI (JP)
Application Number:
PCT/JP2013/083417
Publication Date:
August 21, 2014
Filing Date:
December 13, 2013
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
H01Q15/08; G01S7/03; G01S13/58; H01Q1/42; H01Q19/09
Foreign References:
| JPS63224507A | 1988-09-19 | |||
| JP2007270459A | 2007-10-18 | |||
| JPH10505429A | 1998-05-26 |
Attorney, Agent or Firm:
INOUE, Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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