ANTENNA DEVICE AND ARRIVAL ANGLE CALCULATING DEVICE USING SAME

WIPO Patent Application WO/2013/118560

A1

This invention provides an antenna device and arrival angle calculating device able to shorten the time necessary for calculating an arrival angle by reducing the computational load. An antenna device (11) provided with a plurality of antenna elements (111, 112), a reflective element (114) disposed separated by a predetermined distance from the back side of the antenna elements (111, 112), and a waveguide element (113) disposed separated by a predetermined distance from the front side of the antenna elements (111, 112); said antenna device being characterized in that the antenna elements (111, 112), the waveguide element (113), and the reflective element (114) are disposed so that the relationship between the arrival angle of a radio wave using the antenna elements (111, 112) as a reference and the phase difference of the radio wave between the plurality of antenna elements (111, 112) is linear.

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SANO TAKASHI (JP)
TAKAI DAISUKE (JP)
TANEMURA TAKESHI (JP)
OTAKI YUKIO (JP)

PCT/JP2013/050902

August 15, 2013

January 18, 2013

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ALPS ELECTRIC CO LTD (JP)

G01S3/48; H01Q15/14; H01Q21/08

JPS5635071A	1981-04-07
JPH10150319A	1998-06-02
JP2006108841A	2006-04-20

MATSUSHITA, Masahiro et al. (JP)
Matsushita Masahiro (JP)

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