Title:
ANTENNA DEVICE, BEAM STEERING SYSTEM, RADAR APPARATUS, AND SENSOR USING RADAR APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/213525
Kind Code:
A1
Abstract:
Provided are an antenna device that performs beam scanning over a wider angle with a small configuration that can be integrated, and a radar apparatus using the same. The antenna device has a waveguide having an input end, and a first antenna and a second antenna that are connected to the waveguide. The first antenna receives at least one of a first signal that has been radiated from the first antenna, reflected externally, and returned, and a second signal that has been radiated from the second antenna, reflected externally, and returned, in a direction in which return light to the incident end is not generated in the first antenna, and combines the received signal and first reference light that is not radiated from the first antenna and remains in the first antenna.
Inventors:
MONNAI YASUAKI (JP)
Application Number:
PCT/JP2020/016117
Publication Date:
October 22, 2020
Filing Date:
April 10, 2020
Export Citation:
Assignee:
UNIV KEIO (JP)
International Classes:
H01Q13/22; G01S7/02; G01S13/34; H01Q13/26; H01Q21/08
Domestic Patent References:
| WO2007026792A1 | 2007-03-08 |
Foreign References:
| JP2012202830A | 2012-10-22 |
Other References:
MURANO, KOSUKE ET AL.: "Low-Profile Terahertz Radar Based on Broadband Leaky-Wave Beam Steering", IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY, vol. 7, no. 1, 1 December 2016 (2016-12-01), pages 60 - 69, XP011638811, DOI: 10.1109/TTHZ.2016.2624514
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
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