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Title:
ANTENNA DEVICE AND ANTENNA EXCITATION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/134877
Kind Code:
A1
Abstract:
This antenna device is provided with: an excitation distribution calculation unit (13) which calculates the excitation distribution W1(t) of a communication beam consisting of radio waves transmitting a communication signal d(t), and the excitation distribution W2(t) of an interference beam consisting of radio waves transmitting an interference signal i(t), such that the sum of the squares of the excitation amplitude of the communication beam and the excitation amplitude of the interference beam are the same in each of multiple element antennas (3-1) to (3-K); and an excitation distribution synthesis unit (25) which synthesizes the communication beam excitation distribution W1(t) and the interference beam excitation distribution W2(t) calculated by the excitation distribution calculation unit (13) and outputs a synthesized excitation distribution E(t). A phase control unit (30) controls the phase of a carrier wave imparted to the multiple element antennas (3-1) to (3-K) in accordance with the synthesized excitation distribution E(t) outputted from the excitation distribution synthesis unit (25).

Inventors:
KURIYAMA, Tasuku (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
FUKASAWA, Toru (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2017/001363
Publication Date:
July 26, 2018
Filing Date:
January 17, 2017
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H04B7/10; H01Q3/26; H01Q25/02
Foreign References:
JP6042045B12016-12-14
JP2013093665A2013-05-16
JP2015177494A2015-10-05
JP2014155050A2014-08-25
Other References:
TASUKU KURIYAMA ET AL.: "A Study of Limited Communication Area for Directional Modulation Using Active Phased Array Antenna with Sum- Difference pattern combining method", IEICE TECHNICAL REPORT 2017, vol. 116, no. 397, 12 January 2017 (2017-01-12), pages 135 - 140
TASUKU KURIYAMA ET AL., PROCEEDINGS OF THE 2016 IEICE COMMUNICATIONS SOCIETY CONFERENCE 1, 6 September 2016 (2016-09-06), pages 130
DING YUAN ET AL.: "A far-feld pattern separation approach for the synthesis of directional modulation transmitter arrays", 2014 XXXITH URSIGENERAL ASSEMBLY AND SCIENTIFIC SYMPOSIUM (URSI GASS), 16 August 2014 (2014-08-16), pages 1 - 4, XP032663682
DING YUAN ET AL.: "Directional modulation far- field pattern separation synthesis approach", IET MICROWAVES, ANTENNAS & PROPAGATION, vol. 9, no. 1, 9 January 2015 (2015-01-09), pages 41 - 48, XP006050755
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (Akasaka Sanno Center Bldg. 5F, 12-4 Nagata-cho 2-chome, Chiyoda-k, Tokyo 14, 〒1000014, JP)
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