Title:
ANTENNA DEVICE AND ANTENNA EXCITATION METHOD
Document Type and Number:
Japanese Patent JP2015177494
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce a sidelobe by reducing quantization error of a digital phase shifter.SOLUTION: An antenna device includes: a combination vector calculation part 8 and a vector comparison part 9. In the combination vector calculation part 8, a plurality of combinations of excitation phases βas many as switching times are selected out of excitation phases which can be set for phase shifters 2-1 to 2-N and for each combination of the excitation phases β, a combination vector vof phase vectors indicated by the excitation phases βas many as the switching times is calculated. The vector comparison part 9 selects the combination vector vthat is most correlated with an excitation vector Vindicating an excitation amplitude phase that is set by an excitation distribution setting part 6, from among the combination vectors vcalculated for each combination by the combination vector calculation part 8.
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Inventors:
MATSUKI MAKOTO
GOTO JUN
KIHIRA KAZUNARI
TAKAHASHI TORU
GOTO JUN
KIHIRA KAZUNARI
TAKAHASHI TORU
Application Number:
JP2014054518A
Publication Date:
October 05, 2015
Filing Date:
March 18, 2014
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01Q3/38; G01S7/02; H04B7/10
Domestic Patent References:
| JP2013219742A | 2013-10-24 | |||
| JP2012134643A | 2012-07-12 | |||
| JPH09148836A | 1997-06-06 |
Other References:
中西孝行，紀平一成，高橋 徹，小西善彦: "時間変調アレーアンテナにおける不要高調波抑圧のための励振分布切換アルゴリズム", ２０１２年電子情報通信学会通信ソサイエティ大会 通信講演論文集１, vol. 通信講演論文集１, JPN6017022390, 28 August 2012 (2012-08-28), JP, pages 1 - 182, ISSN: 0003581213
Attorney, Agent or Firm:
Hideaki Tazawa
Hamada Hatsune
Kume Teruyo
Hideo Kawamura
Hamada Hatsune
Kume Teruyo
Hideo Kawamura