Title:
DIGITAL BEAM FORMING ANTENNA SYSTEM
Document Type and Number:
Japanese Patent JPH1168443
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To obtain a digital beam forming antenna capable of accurately or simply correcting the amplitude/phase of an array antenna element in real time simultaneously with the formation of a beam any time even when there are a large number of antenna elements. SOLUTION: An antenna system has an an element field vector revolution(REV) computing element 9 for entering beam scanning phase data obtained by multiplying respective digital signals of respective element antennas 1 by respective complex weighting values from M beam formers 13 to 15 for forming required beams, and for calculating correction values for complex weighting of amplitude/phase values to be applied to respective digital signals. The system also has a feedback loop for multiplying these correction values by respective digital signals outputted from respective element antennas 1.
Inventors:
YONEZAWA RUMIKO
KONISHI YOSHIHIKO
CHIBA ISAMU
KATAKI TAKASHI
KONISHI YOSHIHIKO
CHIBA ISAMU
KATAKI TAKASHI
Application Number:
JP21672397A
Publication Date:
March 09, 1999
Filing Date:
August 11, 1997
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01Q3/26; (IPC1-7): H01Q3/26
Attorney, Agent or Firm:
Mamoru Takada (1 person outside)
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