Title:
POWER FEEDER FOR MULTISOURCE AND MULTIBEAM ANTENNAS
Document Type and Number:
Japanese Patent JPH09116334
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a feeder for a multi-source semi-active antenna employing multi-beam. SOLUTION: The feeder is made up of a) a non-orthogonal beam generating device 65 to generate Na-sets of output signals by dividing Nb-sets of beam input signals and combining them, b) Na-sets of amplifier modules 64, and c) an orthogonal output power splitter 63 arranged between the amplifier modules 64 and Ne-sets of radiation elements 61. Then the numerals Nb, Na, Ne are selected under the condition of Nb<=Na<=Ne, and the distribution of the Nb-sets of beam signals at the input of the power slitter 63 is converted into the designated output distribution of the Nb-sets of beam signals by the orthogonal conversion function of the power splitter 63. Furthermore, the amplitude of each of the Na-sets of the signals is equal to that of each of the Nb-sets of beams. Moreover, the phase of the Na-sets of the signals satisfies a condition that a scalar product of each pair of Nb-sets of exciting vectors at the input of the power slitter 63 is equal to each other and a condition that a scalar product of each pair of corresponding Nb-sets of output exciting vectors is equal to each other.
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Inventors:
ANTOWAN ROIDERERU
SHIMON JIYON SUTEIRURAN
SHIMON JIYON SUTEIRURAN
Application Number:
JP10602396A
Publication Date:
May 02, 1997
Filing Date:
March 21, 1996
Export Citation:
Assignee:
EUROP AGENCE SPATIALE
International Classes:
H01P5/16; H01Q1/28; H01Q13/06; H01Q23/00; H01Q25/00; H01Q3/40; (IPC1-7): H01Q25/00; H01P5/16; H01Q3/40; H01Q13/06; H01Q23/00
Attorney, Agent or Firm:
Eiji Saegusa (2 others)