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Patent Searching and Data


Title:
PHASE-SHIFTER AND PHASED-ARRAY ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP2004282150
Kind Code:
A
Abstract:

To realize the improvement of miniaturization and array characteristics by making a redundant delay line unnecessitated .

The phased-array antenna device is composed of a large number of antenna elements 2, a large number of antenna lines 3 for connecting the opposing antenna elements 2 with a high frequency signal processing part 5, and a capacitance adjusting part 4 arranged along each antenna line 3 and constituting a varicap on the antenna lines 3. Each capacitance adjusting part 4 is respectively arranged along each antenna line 3. It is composed of a plurality of capacitance variable micro machine capacitors 10 having a movable electrode 11 in which the fixed end 12 is connected with the ground 8 and the free end 13 is arranged to oppose to the antenna line 3, which is oppositely arranged so as to execute capacitance connection by making the antenna line 3 as an opposing electrode, and at the same time which varies the connection capacitance by being driven in the directions of contacting and separating.


Inventors:
HIRABAYASHI TAKAYUKI
Application Number:
JP2003067024A
Publication Date:
October 07, 2004
Filing Date:
March 12, 2003
Export Citation:
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Assignee:
SONY CORP
International Classes:
H01G5/013; H01P1/18; H01P5/04; H01Q3/32; H01G4/33; (IPC1-7): H01P1/18; H01G5/013; H01P5/04; H01Q3/32
Attorney, Agent or Firm:
Akira Koike
Eiichi Tamura
Seiji Iga