Adaptive beam forming antenna system using a tunable...

Details Adaptive beam forming antenna system using a tunable... Adaptive beam forming antenna system using a tunable...

2007-07-17

2007-07-17

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Antenna components

C343S7000MS

Reexamination Certificate

active

10844104

ABSTRACT:
A method of and apparatus for beam steering. A feed horn is arranged so that the feed horn illuminates a tunable impedance surface comprising a plurality of individually tunable resonator cells, each resonator element having a reactance tunable by a tuning element associated therewith. The tuning elements associated with the tunable impedance surface are adjusted so that the resonances of the individually tunable resonator cells are varied in a sequence and the resonances of the individually tunable resonator cells are set to values which improve transmission of information via the tunable impedance surface and the feed horn.

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