Title:
衛星及び地上システムの同時通信用アンテナシステム
Document Type and Number:
Japanese Patent JP2004535722
Kind Code:
A
Abstract:
An antenna system for receiving both circularly polarized electromagnetic signals and linearly polarized electromagnetic signals, the circularly polarize signals arriving at the antenna system from a direction normal or oblique to a major surface of the antenna system and the linearly polarized signals arriving at the planar antenna system from a direction acute to said major surface. The antenna system includes a high impedance surface and a plurality of antenna elements disposed on said high impedance surface, the plurality antenna elements arranged in a pattern on said surface such first selected ones of said antenna elements are responsive to circular polarization and second selected ones of said antenna elements are responsive to linear polarization.
Inventors:
Seaven Piper, Daniel, F.
Sue, Hui-pin
Schaffner, James, H.
Tangonan, Gregory, Elle.
Sue, Hui-pin
Schaffner, James, H.
Tangonan, Gregory, Elle.
Application Number:
JP2003513085A
Publication Date:
November 25, 2004
Filing Date:
July 11, 2002
Export Citation:
Assignee:
HRL LABORATORIES, LLC
International Classes:
H01Q9/44; H01Q13/08; H01Q15/00; H01Q21/24; H01Q21/26; (IPC1-7): H01Q21/24; H01Q9/44; H01Q13/08
Attorney, Agent or Firm:
Tatsuo Egami
Satoshi Nakamura
Satoshi Nakamura