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US 7,071,890 B2Granted
Reflector
AssigneeNational Institute of Information and Communications Technology, Incorporated Administrative Agency
InventorsMasato Tanaka, Kyouichi Iigusa, Takashi Ohira
Life of this patent
Estimating the term…
Abstract
A reflector includes a pair or plural pairs of array antennas. Each array antenna is formed of an arrangement of a plurality of antenna elements formed on a surface of a waveguide. The array antennas are placed parallel to each other. Both ends of each array antenna pair are connected through a pair of waveguides. Information adding devices are inserted in the waveguides.
Claims15
A reflector comprising:
- a first array antenna that is formed of an arrangement of a plurality of first antenna elements;
- a second array antenna that is placed approximately parallel with said first array antenna and formed of an arrangement of a plurality of second antenna elements;
- a first propagation path that connects one end of said first array antenna and one end of said second array antenna to propagate an electromagnetic wave;
- and
- a second propagation path that connects the other end of said first array antenna and the other end of said second array antenna to propagate an electromagnetic wave.
2 more elements
A reflector comprising:
- a plurality of array antenna pairs each comprising first and second array antennas arranged approximately parallel,
- said first and second array antennas of each said array antenna pair comprising a plurality of first and second antenna elements, respectively;
- a plurality of first propagation paths that respectively connect one-side ends of said first and second array antennas of said plurality of array antenna pairs to propagate electromagnetic waves;
- and
- a plurality of second propagation paths that respectively connect the other-side ends of said first and second array antennas of said plurality of array antenna pairs to propagate electromagnetic waves.
2 more elements
Dependencies are inferred from the claim text.