REFLECTARRAY ANTENNA SYSTEM
First Claim
1. A reflectarray antenna system comprising:
- an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band;
a reflector comprising a reflectarray, the reflectarray comprising a plurality of reflectarray elements, each of the reflectarray elements comprising a dipole element, wherein the dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion, the plurality of reflectarray elements being configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.
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Accused Products
Abstract
One embodiment describes a reflectarray antenna system. The system includes an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band. The system also includes a reflector comprising a reflectarray. The reflectarray includes a plurality of reflectarray elements, where each of the reflectarray elements includes a dipole element. The dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion. The plurality of reflectarray elements can be configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam.
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Citations
20 Claims
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1. A reflectarray antenna system comprising:
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an antenna feed configured to at least one of transmit and receive a wireless signal occupying a frequency band; a reflector comprising a reflectarray, the reflectarray comprising a plurality of reflectarray elements, each of the reflectarray elements comprising a dipole element, wherein the dipole element of at least a portion of the plurality of reflectarray elements comprises a crossed-dipole portion and a looped-dipole portion, the plurality of reflectarray elements being configured to selectively phase-delay the wireless signal to provide the wireless signal as a coherent beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for providing dual-band wireless transmission via a reflectarray antenna system, the method comprising:
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one of transmitting and receiving a first wireless signal occupying a first frequency band between a first antenna feed and a reflector comprising a plurality of reflectarray elements selectively distributed on the reflector, the plurality of reflectarray elements having a geometry that is substantially transparent with respect to the first frequency band; and one of transmitting and receiving a second wireless signal occupying a second frequency band between a second antenna feed and the reflector, the geometry of the plurality of reflectarray elements providing selective phase-delay of the second wireless signal to provide a coherent beam associated with the second wireless signal. - View Dependent Claims (13, 14, 15, 16)
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17. A reflectarray antenna system comprising:
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a first antenna feed configured to at least one of transmit and receive a first wireless signal occupying a first frequency band; a second antenna feed configured to at least one of transmit and receive a second wireless signal occupying a second frequency band; and a reflector comprising a reflectarray and being configured to provide the first wireless signal and the second wireless signal as a first coherent beam and a second coherent beam, respectively, the reflectarray being configured to selectively phase-delay at least one of the first and second wireless signals to provide the respective at least one of the first and second coherent beams. - View Dependent Claims (18, 19, 20)
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Specification