Millimeter-wave high-gain steerable reflect array-feeding array antenna in a wireless local area networks
First Claim
1. A reflect array-feeding array (RA-FA) antenna, the RA-FA antenna comprising:
- a reflect array base comprising a plurality of reflecting elements with a phase shift distribution to reflect an incident beam to generate a reflected beam having a narrower beamwidth in an elevation plane and a same beamwidth in an azimuth plane; and
a feeding array comprising a phased antenna array with a beam-steering ability to direct the incident beam at the reflecting elements, wherein each reflecting element of the plurality of reflecting elements is configured to produce a path difference of the incident beam to generate a reflected beam having a narrower beamwidth in the elevation plane, wherein an elevation displacement (x) of the reflecting element from a focal point of the RA-FA determines a phase shift the reflecting element is configured to produce in the path difference of the incident beam.
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Accused Products
Abstract
A reflect array-feeding array (RA-FA) antenna is disclosed. The RA-FA antenna comprising: a reflect array base comprising a plurality of reflecting elements with a phase shift distribution to reflect an incident beam to generate a reflected beam having a narrower beamwidth in an elevation plane and a same beamwidth in an azimuth plane, and a feeding array comprising a phased antenna array with a beam-steering ability to direct the incident beam at the reflecting elements. The reflecting elements may be configured in a pattern with rows and columns and reflecting elements along rows have a same phase shift, and reflecting elements along columns have phase shifts to narrow the incident beam to form the reflected beam narrower in the elevation plane.
7 Citations
18 Claims
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1. A reflect array-feeding array (RA-FA) antenna, the RA-FA antenna comprising:
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a reflect array base comprising a plurality of reflecting elements with a phase shift distribution to reflect an incident beam to generate a reflected beam having a narrower beamwidth in an elevation plane and a same beamwidth in an azimuth plane; and a feeding array comprising a phased antenna array with a beam-steering ability to direct the incident beam at the reflecting elements, wherein each reflecting element of the plurality of reflecting elements is configured to produce a path difference of the incident beam to generate a reflected beam having a narrower beamwidth in the elevation plane, wherein an elevation displacement (x) of the reflecting element from a focal point of the RA-FA determines a phase shift the reflecting element is configured to produce in the path difference of the incident beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method performed by a reflect array-feeding array (RA-FA) antenna, the method comprising:
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directing an incident beam at a plurality of reflecting elements by a feeding array comprising a phased antenna array with a beamsteering ability; reflecting the incident beam to genenerate a reflected beam having a narrower beamwidth in an elevation plane and a same beamwidth in an azimuth plane by a reflect array base comprising the reflecting elements; each reflecting elements of the plurality of elements in a same row reflecting e incident beam to generate the reflected beam with a same phase shift; and each reflecting elements of the plurality of elements in a same column reflecting the incident beam to generate the incident beam having a narrower beamwidth in the elevation plane. - View Dependent Claims (16, 17, 18)
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Specification