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US 6,788,258 B2Granted
Partially shared antenna aperture
AssigneeARC Wireless Solutions, Inc.
InventorSteven C. Olson
Life of this patent
Estimating the term…
Abstract
An antenna system includes a ground plane, an aperture array of patch radiating elements and a feed structure. The feed structure has a first and second beam forming networks that each couple to selected radiating elements to form first and second antenna arrays. At least one and less than all of the radiating elements are shared by the first and second antenna arrays.
Claims9
A partially shared aperture antenna system comprising:
- an aperture array of radiating elements,
- a first beam forming network coupled at a first polarization angle to a selected first group of said radiating elements to form a first antenna array having a first polarization, and
- a second beam forming network coupled at a second polarization angle, transverse to said first polarization angle, to a selected second group of said radiating elements, said first and second groups having at least one of said radiating element in common and less than all said radiating elements in common, said second beam forming network and said second group of said elements forming a second antenna array having a second polarization.
A partially shared aperture antenna system comprising:
- a substantially planar ground plane,
- an aperture array of air-loaded microstrip stacked patch radiating elements on said ground plane, including first, second and third rows by first, second and third columns of said radiating elements, each said radiating element including a driver patch spaced from said ground plane and a parasitic patch spaced from said driver patch opposite said ground plane,
- an air-loaded microstrip transmission line first beam forming network spaced from said ground plane and substantially planar with said driver patches, said first beam forming network connecting at a 45 degree angle to said radiating elements of said first and second rows to form a first antenna array having a 45 degree polarization, and
- an air-loaded microstrip transmission line second beam forming network spaced from said ground plane and substantially planar with said driver patches, said first beam forming network connecting at a 135 degree angle to said radiating elements of said second and third rows to forming a second antenna array having a −45 degree polarization.
1 more element
Dependencies are inferred from the claim text.