Back to results
US 6,888,510 B2Granted
Compact, low profile, circular polarization cubic antenna
AssigneeSkyCross, Inc.
InventorsYoung-Min Jo, Michael H. Thursby, Frank M. Caimi, Kerry L. Greer, Mark D. Nelson, John C. Farrar
Life of this patent
Estimating the term…
Abstract
An antenna providing circular polarization for received and transmitted signals. The antenna comprises a vertical conductive surfaces oriented to form a closed structure and horizontal conductive surfaces forming a top face of the closed structure. Connection of selected vertical panels to a feed and ground, causes current flow in the vertical and horizontal surfaces that results in a circular polarized signal.
Claims32
An antenna comprising:
- a plurality of vertical conductive surfaces each having a top edge, the plurality of vertical surfaces oriented to form side surfaces of an upright structure with a first gap defined between adjacent vertical surfaces;
- a plurality of horizontal conductive surfaces forming a top surface of the upright structure, the plurality of horizontal surfaces oriented to form a second gap between adjacent horizontal surfaces;
- third gaps formed between a top edge of each one of the plurality of vertical surfaces and an adjacent one of the plurality of horizontal surfaces;
- a first conductive bridge electrically connecting a first and a second horizontal surface of the plurality of horizontal surfaces;
- a second conductive bridge electrically connecting a third and a fourth horizontal surface of the plurality of horizontal surfaces;
- a first vertical surface of the plurality of vertical surfaces for connecting to a signal feed for the antenna;
- and
- a second and a third vertical surface of the plurality of vertical surfaces for connecting to ground.
5 more elements
An antenna comprising:
- a first, a second, a third and a fourth conductive surface each vertically oriented to form a side face of a rectangular regular polyhedron with first gaps defined between adjacent surfaces, each one of the first, second, third and fourth surfaces comprising a top edge and a bottom edge;
- a fifth, a sixth, a seventh and an eighth triangular conductive surface each having a base and an apex and each disposed in a plane forming a top face of the polyhedron with the apex directed toward a center region of the top face, wherein second gaps are formed between adjacent ones of the fifth, sixth, seventh and eighth triangular surfaces;
- wherein third gaps are formed between the top edge of each one of the first, second, third and fourth surfaces and a proximate base of one of the fifth, sixth, seventh and eighth triangular surfaces;
- a first conductive bridge electrically connecting a fifth and a sixth triangular surface, wherein the fifth and the sixth triangular surfaces are opposingly directed on the top face;
- a second conductive bridge electrically connecting a seventh and an eighth triangular surface, wherein the seventh and the eighth triangular surfaces are opposingly directed on the top face;
- a bottom edge of the first surface for connecting to a signal feed;
- and
- a bottom edge of the second and the third surfaces for connecting to ground.
5 more elements
An antenna comprising:
- a first, a second, a third and a fourth conductive surface disposed on a flexible dielectric substrate having first gaps defined between adjacent surfaces, each one of the first, second, third and fourth surfaces comprising a top edge and a bottom edge;
- the substrate forming a cylinder with the first, second, third and fourth surfaces disposed vertically thereon;
- a fifth, a sixth, a seventh and an eighth triangular conductive surface each having a base and an apex and each disposed in a plane forming a top surface of the cylinder with each apex directed toward a center region of the top surface, wherein second gaps are defined between adjacent ones of the fifth, sixth, seventh and eighth triangular surfaces;
- wherein third gaps are formed between the top edge of each one of the first, second, third and fourth surfaces and a proximate base of one of the fifth, sixth, seventh and eighth triangular surfaces;
- a first conductive bridge electrically connecting a fifth and a sixth triangular surface, wherein the fifth and the sixth triangular surfaces are opposingly disposed on the top surface;
- a second conductive bridge electrically connecting a seventh and an eighth triangular surface, wherein the seventh and the eighth triangular surfaces are opposingly disposed on the top surface;
- a bottom edge of the first surface for connecting to a signal feed;
- and
- a bottom edge of the second and the third surfaces for connecting to ground.
6 more elements
Dependencies are inferred from the claim text.