Antenna system and apparatus

• US 20070085743A1
• Filed: 10/18/2005
• Published: 04/19/2007
• Est. Priority Date: 10/18/2005
• Status: Active Grant

• Current Assignee: Intellectual Ventures Holding 81 LLC (Intellectual Ventures LLC)
• Original Assignee: Pulse-Link Incorporated
• Inventors: Eberhardt, Paul, Salazar, Vince
• Granted Patent: US 7,358,901 B2
• Time in Patent Office: Days
• US Class Current: 343/700.MS
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/48 Earthing means; Earth screens; Counterpoises
• CPC Class Codes: H01Q 5/50 Feeding or matching arrangements for broad-band or multi-band operation
• CPC Class Codes: H01Q 9/28 Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines waveguide horns or mouths H01Q13/00; slot antennas H01Q13/00
• CPC Class Codes: H01Q 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

An antenna design is provided. In one embodiment, the antenna is a planar element with a radiating element containing an elliptical curved portion connected to two curved regions, the curved regions meeting at a geometric construct. Another embodiment provides an antenna constructed with intersecting planar elements. A third embodiment is an antenna that is a solid of revolution of a planar element. Some antenna embodiments include ground plane elements to shape the radiation patterns. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

Claims

1. An antenna apparatus, comprising:

a planar radiating element having a lower elliptical curve connected to a right and a left curve, the right and left curves joined at a geometric construct and at a ground plane, with the ground plane substantially U-shaped.

2. The apparatus of claim 1, wherein the geometric construct is selected from a group consisting of a line, a curve, and a point.

3. The apparatus of claim 1, wherein the left and the right curves represent functions selected from a group consisting of:

elliptical functions, conical functions, exponential functions, fractal functions, and polynomial functions.

4. The apparatus of claim 1, wherein the ground plane has curved edges.

5. The apparatus of claim 1, further comprising a crossbar element attached to the ground plane.

6. The apparatus of claim 5, wherein the crossbar element is selected from a group consisting of:

a crossbar element having a linear boundary, and a crossbar element having a curved boundary.

7. The apparatus of claim 5, further comprising a feed line attached to the planar radiating element and the ground plane.

8. The apparatus of claim 7, wherein the crossbar element is positioned to minimize reflection along the feed line.

9. The apparatus of claim 1, wherein the ground plane is shaped similarly to a capital letter A.

10. An antenna apparatus, comprising:

a first planar radiating element having a lower elliptical curve connected to a right and a left curve, the right and left curves joined at a geometric construct;

a second planar radiating element having a lower elliptical curve connected to a right and a left curve, the right and left curves joined at the geometric construct; and

a ground plane, the ground plane substantially U-shaped in both planes.

11. The apparatus of claim 10, wherein the geometrical construct is selected from a group consisting of:

a substantially flat plane surface, a curved surface, a pair of intersecting substantially flat lines, a pair of intersecting curved lines, and a point.

12. The apparatus of claim 10, wherein the left and the right curves of the first and second planar radiating elements represent functions selected from a group consisting of:

elliptical functions, conical functions, exponential functions, fractal functions, and polynomial functions.

13. The apparatus of claim 10, wherein the ground plane has curved edges.

14. The apparatus of claim 10, further comprising a crossbar element attached to the ground plane.

15. The apparatus of claim 14, wherein the crossbar element is selected from a group consisting of:

an intersecting pair of elements with linear boundaries, and an intersecting pair of elements with curved boundaries.

16. The apparatus of claim 10 further comprising a feed line attached to the first and second planar radiating elements and the ground plane.

17. The apparatus of claim 16, wherein the crossbar element is positioned to minimize reflection along the feed line.

18. The apparatus of claim 10, wherein the ground plane is shaped similarly to a pair of intersecting capital letter “

A”

s.

19. An antenna apparatus, comprising:

a solid radiating element described by rotating a planar element about an axis, the planar element having a lower elliptical curve connected to a right and a left curve, the right and left curves joined at a geometric construct.

20. The apparatus of claim 19, further comprising a solid ground plane element described by rotating a planar element about an axis, the planar element substantially U-shaped.

21. The apparatus of claim 20, wherein the geometrical construct is selected from a group consisting of:

a substantially flat plane surface, a curved surface, a pair of intersecting substantially flat lines, a pair of intersecting curved lines, and a point.

22. The apparatus of claim 20, further comprising a feed line connected to the solid radiating element and the solid ground plane element.

23. The apparatus of claim 22, further comprising a crossbar element attached to the ground plane, the crossbar element positioned to minimize reflection on the feed line.

24. The apparatus of claim 19, wherein the left and the right curves represent functions selected from a group consisting of:

elliptical functions, conical functions, exponential functions, fractal functions, and polynomial functions.