Antenna assemblies with tapered loop antenna elements

• US 8,994,600 B2
• Filed: 02/05/2013
• Issued: 03/31/2015
• Est. Priority Date: 12/05/2007
• Status: Active Grant

• Current Assignee: Antennas Direct, Inc.
• Original Assignee: Antennas Direct, Inc.
• Inventors: Schneider, Richard E., Ross, John Edwin III
• Primary Examiner(s): PHAN, THO GIA
• Application Number:
  US13/759,750
• Publication Number:
  US 20130162487A1
• Time in Patent Office: 784 Days
• Field of Search: 343/741, 343/742, 343/795, 343/833, 343/834, 343/866, 343/867
• US Class Current: 343/741
• CPC Class Codes: H01Q 19/10 using reflecting surfaces
• CPC Class Codes: H01Q 21/30 Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Abstract

According to various aspects, exemplary embodiments are provided of antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes one or more tapered loop antenna elements.

Claims

1. An antenna assembly operable for receiving high definition television signals, the antenna assembly comprising:

at least one tapered loop antenna element configured to be operable for receiving UHF high definition television signals;

at least one reflector element spaced-apart from the tapered loop antenna element for reflecting electromagnetic waves generally towards the tapered loop antenna element, the reflector element including a grill or mesh surface and at least one perimeter flange extending outwardly relative to the grill or mesh surface; and

a printed circuit board having fastener holes,

wherein the tapered loop antenna element includes spaced-apart end portions having fastener holes; and

wherein the printed circuit board is attached to the tapered loop antenna element by mechanical fasteners inserted through the fastener holes of the printed circuit board that are aligned with the fastener holes of the spaced-apart end portions.

2. The antenna assembly of claim 1, wherein:

the at least one tapered loop antenna element comprises two tapered loop antenna elements positioned generally side-by-side in a generally figure eight configuration;

each said tapered loop antenna element includes spaced-apart end portions defining an gap that is maintained between the spaced-apart end portions of each said tapered loop antenna element.

3. The antenna assembly of claim 1, wherein the at least one perimeter flange comprises at least two perimeter flanges extending outwardly relative to the grill or mesh surface.

4. The antenna assembly of claim 1, wherein the grill or mesh surface of the reflector element is a grill surface that defines a substantially planar surface that is substantially parallel with the tapered loop antenna element.

5. The antenna assembly of claim 1, wherein the grill or mesh surface of the reflector element is a mesh surface that defines a substantially planar surface that is substantially parallel with the tapered loop antenna element.

6. The antenna assembly of claim 1, wherein the tapered loop antenna element includes:

a generally annular shape with an opening;

spaced-apart end portions defining an open slot extending at least partially between the spaced-apart end portions; and

the tapered loop antenna element increases in width from the spaced-apart end portions to a wider portion.

7. The antenna assembly of claim 1, wherein the tapered loop antenna element is flat with a generally constant or uniform thickness and/or stamped from sheet metal.

8. The antenna assembly of claim 1, wherein the fastener holes of the spaced-apart end portions are in a pattern corresponding to the fastener holes of the printed circuit board.

9. An antenna assembly operable for receiving high definition television signals, the antenna assembly comprising:

at least two antenna elements positioned generally side-by-side in a generally figure eight configuration and configured to be operable for receiving UHF high definition television signals;

at least one reflector element spaced-apart from the antenna elements for reflecting electromagnetic waves generally towards the antenna elements, the reflector element including a grill or mesh surface and at least one perimeter flange extending outwardly relative to the grill or mesh surface; and

a printed circuit board having fastener holes;

wherein each said antenna element includes spaced-apart end portions having fastener holes; and

wherein the printed circuit board is attached to the antenna elements by mechanical fasteners inserted through the fastener holes of the printed circuit board that are aligned with the fastener holes of the spaced-apart end portions of the antenna elements.

10. The antenna assembly of claim 9, wherein:

the grill or mesh surface of the reflector element is a grill surface that defines a substantially planar surface that is substantially parallel with the antenna elements; and

the at least one perimeter flange comprises at least two perimeter flanges extending outwardly relative to the substantially planar surface defined by the grill surface.

11. The antenna assembly of claim 9, wherein:

the grill or mesh surface of the reflector element is a mesh surface that defines a substantially planar surface that is substantially parallel with the antenna elements; and

the at least one perimeter flange comprises at least two perimeter flanges extending outwardly relative to the substantially planar surface defined by the mesh surface.

12. The antenna assembly of claim 9, wherein:

each said antenna element includes spaced-apart end portions defining an gap that is maintained between the spaced-apart end portions of each said antenna element; and

each said antenna element increases in width from the spaced-apart end portions to a wider portion.

13. The antenna assembly of claim 9, wherein each said antenna elements is flat with a generally constant or uniform thickness and/or stamped from sheet metal.

14. The antenna assembly of claim 9, wherein the fastener holes of the spaced-apart end portions of each said antenna element are in a pattern corresponding to the fastener holes of the printed circuit board.

15. An antenna assembly operable for receiving high definition television signals, the antenna assembly comprising:

at least one antenna element configured to be operable for receiving UHF high definition television signals;

at least one reflector element spaced-apart from the antenna element for reflecting electromagnetic waves generally towards the antenna element, the reflector element including a grill or mesh surface and at least one perimeter flange extending outwardly relative to the grill or mesh surface; and

a printed circuit board having fastener holes;

wherein each said antenna element includes spaced-apart end portions having fastener holes; and

wherein the printed circuit board is attached to the antenna elements by mechanical fasteners inserted through the fastener holes of the printed circuit board that are aligned with the fastener holes of the spaced-apart end portions of the antenna elements.

16. The antenna assembly of claim 15, wherein:

the grill or mesh surface of the reflector element defines a substantially planar surface that is substantially parallel with the antenna element; and

the at least one perimeter flange comprises at least two perimeter flanges extending outwardly relative to the substantially planar surface defined by the grill surface.

17. The antenna assembly of claim 16, wherein the at least one antenna element comprises at least two antenna elements positioned generally side-by-side in a generally figure eight configuration.

18. The antenna assembly of claim 17, wherein each said antenna element increases in width from narrower spaced-apart end portions to a wider portion.

19. The antenna assembly of claim 18, wherein each said antenna element is flat with a generally constant or uniform thickness and/or stamped from sheet metal.

20. The antenna assembly of claim 19, wherein the fastener holes of the spaced-apart end portions of each said antenna element are in a pattern corresponding to the fastener holes of the printed circuit board.