Antenna assemblies with tapered loop antenna elements

• US 10,615,501 B2
• Filed: 08/24/2017
• Issued: 04/07/2020
• Est. Priority Date: 12/05/2007
• Status: Active Grant

• Current Assignee: Antennas Direct, Inc.
• Original Assignee: Antennas Direct, Inc.
• Inventors: Schneider, Richard E., Ross, III, John Edwin
• Primary Examiner(s): Munoz, Daniel
• Assistant Examiner(s): Patel, Amal
• Application Number:
  US15/685,749
• Publication Number:
  US 20170352956A1
• Time in Patent Office: 957 Days
• CPC Class Codes: H01Q 1/1207 for fastening a rigid aerial element
• CPC Class Codes: H01Q 1/1271 for mounting on windscreens
• CPC Class Codes: H01Q 19/10 using reflecting surfaces
• 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
• CPC Class Codes: H01Q 7/02 Collapsible antennas; Retractable antennas

Abstract

According to various aspects, exemplary embodiments are provided of antenna assemblies. In an exemplary embodiment, an antenna assembly generally includes at least one antenna element configured to be operable for receiving high definition television signals. The antenna assembly may also include at least one reflector spaced-apart from the antenna element that is configured to be operable for reflecting electromagnetic waves generally towards the antenna element.

Claims

1. An antenna assembly comprising:

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

a printed circuit board having one or more fastener holes;

wherein the at least one antenna element includes one or more fastener holes; and

wherein the printed circuit board is attached to the at least one antenna element by one or more mechanical fasteners, each said individual mechanical fastener inserted through both a corresponding one of the one or more fastener holes of the at least one antenna element and a corresponding one of the one or more fastener holes of the printed circuit board aligned with the one or more fastener holes of the at least one antenna element;

wherein;

the at least one antenna element includes a first antenna element and a second antenna element;

each said first and second antenna element includes first and second portions that are generally symmetric such that the first portion is a mirror-image of the second portion;

each said first and second antenna element includes a generally annular shape with an opening;

the first and second antenna elements positioned in a mirror-image relationship generally side-by-side in a generally figure eight configuration having a closed shape; and

the one or more fastener holes of the first antenna element overlap and are aligned with corresponding ones of the one or more fastener holes of the second antenna element, such that each said individual mechanical fastener is inserted through corresponding aligned fastener holes of each of the first and second antenna elements.

2. The antenna assembly of claim 1, wherein the printed circuit board includes a balun.

3. The antenna assembly of claim 1, further comprising at least one reflector spaced-apart from the antenna element and configured to be operable for reflecting electromagnetic waves generally towards the antenna element, and wherein the reflector includes a substantially planar surface substantially parallel and spaced-apart from the antenna element, and wherein the reflector includes at least one sidewall portion and/or at least one perimeter flange that extends outwardly relative to the substantially planar surface.

4. The antenna assembly of claim 1, further comprising at least one reflector spaced-apart from the antenna element and configured to be operable for reflecting electromagnetic waves generally towards the antenna element, and wherein the reflector includes a substantially planar surface substantially parallel and spaced-apart from the antenna element, and wherein the substantially planar surface comprises a grill or mesh surface.

5. The antenna assembly of claim 1, further comprising at least one reflector spaced-apart from the antenna element and configured to be operable for reflecting electromagnetic waves generally towards the antenna element, and wherein the reflector includes a substantially planar surface substantially parallel and spaced-apart from the antenna element, and wherein the reflector includes sidewall portions along perimeter edges defining a perimeter of the substantially planar surface and substantially perpendicular to the substantially planar surface, whereby the sidewall portions are operable for increasing an electrical size of the reflector and for improving impedance matching of the antenna element.

6. The antenna assembly of claim 1, further comprising at least one reflector spaced-apart from the antenna element and configured to be operable for reflecting electromagnetic waves generally towards the antenna element, and wherein the reflector includes a grill or mesh surface, and wherein the reflector includes at least one sidewall portion and/or at least one perimeter flange that extends outwardly relative to the grill or mesh surface.

7. The antenna assembly of claim 1, wherein the antenna assembly is configured for receiving high definition television signals and communicating the received high definition television signals to a television.

8. The antenna assembly of claim 1, wherein each said individual mechanical fastener is a single screw.

9. The antenna assembly of claim 1, wherein each said first and second antenna element includes the generally annular shape with the opening having a substantially closed shape.

10. The antenna assembly of claim 1, wherein the first and second antenna elements include first and second tapered loop antenna elements, respectively.

11. A high definition television antenna assembly configured for receiving high definition television signals and communicating the received high definition television signals to a television, the antenna assembly comprising at least one antenna element including one or more fastener holes and a printed circuit board including one or more fastener holes,

wherein the printed circuit board is attached to the at least one antenna element by one or more mechanical fasteners, each said individual mechanical fastener inserted through both a corresponding one of the one or more fastener holes of the at least one antenna element and a corresponding one of the one or more fastener holes of the printed circuit board aligned with the one or more fastener holes of the at least one antenna element;

wherein;

the at least one antenna element includes a first antenna element and a second antenna element;

each said first and second antenna element includes first and second portions that are generally symmetric such that the first portion is a mirror-image of the second portion;

each said first and second antenna element includes a generally annular shape with an opening;

the first and second antenna elements in a mirror-image relationship generally side-by-side in a generally figure eight configuration having a closed shape; and

the one or more fastener holes of the first and second antenna elements are aligned with corresponding ones of the one or more fastener holes of the printed circuit board, such that each said individual mechanical fastener is inserted through corresponding aligned fastener holes of the first and second antenna elements and the printed circuit board.

12. The antenna assembly of claim 11, wherein the printed circuit board includes a balun.

13. The antenna assembly of claim 11, wherein the first and second antenna elements include at least two spaced-apart portions each including at least one of the one or more fastener holes that are alignable with the one or more fastener holes of the printed circuit board, and wherein each said individual mechanical fastener is a single screw inserted through both a corresponding fastener hole of the first and second antenna elements and an aligned corresponding fastener hole of the printed circuit board.

14. The antenna assembly of claim 11, wherein each of the first and second portions of the first and second antenna elements that are generally symmetric extends from a bottom of the corresponding one of the first and second antenna elements to a top of the corresponding one of the first or second antenna elements.