HDTV antenna assemblies

• US 10,693,239 B2
• Filed: 11/08/2018
• Issued: 06/23/2020
• Est. Priority Date: 09/02/2015
• Status: Active Grant

• Current Assignee: Antennas Direct, Inc.
• Original Assignee: Antennas Direct, Inc.
• Inventors: Ross, III, John Edwin, Schneider, Richard E.
• Primary Examiner(s): Duong, Dieu Hien T
• Application Number:
  US16/184,594
• Publication Number:
  US 20190081401A1
• Time in Patent Office: 593 Days
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• 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 9/285 Planar dipole H01Q9/065 takes precedence; patch antenna H01Q9/0407

Abstract

Exemplary embodiments are disclosed of HDTV antenna assemblies. In an exemplary embodiment, a high definition television antenna assembly generally includes a first antenna element and a second antenna element. The first antenna element has a generally annular shape with an opening. The second antenna element includes first and second arms spaced apart from the first antenna element. The first and second arms extend at least partially along portions of the first antenna element. The first and second antenna elements may be electromagnetically coupled without a direct ohmic connection between the first and second antenna elements.

Claims

1. A high definition television antenna assembly configured to be operable for receiving VHF high definition television signals and UHF high definition television signals, the high definition television antenna assembly comprising:

a first antenna element having a generally annular shape with an opening and first and second end portions; and

a second antenna element including first and second arms spaced apart from the first antenna element and extending at least partially along portions of the first antenna element;

wherein the first and second antenna elements are substantially coplanar; and

wherein each of the first and second arms includes a bottom portion, an upwardly extending portion generally perpendicular to the bottom portion, a rounded end portion between the upwardly extending portion and a concave portion that extends from the rounded end portion generally under the first antenna element.

2. The high definition television antenna assembly of claim 1, further comprising a substrate, and wherein the first and second antenna elements are along a same side of the substrate.

3. The high definition television antenna assembly of claim 2, wherein:

the substrate is a flat or planar substrate; and

the first and second antenna elements are along a same side of the flat or planar substrate such that the first and second antenna elements are coplanar.

4. The high definition television antenna assembly of claim 1, further comprising a naturally tacky and/or self-adherent material operable for mounting the first and second antenna elements along a same side of a glass window without any additional adhesive needed between the glass window and the high definition television antenna assembly.

5. The high definition television antenna assembly of claim 1, wherein the first and second antenna elements are electromagnetically coupled without a direct ohmic connection between the first and second antenna elements.

6. The high definition television antenna assembly of claim 1, further comprising a substrate, and wherein:

the first and second antenna elements are along a same side of the substrate such that the first and second antenna elements are coplanar; and

the first and second antenna elements are electromagnetically coupled without a direct ohmic connection between the first and second antenna elements.

7. The high definition television antenna assembly of claim 1, wherein:

the first and second antenna elements cooperatively define a generally menorah shape configured to be operable for receiving VHF and UHF high definition television signals; and

/or

the first and second antenna elements cooperatively define a generally menorah shape in which the first antenna element represents a center starter candle and the first and second arms respectively represent our outer candles along each side of the center starter candle; and

/or

the high definition television antenna assembly is configured to be operable for receiving VHF high definition television signals from about 174 megahertz to about 216 megahertz with a voltage standing wave ratio of less than 3 (referenced to a 300 ohm line) and for receiving UHF high definition television signals from about 470 megahertz to about 698 megahertz with a voltage standing wave ratio of less than 2 (referenced to a 300 ohm line).

8. The high definition television antenna assembly of claim 1, further comprising a balun coupled to the first antenna element at an end of an open slot defined between the first and second end portions of the first antenna element.

9. The high definition television antenna assembly of claim 8, wherein:

the balun is a 75 to 300 Ohm balun;

the high definition television antenna assembly further comprises a 75 ohm coaxial input feed with a type F Female connector for feeding the first antenna element at 75 ohms; and

the type F Female connector is downward facing whereby the high definition television antenna assembly is positionable flush against a window.

10. The high definition television antenna assembly of claim 1, wherein the first antenna element comprising a tapered loop antenna element including generally circular inner and outer perimeter portions such that the annular shape of the first antenna element and opening are generally circular.

11. The antenna assembly of claim 1, wherein the second antenna element comprises a single piece element having a monolithic construction without any slot separating the first and second arms of the second antenna element.

12. The antenna assembly of claim 1, wherein:

the first and second arms are generally symmetric; and

the first arm is a mirror-image of the second arm.

13. A high definition television antenna assembly configured to be operable for receiving VHF high definition television signals and UHF high definition television signals, the high definition television antenna assembly comprising:

a first antenna element having a generally annular shape with an opening and first and second end portions; and

a second antenna element including first and second arms spaced apart from the first antenna element and extending at least partially along portions of the first antenna element;

wherein;

the first and second antenna elements are substantially coplanar;

the first and second arms are generally symmetric;

the first arm is a mirror-image of the second arm; and

each of the first and second arms includes a linear bottom portion, an upwardly extending linear portion generally perpendicular to the linear bottom portion, a rounded end portion between the upwardly extending linear portion and a concave portion that extends from the rounded end portion generally under the first antenna element.

14. A high definition television antenna assembly configured to be operable for receiving VHF high definition television signals and UHF high definition television signals, the high definition television antenna assembly comprising:

a first antenna element having a generally annular shape with an opening and first and second end portions;

a second antenna element including first and second arms spaced apart from the first antenna element and extending at least partially along portions of the first antenna element; and

a substrate, wherein the first and second antenna elements are along a same side of the substrate;

wherein each of the first and second arms includes a bottom portion, an upwardly extending portion generally perpendicular to the bottom portion, a rounded end portion between the upwardly extending portion and a concave portion that extends from the rounded end portion generally under the first antenna element.

15. The high definition television antenna assembly of claim 14, wherein:

the substrate is a flat or planar substrate; and

the first and second antenna elements are along a same side of the flat or planar substrate such that the first and second antenna elements are substantially coplanar.

16. The high definition television antenna assembly of claim 14, wherein the first and second antenna elements are electromagnetically coupled without a direct ohmic connection between the first and second antenna elements.

17. The high definition television antenna assembly of claim 14, wherein the substrate comprises a naturally tacky and/or self-adherent material operable for mounting the first and second antenna elements along a same side of a glass window without any additional adhesive needed between the glass window and the high definition television antenna assembly.

18. The high definition television antenna assembly of claim 14, wherein the second antenna element comprises a single piece element having a monolithic construction without any slot separating the first and second arms of the second antenna element.

19. The high definition television antenna assembly of claim 14, wherein:

the first and second arms are generally symmetric; and

the first arm is a mirror-image of the second arm.

20. An antenna assembly operable for receiving VHF and UHF high definition television signals, the antenna assembly comprising:

a plurality of antenna elements including;

a UHF tapered loop antenna element having a generally annular shape with an opening and first and second end portions; and

a VHF antenna element includes first and second arms spaced apart from the UHF tapered loop antenna element and extending at least partially along portions of the UHF tapered loop antenna element;

wherein the UHF tapered loop antenna element and the VHF antenna element are substantially coplanar; and

wherein;

the first and second arms are generally symmetric;

the first arm is a mirror-image of the second arm; and

each of the first and second arms includes a linear bottom portion, an upwardly extending linear portion generally perpendicular to the linear bottom portion, a rounded end portion between the upwardly extending linear portion and a concave portion that extends from the rounded end portion generally under the UHF tapered loop antenna element.

21. The antenna assembly of claim 20, further comprising a substrate, and wherein the UHF tapered loop antenna element and the VHF antenna element are along a same side of the substrate.

22. The antenna assembly of claim 21, wherein:

the substrate is a flat or planar substrate; and

the UHF tapered loop antenna element and the VHF antenna element are along a same side of the flat or planar substrate such that the UHF tapered loop antenna element and the VHF antenna element are coplanar.

23. The antenna assembly of claim 20, further comprising a naturally tacky and/or self-adherent material operable for mounting the UHF tapered loop antenna element and the VHF antenna element along a same side of a glass window without any additional adhesive needed between the glass window and the antenna assembly.

24. The antenna assembly of claim 20, wherein the UHF tapered loop antenna element and the VHF antenna element are electromagnetically coupled without a direct ohmic connection between the UHF tapered loop antenna element and the VHF antenna element.

25. The antenna assembly of claim 20, wherein:

the plurality of antenna elements cooperatively define a generally menorah shape configured to be operable for receiving VHF and UHF high definition television signals; and

/or

the plurality of antenna elements cooperatively define a generally menorah shape in which the UHF tapered loop antenna element represents a center starter candle and the first and second arms respectively represent four outer candles along each side of the center starter candle.

26. The antenna assembly of claim 20, further comprising:

a balun coupled to the UHF tapered loop antenna element at an end of an open slot defined between the first and second end portions of the UHF tapered loop antenna element; and

a coaxial input feed with a connector for feeding the UHF tapered loop antenna element, wherein the connector is downward facing whereby the antenna assembly is positionable flush against a window.