Broadband antenna

Patent metadata

Field	Value
Publication number	US-11276941-B2
Application number	US-201716612768-A
Country	US
Kind code	B2
Filing date	May 12, 2017
Priority date	May 12, 2017
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

A single polarized radiator comprising a plurality of planar notch radiating elements arranged on a dielectric substrate. Each notch radiating element comprises: a metallized region on a first side of the dielectric substrate extending across the width of the notch radiating element from a forward edge of the notch radiating element to a rear edge of the notch radiating element, a tuning element in the metallized region adjacent to a feeding point of the notch radiating element, a notch extending from the tuning element to the forward edge of the notch radiating element thereby creating a notch profile, and a plurality of indentations in the metallized region along each side of the notch to extend the length of the notch profile.

First claim

The invention claimed is:

1. A single polarized radiator comprising a plurality of planar notch radiating elements arranged on a dielectric substrate, wherein each notch radiating element of the plurality of planar notch radiating elements comprises:
a metallized region on a first side of the dielectric substrate extending across a width of the notch radiating element from a forward edge of the notch radiating element to a rear edge of the notch radiating element;
a tuning element in the metallized region adjacent to a feeding point of the notch radiating element;
a notch extending from the tuning element to the forward edge of the notch radiating element thereby creating a notch profile; and
a plurality of indentations in the metallized region along each side of the notch to extend a length of the notch profile.

2. The single polarized radiator according to claim 1 , wherein the rear edge of each notch radiating element is connectable to a ground plane.

3. The single polarized radiator according to claim 1 , wherein the indentations are parallel to the rear edge of the notch radiating element.

4. The single polarized radiator according to claim 1 , wherein the indentations are evenly distributed along the length of the notch profile.

5. The single polarized radiator according to claim 1 , wherein the plurality of notch radiating elements share the same metallized region arranged on the dielectric substrate.

6. The single polarized radiator according to claim 1 , wherein a first edge element is provided adjacent to a first side the plurality of planar notch radiating elements, and a second edge element is provided adjacent to a second side, opposite to the first side, of the plurality of planar notch radiating elements, each edge element having an edge profile extending from the forward edge of an adjacent notch radiating element to the rear edge of the adjacent notch radiating element, and wherein at least one meandering section is provided in each edge profile.

7. The single polarized radiator according to claim 6 , wherein a first of the at least one meandering section is provided at a forward edge of each edge element.

8. The single polarized radiator according to claim 7 , wherein a second of the at least one meandering section is provided at a side edge of each edge element.

9. A single polarized radiator comprising a plurality of planar notch radiating elements arranged on a dielectric substrate, wherein each notch radiating element comprises:
a metallized region on a first side of the dielectric substrate extending across a width of the notch radiating element from a forward edge of the notch radiating element to a rear edge of the notch radiating element;
a tuning element in the metallized region adjacent to a feeding point of the notch radiating element; and
a notch extending from the tuning element to the forward edge of the notch radiating element thereby creating a notch profile,
wherein a first edge element is provided adjacent to a first side of the plurality of planar notch radiating elements, and a second edge element is provided adjacent to a second side, opposite to the first side, of the plurality of planar notch radiating elements, each edge element having an edge profile extending from the forward edge of an adjacent notch radiating element to the rear edge of the adjacent notch radiating element, and wherein at least one meandering section is provided in each edge profile.

10. The single polarized radiator according to claim 9 , wherein a first of the at least one meandering section is provided at a forward edge of each edge element.

11. The single polarized radiator according to claim 10 , wherein a second of the at least one meandering section is provided at a side edge of each edge element.

12. The single polarized radiator according to claim 9 , wherein the rear edge of each notch radiating element is connectable to a ground plane.

13. The single polarized radiator according to claim 9 , wherein a plurality of indentations is provided in the metallized region along each side of the notch of each notch radiating element to extend a length of the notch profile.

14. The single polarized radiator according to claim 13 , wherein the indentations are parallel to the rear edge of the notch radiating element.

15. The single polarized radiator according to claim 13 , wherein the indentations are evenly distributed along the length of the notch profile.

16. The single polarized radiator according to claim 9 , wherein the plurality of notch radiating elements share the same metallized region arranged on the dielectric substrate.

17. A single polarized broadband antenna comprising at least one single polarized radiator comprising a plurality of planar notch radiating elements arranged on a dielectric substrate, wherein each notch radiating element of the plurality of planar notch radiating elements comprising:
a metallized region on a first side of the dielectric substrate extending across a width of the notch radiating element from a forward edge of the notch radiating element to a rear edge of the notch radiating element;
a tuning element in the metallized region adjacent to a feeding point of the notch radiating element;
a notch extending from the tuning element to the forward edge of the notch radiating element thereby creating a notch profile; and
a plurality of indentations in the metallized region along each side of the notch to extend a length of the notch profile,
wherein the rear edge of each notch radiating element is connected to a ground plane and each single polarized radiator is arranged in a first direction.

18. A dual polarized broadband antenna comprising multiple single polarized radiators comprising a plurality of planar notch radiating elements arranged on a dielectric substrate, wherein each notch radiating element of the plurality of planar notch radiating elements comprising:
a metallized region on a first side of the dielectric substrate extending across a width of the notch radiating element from a forward edge of the notch radiating element to a rear edge of the notch radiating element;
a tuning element in the metallized region adjacent to a feeding point of the notch radiating element;
a notch extending from the tuning element to the forward edge of the notch radiating element thereby creating a notch profile; and
a plurality of indentations in the metallized region along each side of the notch to extend a length of the notch profile,
wherein the rear edge of each notch radiating element is connected to a ground plane and wherein at least a first of the multiple single polarized radiators is arranged in a first direction and at least a second of the multiple single polarized radiators is arranged in a second direction that is orthogonal to the first direction.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Kolitsidas Christos
• Bantavis Petros
• Engström Stefan
• Jonsson Lars
• Kyriacou Georgios A

Classifications

• H01Q21/24

  Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)} · CPC title

• H01Q21/0006

  Particular feeding systems · CPC title

• H01Q21/064 Primary

  using horn or slot aerials (slotted waveguides arrays H01Q21/005) · CPC title

• H01Q1/246

  specially adapted for base stations · CPC title

• H01Q13/085 Primary

  Slot-line radiating ends · CPC title