Dielectrically loaded printed dipole antenna

Patent metadata

Field	Value
Publication number	US-11909133-B2
Application number	US-202017102240-A
Country	US
Kind code	B2
Filing date	Nov 23, 2020
Priority date	Nov 23, 2020
Publication date	Feb 20, 2024
Grant date	Feb 20, 2024

Abstract

A dielectrically loaded printed antenna element is described. The antenna element includes at least one conductive arm supported on a substrate. The conductive arm is dielectrically loaded with at least one high dielectric material that is configured to provide spatial coverage of the conductive arm. An antenna array structure is also described that includes at least a first dielectrically loaded antenna element for transmitting and a second dielectrically loaded antenna element for receiving. The transmitting antenna element is aligned orthogonal to the receiving antenna element to further reduce interference.

First claim

The invention claimed is:

1. A dipole antenna element comprising:
a substrate having a first surface and a second surface opposite to the first surface;
a first conductive region configured to receive or transmit electromagnetic signals provided on the first surface of the substrate, the first conductive region comprising a first conductive arm;
a first high dielectric material configured to provide spatial covering of the first conductive region provided on the first surface of the substrate, wherein the first high dielectric material is configured to direct electromagnetic fields to mitigate interference;
a second conductive region configured to receive or transmit electromagnetic signals provided on the substrate, the second conductive region comprising a second conductive arm; and
a second high dielectric material configured to provide spatial covering of the second conductive arm region provided on the substrate, wherein the second high dielectric material is configured to direct electromagnetic fields to mitigate interference.

2. The dipole antenna element of claim 1 , wherein the second conductive arm and second high dielectric material are provided on the second surface of the substrate.

3. The dipole antenna element of claim 1 , wherein the substrate has a first dielectric constant value, and the high dielectric material has a second dielectric constant value that is greater than the first dielectric constant value.

4. The dipole antenna element of claim 3 , wherein the second dielectric constant value is greater than 10.

5. The dipole antenna element of claim 4 , wherein the second dielectric constant value is 10.2.

6. The dipole antenna element of claim 4 , wherein the second dielectric constant value is 20.

7. The dipole antenna element of claim 1 , wherein dimensions of the high dielectric material is configured to be equal to, or greater than, dimensions of the first conductive arm.

8. The dipole antenna element of claim 1 , wherein the high dielectric material is 0.04λ in thickness.

9. The dipole antenna element of claim 1 , wherein the first and second conductive arms are printed conductive traces or casted metallic conductive traces.

10. The dipole antenna element of claim 1 , further comprising:
a feed port electrically coupled to the first conductive arm such that the first conductive arm is a part of an unbalanced transmission line; and
a balun electrically coupled between a ground and the second conductive arm, the balun is configured to convert the unbalanced transmission line into a balanced transmission line that is capable of driving both of the first and second conductive arms.

11. The dipole antenna element of claim 10 , wherein the balun is a tapered balun.

12. The dipole antenna element of claim 10 , wherein the substrate is perpendicularly supported on a reflector.

13. The dipole antenna element of claim 1 , wherein the dipole antenna element is a printed dipole element or a casted metallic dipole element.

14. The dipole antenna element of claim 1 , wherein the surface of the substrate upon which the first and second conductive regions are provided is dependent on a feed port.

15. The dipole antenna element of claim 14 , wherein the feed port is one of a excitation throw slot, a microstrip balun, and a transition from microstrip line to differential lines.

16. The dipole antenna element of claim 1 , wherein the second conductive arm and second high dielectric material are provided on the first surface of the substrate.

17. The dipole antenna element of claim 1 , wherein the first high dielectric material and second high dielectric material are the same.

18. The dipole antenna element of claim 1 , wherein the first high dielectric material and second high dielectric material are integrally formed.

19. The dipole antenna element of claim 1 , wherein the first high dielectric material and second high dielectric material have the same dielectric constant value.

20. The dipole antenna element of claim 1 , wherein the first conductive region further comprises a first leg portion integrally formed with the first conductive arm at an angle to the first conductive arm.

21. The dipole antenna element of claim 1 , wherein the first conductive region further comprises a first leg portion integrally formed with the first conductive arm at a substantially perpendicular angle to the first conductive arm such that the first conductive region forms a shape of an inverted “L”; and
wherein the second conductive region further comprises a second leg portion integrally formed with second conductive arm at a substantially perpendicular angle to the second conductive arm such that the second conductive region forms a shape of an inverted “L”.

Assignees

• Zaid Jamal Mohamed Ahmouda
• Boutayeb Halim
• Wang Peiwei
• Huawei Tech Co Ltd

Inventors

• Zaid Jamal Mohamed Ahmouda
• Boutayeb Halim
• Wang Peiwei

Classifications

• H01Q9/16 Primary

  with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole (H01Q9/44 takes precedence) · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q15/14

  Reflecting surfaces; Equivalent structures {(electromagnetic shields H01Q1/526)} · CPC title

• H01Q21/06

  Arrays of individually energised antenna units similarly polarised and spaced apart · CPC title

• H01Q21/28

  Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)} · CPC title