Radiating element and engineered magnetic material

Patent metadata

Field	Value
Publication number	US-10310491-B2
Application number	US-201414150165-A
Country	US
Kind code	B2
Filing date	Jan 8, 2014
Priority date	Jan 7, 2014
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

Various embodiments are described that relate to a radiating element and an engineered magnetic material. In a communication environment a radiating element can be used to communicate information, such as to send signals. Various factors, including electromagnetic factors, can influence the performance of the radiating element. In one example, if the radiating element becomes too close to a ground plane, then performance of the radiating element can suffer. To counter negative effects of being too close to the ground plane an engineered magnetic material can be employed that causes the radiating element to perform better when relatively close to the ground plane.

First claim

What is claimed is:

1. A system, comprising:
a radiating element configured to operate within a frequency band with a high frequency and a low frequency; and
an engineered magnetic material with a thickness within a thickness range of a maximum thickness and a minimum thickness,
where the minimum thickness is equal to about 0.01 of a wavelength that corresponds to the low frequency for the frequency band,
where the maximum thickness is equal to about 0.2 of a wavelength that corresponds to the high frequency for the frequency band,
where the thickness of the engineered magnetic material is of a non-uniform thickness.

2. The system of claim 1 ,
where the engineered magnetic material is configured to be coupled to a ground plane,
where the engineered magnetic material is physically between the ground plane and the radiating element, and
where the engineered magnetic material causes the radiating element to radiate in a direction substantially away from the ground plane.

3. The system of claim 1 , where the radiating element is a dipole radiating element.

4. The system of claim 1 , where the engineered magnetic material is an isotropic Ferrite material.

5. The system of claim 1 ,
where the thickness of the engineered magnetic material is of an about uniform thickness.

6. The system of claim 1 ,
where the high frequency is a highest frequency of the frequency band and
where the low frequency is a lowest frequency of the frequency band.

7. A system, comprising:
a radiating element configured to radiate a signal with a power; and
an isotropic Ferrite material,
where the radiating element comprises a first portion and a second portion that is opposite the first portion,
where the Ferrite material is positioned to face the first portion and not the second portion, and
where the Ferrite material mitigates propagation of the signal in a direction away from a first portion.

8. The system of claim 7 , where:
the radiating element has two longer sides opposite one another and two shorter sides opposite one another,
the first portion is along one of the two longer sides, and
the second portion is along one of the two longer sides.

9. The system of claim 8 , where:
the radiating element is parallel to the isotropic Ferrite material and
a gain pattern of an emission of the radiating element is substantially hemispherical due to the isotropic Ferrite material.

10. The system of claim 7 ,
where the radiating element is configured to operate in a frequency band,
where the frequency band comprises an upper frequency limit associated with a lower wavelength and a lower frequency limit associated with an upper wavelength,
where the isotropic Ferrite material has a thickness,
where the thickness is greater than or equal to about 1% of the upper wavelength, and
where the thickness is no greater than or equal to about 20% of the lower wavelength.

11. The system of claim 10 ,
where the isotropic Ferrite material has a relative magnetic permeability,
where the isotropic Ferrite material has a relative electric permittivity, and
where the relative magnetic permeability is about equal to the relative electric permittivity.

12. The system of claim 10 ,
where the isotropic Ferrite material has a relative magnetic permeability,
where the isotropic Ferrite material has a relative electric permittivity, and
where the relative magnetic permeability is about less than the relative electric permittivity.

13. The system of claim 7 ,
where the thickness of the engineered magnetic material is of a non-uniform thickness,
where the thickness is within the maximum thickness and the minimum thickness,
where the minimum thickness is equal to about 1% of a wavelength that corresponds to the lowest frequency for the frequency band, and
where the maximum thickness is equal to about 20% of a wavelength that corresponds to the highest frequency for the frequency band.

14. A system, comprising:
a radiating element configured to radiate a signal; and
an engineered magnetic material positioned on one side of the radiating element such that the signal contacts the engineered magnetic material,
where the engineered magnetic material has a relative magnetic permeability,
where the engineered magnetic material has a relative electric permittivity,
where the relative magnetic permeability is about equal to or less than the relative electric permittivity,
where the radiating element is a dipole radiating element, and
where the engineered magnetic material is an isotropic Ferrite material.

15. The system of claim 14 ,
where the relative magnetic permeability is greater than a value of about 5.

16. The system of claim 14 , where:
the radiating element is parallel to the engineered magnetic material and
a gain pattern of the signal is substantially hemispherical and directional.

17. The system of claim 14 ,
where the relative magnetic permeability is about equal to the relative electric permittivity.

18. The system of claim 14 ,
where the relative magnetic permeability is less than the relative electric permittivity.

19. The system of claim 14 ,
where the radiating element comprises a first portion and a second portion that is opposite the first portion,
where the isotropic Ferrite material is positioned to face the first portion and not the second portion,
where the isotropic Ferrite material mitigates propagation of the signal in a direction away from a first portion,
where the radiating element has two longer sides opposite one another and two shorter sides opposite one another,
where the first portion is along one of the two longer sides, and
where the second portion is along one of the two longer sides.

Assignees

• Us Army

Inventors

• Minko Glenn
• Daniel Johnny Lee
• Duncan Katherine
• Breakall James
• Khalil Mahmoud
• Khalil Mohamed

Classifications

• G05B19/41865 Primary

  characterised by job scheduling, process planning, material flow · CPC title

• H01Q15/004 Primary

  using superconducting materials or magnetised substrates · CPC title