Feedback and control system for radomes

• US 7,088,308 B2
• Filed: 10/08/2003
• Issued: 08/08/2006
• Est. Priority Date: 10/08/2003
• Status: Expired due to Fees

• Current Assignee: North South Holdings Incorporated (Spherix Incorporated)
• Original Assignee: Harris Corporation (L3Harris Technologies, Inc.)
• Inventors: Delgado, Heriberto Jose, Killen, William D.
• Primary Examiner(s): Vo, Tuyet
• Assistant Examiner(s): VU, JIMMY T
• Application Number:
  US10/681,712
• Publication Number:
  US 20050078048A1
• Time in Patent Office: 1,035 Days
• Field of Search: 343/720, 343/753, 343/770, 343/872, 343/895
• US Class Current: 343/872
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome

Abstract

Method for dynamically optimizing radome (110) performance. The method can include the steps of sensing (405) at least one parameter defining a performance characteristic of the radome (110). At least one electrical characteristic of the radome (110) can responsively be varied to dynamically modify the performance characteristic. For example, the electrical characteristic can be varied by application of an energetic stimulus (440) to the radome (110).

Claims

1. A method for dynamically optimizing radome performance, comprising the steps of:

sensing at least one parameter defining a performance characteristic of said radome;

selecting said parameter from the group consisting of a reflection coefficient, a transmission coefficient, a radome temperature, a polarization of incident waves, and an angle of wave incidence; and

responsive to said sensing step, selectively varying at least one electrical characteristic of said radome to dynamically modify said performance characteristic.

2. The method according to claim 1, further comprising the step of:

selecting said performance characteristic to be a transfer characteristic.

3. The method according to claim 1, further comprising the step of:

selecting said parameter from the group consisting of an incident radio frequency signal, a reflected radio frequency signal, and a transmitted radio frequency signal.

4. The method according to claim 1, further comprising the step of:

varying said electrical characteristic for only a selected portion of said radome.

5. A method for dynamically optimizing radome performance, comprising the steps of:

sensing at least one parameter defining a performance characteristic of said radome;

responsive to said sensing step, selectively varying at least one electrical characteristic of said radome to dynamically modify said performance characteristic;

varying said electrical characteristic by application of an energetic stimulus to said radome; and

selecting said energetic stimulus from the group consisting of an electrical stimulus, a photonic stimulus, a magnetic stimulus, and a thermal stimulus.

6. A radome, comprising:

a radome comprised of a dome wall, at least a portion of said dome wall comprised of magnetic material;

a sensor sensing at least one parameter defining a performance characteristic of said radome; and

,

a control system responsive to said sensor that selectively varies at least one electrical characteristic of said radome to dynamically modify said performance characteristic;

wherein said magnetic material includes at least one material selected from the group consisting of a ferroelectric material, a ferromagnetic material, a ferrite, and a liquid crystal polymer.

7. The radome according to claim 6, wherein said sensor senses a radio frequency energy.

8. A radome, comprising:

a radome;

a sensor sensing at least one parameter defining a performance characteristic of said radome; and

,

a control system responsive to said sensor that selectively varies at least one electrical characteristic of said radome to dynamically modify said performance characteristic;

wherein said parameter sensed by said sensor is selected from the group consisting of a reflected radio frequency energy, transmitted radio frequency energy, a radome temperature, a polarization of incident waves, and an angle of wave incidence.

9. A radome, comprising:

a radome;

a sensor sensing at least one parameter defining a performance characteristic of said radome; and

,

a control system responsive to said sensor that selectively varies at least one electrical characteristic of said radome to dynamically modify said performance characteristic;

wherein said electrical characteristic is selected from the group consisting of a permittivity, a permeability, a loss tangent, and a reflectivity.

10. The radome according to claim 9 wherein said control system further comprises a control processor configured to determine at least one control action based in part upon said parameter.

11. The radome according to claim 9 wherein said electrical characteristic is varied in response to an energetic stimulus.

12. A radome, comprising:

a radome;

a sensor sensing at least one parameter defining a performance characteristic of said radome; and

,

a control system responsive to said sensor that selectively varies at least one electrical characteristic of said radome to dynamically modify said performance characteristic, said electrical characteristic varied in response to an energetic stimulus;

wherein said energetic stimulus is selected from the group consisting of an electrical stimulus, a photonic stimulus, a magnetic stimulus, and a thermal stimulus.

13. A method for dynamically optimizing radome performance, comprising the steps of:

sensing at least one parameter defining a performance characteristic of said radome;

responsive to said sensing step, selectively varying at least one electrical characteristic of said radome to dynamically modify said performance characteristic;

selectively varying said electrical characteristic from the group consisting of a permittivity, a permeability, a loss tangent, and a reflectivity.

14. The method according to claim 13, further comprising the step of:

selecting said performance characteristic to be a transfer characteristic.

15. The method according to claim 13, further comprising the step of:

selecting said parameter from the group consisting of a reflection coefficient, a transmission coefficient, a radome temperature, a polarization of incident waves and an angle of wave incidence.

16. The method according to claim 13, further comprising the step of:

varying said electrical characteristic by application of an energetic stimulus to said radome.