Extended Varying Angle Antenna for Electromagnetic Radiation Dissipation Device

• US 20120280889A1
• Filed: 07/13/2012
• Published: 11/08/2012
• Est. Priority Date: 06/26/2008
• Status: Active Grant

• Current Assignee: R2L, Llc
• Original Assignee: R2L, Llc
• Inventors: TUCEK, Kevin B., SHANKS, Steven C.
• Granted Patent: US 8,704,729 B2
• Time in Patent Office: Days
• US Class Current: 343/904
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/245 with means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
• 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 9/27 Spiral antennas

Abstract

An extended varying angle antenna is used with an electromagnetic radiation dissipation device to reduce exposure to electromagnetic radiation. The extended antenna captures radiation from an active emission source, such as a transmitting cellular telephone. The device converts the captured radiation into an electric current and dissipates the collected current by operating the dissipation device. The extended antenna is a printed circuit board trace antenna comprising a microstrip having a meandering portion with several serially connected meandering segments and an extended portion. One or more meandering segments include 90-degree bends in the microstrip, and one or more meandering segments include bends of more and less than 90 degrees. The extended portion includes two or more parallel horizontal portions and at least one vertical portion, all connected by 90-degree bends. The extension is connected to the meandering portion or to the dissipation device to provide additional current to the dissipation device.

Claims

1. An extended varying angle antenna for use with a device that reduces undesired electromagnetic radiation emanating from an active emission source, the antenna comprising a microstrip disposed on a printed circuit board, wherein the microstrip comprises:

a. a meandering portion with at least four meandering segments serially connected and wherein

i. three or more meandering segments comprise bends equal to 90 degrees; and

ii. one or more meandering segments comprise bends not equal to 90 degrees; and

b. an extension connected to the meandering portion.

2. The antenna of claim 1 wherein the length of the meandering portion of the microstrip is about 3.8 inches.

3. The antenna of claim 2 wherein the length of the extension of the microstrip is about 2.4 inches.

4. The antenna of claim 1 wherein the extension further comprises a first horizontal portion having a length of about 1.18 inches and a second horizontal portion having a length of about 0.91 inches.

5. The antenna of claim 1 wherein the extension further comprises a first vertical portion having a length of about 0.12 inches and a second vertical portion having a length of about 1.15 inches.

6. The device of claim 1 wherein the active emission source is a cellular telephone.

7. An extended varying angle antenna for use with a device that reduces undesired electromagnetic radiation emanating from an active emission source, the antenna comprising a microstrip disposed on a printed circuit board, wherein the microstrip comprises:

a. a meandering portion comprising at least three meandering segments serially connected and wherein;

i. two or more meandering segments comprise 90-degree bends;

ii. one or more meandering segments comprise bends not equal to 90 degrees;

iii. at least one meandering segment comprising bends not equal to 90 degrees comprises at least one bend greater than 90 degrees and at least one bend less than 90 degrees; and

iv. at least one meandering segment comprising bends equal to 90 degrees comprises three or more bends, each bend being equal to 90 degrees; and

b. an extension connected to the meandering portion.

8. The antenna of claim 7 wherein the length of the meandering portion of the microstrip is about 3.8 inches.

9. The antenna of claim 7 wherein the length of the extension of the microstrip is about 2.4 inches.

10. The antenna of claim 7 wherein the extension further comprises a first horizontal portion having a length of about 1.18 inches and a second horizontal portion having a length of about 0.91 inches.

11. The antenna of claim 7 wherein the extension further comprises a first vertical portion having a length of about 0.12 inches and a second vertical portion having a length of about 0.15 inches.

12. A device for reducing harmful electromagnetic radiation emanating from an active emission source, the device comprising:

a. an extended varying angle antenna comprising a microstrip disposed on a printed circuit board, wherein the microstrip comprises;

i. a meandering portion comprising at least three meandering segments serially connected, wherein two or more meandering segments comprise 90-degree bends, wherein one or more meandering segments comprise bends not equal to 90 degrees, and wherein at least one meandering segment comprising bends equal to 90 degrees comprises three or more bends, each bend being equal to 90 degrees; and

ii. an extension connected in series to the meandering portion; and

b. a dissipation assembly connected to the antenna.

13. The device of claim 12 wherein the length of the meandering portion of the microstrip is about 3.8 inches.

14. The device of claim 13 wherein the length of the extension of the microstrip is about 2.4 inches.

15. The device of claim 12 wherein the extension further comprises a first horizontal portion having a length of about 1.18 inches and a second horizontal portion having a length of about 0.91 inches.

16. The device of claim 15 wherein the extension further comprises a first vertical portion having a length of about 0.12 inches and a second vertical portion having a length of about 0.15 inches.

17. The device of claim 12 wherein the dissipation assembly comprises one or more of an electrical, mechanical or thermal device.

18. The device of claim 12 wherein the dissipation assembly comprises a light emitting diode.

19. The device of claim 12 wherein the extended varying angle antenna is not electrically connected to the active emission source.

20. The device of claim 12 wherein the active emission source is a cellular telephone.

21. A device for reducing harmful electromagnetic radiation emanating from an active emission source, the device comprising:

a. an extended varying angle antenna comprising a microstrip disposed on a printed circuit board wherein the microstrip comprises;

i. a meandering portion about 3.8 inches long comprising;

1. a first meandering segment having 90-degree bends;

2. a second meandering segment serially connected to the first microstrip segment and having bends not equal to 90 degrees; and

3. a third meandering segment serially connected to the second meandering segment and having 90-degree bends; and

ii. an extension about 2.4 inches long connected in series to the meandering portion; and

b. a dissipation assembly.

22. The device of claim 21 wherein the active emission source is a cellular telephone.