Focused wave antenna

• US 6,914,581 B1
• Filed: 10/31/2002
• Issued: 07/05/2005
• Est. Priority Date: 10/31/2001
• Status: Expired due to Fees

• Current Assignee: Venture Partners Co.
• Original Assignee: Venture Partners Co.
• Inventors: Popek, Marc H.
• Primary Examiner(s): LE, HOANGANH T
• Application Number:
  US10/286,129
• Time in Patent Office: 978 Days
• Field of Search: H01/Q01.5/02, H01/Q01.5/24, 343/909, 343/756, 343/793, 343/795, 343/700.MS, 343/873
• US Class Current: 343/909
• CPC Class Codes: H01Q 1/40 Radiating elements coated with or embedded in protective material
• CPC Class Codes: H01Q 9/0485 Dielectric resonator antennas
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence

Abstract

Disclosed herein is an antenna that is integrally encompassed within a three-dimensional shaped substance that has a permittivity or permeability constant greater than one. Such an encompassed antenna results in the production of radiated energy at a particular frequency and gain that can conventionally only be produced by a larger antenna.

Claims

1. A device for radiating to a medium or receiving from the medium, a signal having a predetermined wavelength in the medium, comprising:

a body of a substance in which an antenna is encapsulated, and in which the wavelength λ

of the signal is less than in the medium,

wherein a surface of the body forms a signal lens that directs energy of a signal according to an intended radiation or sensitivity pattern,

wherein the antenna is a dipole with arms of approximately λ

/4 in length in the substance,

wherein the body has a pair of opposite sides, a pair of opposite ends, a top, and a bottom, and wherein the dipole extends between the ends of the body and is spaced from the sides and the top and bottom of the body by wavelength dimensions of about λ

/8 to about 3λ

/8 in the substance.

2. A device according to claim 1, wherein the lens is convex.

3. A device according to claim 1, wherein the lens is concave.

4. A device according to claim 1, wherein the substance has a dielectric constant between about 2 and about 10.

5. A device according to claim 4, wherein the substance is silicone having a dielectric constant of about 4.

6. A device according to claim 1, wherein the wavelength dimensions of the body are approximately λ

/2×

λ

/2×

λ

/2.

7. A device according to claim 1, wherein the dipole has leads of approximately λ

/8 to 3λ

/8 in length in the substance for transmitting a signal to or from the dipole.

8. A device according to claim 1, wherein the lens is at the top of the body and the bottom of the body is formed with a reflector.

9. A device according to claim 1, wherein the substance has at least one of permittivity and permeability that differs from that of the medium.

10. A device according to claim 1, wherein the body contains at least one additional antenna.

11. A device according to claim 10, wherein the additional antenna is parallel to or perpendicular to the dipole.