High-frequency feed structure antenna apparatus and method of use

• US 7,486,236 B2
• Filed: 09/25/2006
• Issued: 02/03/2009
• Est. Priority Date: 09/23/2005
• Status: Expired due to Fees

• Current Assignee: University of South Florida (State University System of Florida)
• Original Assignee: University of South Florida (State University System of Florida)
• Inventors: Goswami, D. Yogi, Buckle, Kenneth A., Sarehraz, Mohammad, Stefanakos, Elias, Weller, Thomas
• Primary Examiner(s): CHEN, SHIH CHAO
• Application Number:
  US11/534,800
• Publication Number:
  US 20070069965A1
• Time in Patent Office: 862 Days
• Field of Search: 343/700.MS, 343/770, 343/771, 343/772, 343/785
• US Class Current: 343/700.0MS
• CPC Class Codes: H01Q 1/248 provided with an AC/DC converting device, e.g. rectennas
• CPC Class Codes: H01Q 13/24 constituted by a dielectric or ferromagnetic rod or pipe H01Q13/28 takes precedence
• CPC Class Codes: H01Q 13/28 comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric

Abstract

An antenna apparatus for the reception of, and or transmission of, electromagnetic energy, the apparatus including a non-radiating dielectric waveguide aperture coupled to at least one dielectric rod antenna, which is electromagnetically coupled to a transmission line element.

Claims

1. An antenna apparatus for the reception of, and or transmission of, electromagnetic energy, the apparatus comprising:

a non-radiating dielectric waveguide, further comprising a first conductive plate having a first aperture and a second conductive plate having a second aperture, the first conductive plate and the second conductive plate arranged substantially parallel to each other at a predetermined distance, and a dielectric strip element having a length direction positioned between the first conductive plate and the second conductive plate and aligned with the first aperture and the second aperture;

a transmission line element, the transmission line element electromagnetically coupled to the second aperture of the non-radiating dielectric waveguide; and

a plurality of antenna elements and a plurality of apertures positioned on the first conductive plate of the dielectric waveguide, each of the plurality of antenna elements aperture coupled to the non-radiating dielectric waveguide through one of the plurality of apertures.

2. The apparatus of claim 1, wherein the plurality of antenna elements are dielectric rod antennas.

3. The apparatus of claim 2, wherein the plurality of dielectric rod antennas are high gain antennas.

4. The apparatus of claim 1, wherein the transmission line element is an electromagnetic waveguide.

5. The apparatus of claim 1, wherein the transmission line element is an optical waveguide.

6. The apparatus of claim 1, wherein the transmission line element further comprises at least one tuning stub positioned along its length.

7. The apparatus of claim 1, further comprising a rectifier in circuit communication with the transmission line.

8. The apparatus of claim 7, wherein the rectifier is a metal-insulator-metal rectifier.

9. An antenna apparatus for the conversion of solar energy to direct current power, the apparatus comprising:

a dielectric rod antenna element to receive electromagnetic solar energy;

a non-radiating dielectric waveguide, further comprising a first conductive plate having a first aperture and a second conductive plate having a second aperture, the first conductive plate and the second conductive plate arranged substantially parallel to each other at a predetermined distance, and a dielectric strip element having a length direction positioned between the first conductive plate and the second conductive plate and aligned with the first aperture and the second aperture, and wherein the dielectric rod antenna is aperture coupled to the non-radiating dielectric waveguide through the first aperture such that the electromagnetic solar energy received by the antenna is transmitted through the non-radiating dielectric waveguide;

a transmission line element, the transmission line element electromagnetically coupled to the second aperture of the non-radiating dielectric waveguide;

a rectifier electrically coupled to the transmission line element for rectifying the transmitted electromagnetic solar energy into direct current power; and

a plurality of antenna elements and a plurality of apertures positioned on the first conductive plate of the dielectric waveguide, each of the plurality of antenna elements aperture coupled to the non-radiating dielectric waveguide through one of the plurality of apertures.

10. The apparatus of claim 9, wherein the plurality of antenna elements are positioned substantially linearly along the length of the non-radiating dielectric waveguide.

11. A method for the reception of electromagnetic energy, the method comprising the steps of:

receiving electromagnetic energy through a plurality of antenna elements and a plurality of apertures, the plurality of antenna elements and the plurality of apertures positioned on a first conductive plate of a non-radiating dielectric waveguide and each of the plurality of antenna elements aperture coupled to the non-radiating dielectric waveguide through one of the plurality of apertures;

transmitting the received electromagnetic energy from the plurality of antenna elements through the non-radiating dielectric waveguide; and

transmitting the electromagnetic energy from the non-radiating dielectric waveguide through a transmission line element.

12. The method of claim 11, wherein the plurality of antenna elements are slot aperture antennas positioned on the non-radiating dielectric waveguide.

13. The method of claim 11, wherein the plurality of antenna elements are dielectric rod antennas.

14. The method of claim 11, further comprising detecting the electromagnetic energy transmitted through the transmission line element.

15. The method of claim 11, further comprising rectifying the electromagnetic energy transmitted through the transmission line element.

16. The method of claim 11, wherein the electromagnetic energy is solar energy and the method further comprises rectifying the electromagnetic energy transmitted through the transmission line element to provide direct current power.