APPARATUS FOR HARVESTING ENERGY FROM MICROWAVE

• US 20100270967A1
• Filed: 01/29/2010
• Published: 10/28/2010
• Est. Priority Date: 04/28/2009
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: MOON, Jung-Ick, KWON, Jong-Hwa, CHO, In-Kui, YUN, Je-Hoon
• Application Number:
  US12/696,442
• Publication Number:
  US 20100270967A1
• Time in Patent Office: Days
• US Class Current: 320/101
• CPC Class Codes: H01M 10/46 Accumulators structurally combined with charging apparatus circuits for charging H02J7/00
• CPC Class Codes: H02J 50/001 Energy harvesting or scavenging
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/35 with light sensitive cells
• CPC Class Codes: Y02E 10/76 Power conversion electric or electronic aspects
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

Provided is an apparatus for harvesting energy from a microwave. An apparatus for harvesting energy from a microwave in an electricity storage system of a building, includes: a plurality of rectennas arranged with a predetermined length according to characteristic of microwave to be absorbed, and configured to collect microwave in the atmosphere and convert the collected microwave into electric energy; a current converter configured to convert the electric energy outputted from the rectennas into a storable current; and a charging tank configured to store the current outputted from the current converter, wherein the arranged rectennas are attached to an outer wall of the building, and the rectennas attached to the top of the building are printed in a transparent conductor on the surface of a solar cell.

Claims

1. An apparatus for harvesting energy from a microwave in an electricity storage system of a building, the apparatus comprising:

a plurality of rectennas arranged with a predetermined length according to characteristic of microwave to be absorbed, and configured to collect microwave in the atmosphere and convert the collected microwave into electric energy;

a current converter configured to convert the electric energy outputted from the rectennas into a storable current; and

a charging tank configured to store the current outputted from the current converter,

wherein the arranged rectennas are attached to an outer wall of the building, and the rectennas attached to the top of the building are printed in a transparent conductor on the surface of a solar cell.

2. The apparatus of claim 1, further comprising a wind power generator configured to generate induced electricity by using wind power and provide the induced electricity to the charging tank.

3. The apparatus of claim 1, further comprising a plurality of rectennas configured to collect microwave generated from a device generating microwave inside the building, convert the collected microwave into an electric current, and provide the electric current to the current converter.

4. The apparatus of claim 3, wherein the rectennas are printed on a transparent conductor in array type, and four sides of the device generating the microwave are shielded by the rectennas, thereby preventing leakage of the microwave.

5. The apparatus of claim 1, wherein, in case where a mobile communication repeater or a broadcast repeater is installed in the outside or top of the building, the apparatus further comprises a plurality of array rectennas configured to prevent microwaves generated at the mobile communication repeater or the broadcast repeater from flowing into the building, and to convert the microwave generated at the mobile communication repeater or the broadcast repeater into electric energy.

6. A system for harvesting energy from a microwave in an electricity storage system, the system comprising:

a plurality of rectennas having a predetermined length and configured to collect a magnetic field among microwaves radiated from a high voltage cable and convert the collected magnetic field into electric energy;

a current converter configured to convert the electric energy outputted from the rectennas into a storable current; and

a charging tank configured to store the converted current,

wherein the rectennas are spaced apart from the high voltage cable by a predetermined distance and arranged in a form of a fence so that a magnetic field does not affect a human body.

7. The system of claim 6, wherein the fence is made of a transparent conductor, and the array rectennas are printed on the fence.

8. The system of claim 6, wherein the fence is configured in a resonance structure or an electromagnetic induction structure.

9. The system of claim 6, wherein, in case where a mobile communication repeater or a broadcast repeater is installed in the outside or top of the building near the electricity storage system, the system further comprises a plurality of array rectennas configured to collect a microwave generated from the mobile communication repeater or the broadcast repeater and convert the collected microwave into electric energy.

10. The system of claim 9, wherein the array rectennas are spaced apart by a predetermined distance and arranged in a form of a fence so that the microwave does not affect a human body.

11. An apparatus for harvesting energy from a microwave radiated from a system with an antenna, the apparatus comprising:

a plurality of rectennas configured to absorb a microwave radiated in an unwanted direction among microwaves radiated from the antenna and convert the absorbed microwave into electric energy;

a current converter configured to convert the electric energy outputted from the rectennas into a storable current, and

a charging tank configured to store the current outputted from the current converter,

wherein the rectennas are spaced apart from the antenna by a predetermined distance in the unwanted direction and arranged in a certain form to shield the microwave.

12. The apparatus of claim 11, wherein, when the antenna is a parabolic antenna, the rectennas are arranged on a rear plate of the parabolic antenna to absorb a microwave radiated in a rear direction among microwaves radiated from the parabolic antenna and convert the absorbed microwave into electric energy.

13. The apparatus of claim 12, wherein the rectennas are implemented on a transparent conductor by using a printing scheme.

14. The apparatus of claim 11, wherein, when the antenna is a dipole antenna, the rectennas are arranged to absorb a microwave radiated in an unwanted direction among microwaves radiated from the antenna and convert the absorbed microwave into electric energy.

15. The apparatus of claim 14, wherein the rectennas are implemented on a transparent conductor by using a printing scheme.