Compound coupling to re-radiating antenna solution
First Claim
1. A compound coupler, comprising:
- a first compound loop antenna connected to an electrical circuit, the first compound loop antenna including at least a first radiator element and a first loop element; and
a second compound loop antenna connected to a re-radiator antenna, the second compound loop antenna including at least a second radiator element and a second loop element, the second compound loop antenna being placed in close proximity to, but not in direct contact with, the first compound loop antenna, wherein the first compound loop antenna compound couples with the second compound loop antenna to wirelessly transmit RF energy from the electrical circuit to the second compound loop antenna for transmission by the re-radiator antenna,wherein the compound coupling between the first compound loop antenna and the second compound loop antenna is simultaneously capacitive and inductive, and is associated with a coupling efficiency that is not highly sensitive to translation and alignment between the first compound loop antenna and the second compound loop antenna.
1 Assignment
0 Petitions
Accused Products
Abstract
Source radio frequency energy (RF) is coupled wirelessly, with no direct physical contact, between two compound loop (CPL) antennas across a variety of barriers such as plastic, human tissues, glass, and air. The compound coupling interface is highly efficient in transferring the RF energy from a source including one CPL antenna to a destination including a second CPL antenna. A re-radiating structure including a further CPL antenna or a different type of antenna may be connected on the destination side to completely physically isolate the source side from the destination side. When the destination coupling antenna is removed, the source coupling antenna may operate as an efficient radiator at the desired operating frequencies. Likewise, the destination coupling antenna may operate as an efficient radiator in the absence of the source coupling antenna.
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Citations
19 Claims
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1. A compound coupler, comprising:
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a first compound loop antenna connected to an electrical circuit, the first compound loop antenna including at least a first radiator element and a first loop element; and a second compound loop antenna connected to a re-radiator antenna, the second compound loop antenna including at least a second radiator element and a second loop element, the second compound loop antenna being placed in close proximity to, but not in direct contact with, the first compound loop antenna, wherein the first compound loop antenna compound couples with the second compound loop antenna to wirelessly transmit RF energy from the electrical circuit to the second compound loop antenna for transmission by the re-radiator antenna, wherein the compound coupling between the first compound loop antenna and the second compound loop antenna is simultaneously capacitive and inductive, and is associated with a coupling efficiency that is not highly sensitive to translation and alignment between the first compound loop antenna and the second compound loop antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A combination compound coupler and radiator, comprising:
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a first compound loop antenna connected to an electrical circuit, the first compound loop antenna including at least a first radiator element and a first loop element and configured to operate as a radiator; and a second compound loop antenna connected to a re-radiator antenna, the second compound loop antenna including at least a second radiator element and a second loop element, wherein, when the second compound loop antenna is placed in close proximity to, but without touching, the first compound loop antenna, the first compound loop antenna compound couples with the second compound loop antenna to wirelessly transmit RF energy from the electrical circuit to the second compound loop antenna for transmission by the re-radiator antenna; wherein when the first compound loop antenna is not in close proximity to the second compound loop antenna, the first compound loop antenna wirelessly transmits the RF energy from the electrical circuit; and wherein the compound coupling between the first compound loop antenna and the second compound loop antenna is simultaneously capacitive and inductive, and is associated with a coupling efficiency that is not highly sensitive to translation and alignment between the first compound loop antenna and the second compound loop antenna. - View Dependent Claims (15, 16, 17, 18)
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19. A method of compound coupling an electric circuit to a re-radiator antenna comprising:
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connecting the electric circuit to a first compound loop antenna; connecting the re-radiator antenna to a second compound loop antenna; aligning the first compound loop antenna in a parallel orientation relative to the second compound loop antenna, wherein upon energizing the electric circuit, RF energy is simultaneously capacitively and inductively compound coupled from the first compound loop antenna to the second compound loop antenna for transmission by the re-radiator antenna, and a coupling efficiency is not highly sensitive to translation and alignment between the first compound loop antenna and the second compound loop antenna.
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Specification