Apparatus and method for transferring DC power and RF energy through a dielectric for antenna reception
First Claim
Patent Images
1. A radio frequency or RF coupling device for transferring an RF signal across a dielectric comprising:
- a first patch device having a first feed through which said RF signal can be transmitted; and
a second patch device having a second feed through which said RF signal can be transmitted, said second patch device and said first patch device comprising respective patches mounted on respective circuit boards, said second patch device and said first patch device being attached to opposite sides of said dielectric such that said patches are disposed against said dielectric;
wherein said first feed and said second feed are disposed on said first patch device and said second patch device, respectively, such that they are essentially directly opposite each other when said first patch device and said second patch device are attached to said dielectric.
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Abstract
An antenna system is provided which employs RF and DC coupling across a dielectric. RF coupling is achieved using low cost and low loss RF coupler pairs such as quarterwave patches that are mounted opposite each other on either side of a dielectric. The feeds of the patches are aligned so as to be directly opposite each other, and the patches are mounted against the dielectric. A voltage booster circuit can be provided to increase input supply voltage for DC coupling that is adjustable to accommodate the thickness of the dielectric.
17 Citations
8 Claims
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1. A radio frequency or RF coupling device for transferring an RF signal across a dielectric comprising:
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a first patch device having a first feed through which said RF signal can be transmitted; and
a second patch device having a second feed through which said RF signal can be transmitted, said second patch device and said first patch device comprising respective patches mounted on respective circuit boards, said second patch device and said first patch device being attached to opposite sides of said dielectric such that said patches are disposed against said dielectric;
wherein said first feed and said second feed are disposed on said first patch device and said second patch device, respectively, such that they are essentially directly opposite each other when said first patch device and said second patch device are attached to said dielectric. - View Dependent Claims (2, 3, 4, 5)
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6. An antenna system comprising:
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an interior antenna assembly having a first radio frequency coupling device connected to a dielectric surface and a first direct current coupling device connected to said dielectric surface; and
an exterior antenna assembly comprising at least one antenna for receiving a radio frequency signal, an amplifier for amplifying said radio frequency signal, a second radio frequency coupling device mounted opposite said first radio frequency coupling device on the other side of said dielectric surface for transferring said radio frequency signal thereto through said dielectric surface, and a second direct current coupling device mounted opposite said first direct current coupling device on the other side of said dielectric surface for receiving a power signal therefrom through said dielectric surface;
wherein said interior antenna assembly can be connected to a receiver that supplies power thereto, said interior antenna assembly comprising an alternating current signal generation circuit for generating an alternating current signal from a direct current source for transfer to said exterior antenna assembly via said first direct current coupling device and said second direct current coupling device, said alternating current signal generation circuit not operating to generate said alternating current signal until said interior antenna assembly is connected to said receiver and receiving power therefrom. - View Dependent Claims (7, 8)
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Specification