MULTI-LAYER FLAT PLATE ANTENNA WITH LOW-COST MATERIAL AND HIGH-CONDUCTIVITY ADDITIVE PROCESSING
First Claim
1. A method for producing a multi-layer flat plate antenna comprising the steps of:
- (a) forming a ground plane;
(b) layering a first foam layer on an upper surface of said ground plane;
(c) screen-printing a power distribution circuit on a first layer of a dielectric material, said first layer of said dielectric material placed on an upper surface of said first foam layer;
(d) performing post-processing on said power distribution circuit to increase circuit conductivity;
(e) layering a second foam layer on said power distribution circuit;
(f) forming radiating elements on a second layer of said dielectric material, said second layer of said dielectric material placed on an upper surface of said second foam layer;
(g) arranging said antenna such that said power distribution circuit drives said radiating elements.
1 Assignment
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Accused Products
Abstract
The invention is a multi-layer printed circuit antenna and a method for developing the antenna for which a screen printing technology is used to deposit conducting material forming the circuit layout directly on low-cost dielectric material, followed by a post-processing step performed on the printed circuit to increase circuit conductivity. In one embodiment, the dielectric material used is a thin layer supported by low-loss, foam-like material for spacing between the antenna layers. In another embodiment, a thick high-density, low-cost low-loss dielectric material acts as both the printing surface and the spacer between the antenna layers. The thick high-density, low-cost low-loss dielectric material allows for saving one layer in every printed circuit. The screen printing or additive process is less expensive than its etching or subtractive counterpart due to the process itself and due to the lower cost of materials. The post-processing of the printed circuit achieves the same level of conductivity as the more expensive etching technique. This allows for low-cost manufacturing for printed circuit antennas for use in, for example, DBS, DTH/TV, MMDS, LMDS and other wireless communications systems.
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Citations
44 Claims
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1. A method for producing a multi-layer flat plate antenna comprising the steps of:
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(a) forming a ground plane;
(b) layering a first foam layer on an upper surface of said ground plane;
(c) screen-printing a power distribution circuit on a first layer of a dielectric material, said first layer of said dielectric material placed on an upper surface of said first foam layer;
(d) performing post-processing on said power distribution circuit to increase circuit conductivity;
(e) layering a second foam layer on said power distribution circuit;
(f) forming radiating elements on a second layer of said dielectric material, said second layer of said dielectric material placed on an upper surface of said second foam layer;
(g) arranging said antenna such that said power distribution circuit drives said radiating elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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12. A method for producing a multi-layer flat plate antenna comprising the steps of:
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(a) forming a ground plane;
(b) screen-printing a power distribution circuit on a top surface of a first layer of a dielectric material, and placing a bottom surface of said first layer of said dielectric material on an upper surface of said ground plane;
(c) performing post-processing on said power distribution circuit to increase circuit conductivity;
(d) forming radiating elements on a top surface of a second layer of said dielectric material, and placing a bottom surface of said second layer of said dielectric material on said power distribution circuit;
(e) arranging said antenna such that said power distribution circuit drives said radiating elements.
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22. A multi-layer flat plate antenna comprising:
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(a) a ground plane;
(b) a first layer of spacing material between said ground plane and a first layer of dielectric material;
(c) a power distribution circuit, wherein said power distribution circuit has been screen-printed on said first layer of dielectric material, and post-processed to increase circuit conductivity after said screen-printing;
(d) a second layer of spacing material between said power distribution circuit and a second layer of dielectric material; and
(e) radiating elements formed on said second layer of dielectric material, wherein said power distribution circuit drives said radiating elements. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A multi-layer flat plate antenna comprising:
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(a) a ground plane;
(b) a power distribution circuit, wherein said power distribution circuit has been screen-printed on a top surface of a first layer of dielectric material, and post-processed to increase circuit conductivity after said screen-printing, and a bottom surface of said first layer of dielectric material rests on an upper surface of said ground plane;
(c) radiating elements formed on a top surface of a second layer of said dielectric material, wherein a bottom surface of said second layer of said dielectric material rests on said power distribution circuit, and said power distribution circuit drives said radiating elements. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A multi-layer flat plate antenna comprising:
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(a) a ground plane;
(b) a first layer of spacing material between said ground plane and a first layer of dielectric material;
(c) a power distribution circuit, wherein said power distribution circuit has been screen-printed on said first layer of dielectric material;
(d) a second layer of spacing material between said power distribution circuit and a second layer of dielectric material; and
(e) radiating elements formed on said second layer of dielectric material, wherein said power distribution circuit drives said radiating elements, and wherein at least one of said power distribution circuit or said radiating elements is post-processed to increase circuit conductivity.
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44. A multi-layer flat plate antenna comprising:
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(a) a ground plane;
(b) a power distribution circuit, wherein said power distribution circuit has been screen-printed on a top surface of a first layer of dielectric material, and a bottom surface of said first layer of dielectric material rests on an upper surface of said ground plane;
(c) radiating elements formed on a top surface of a second layer of said dielectric material, wherein a bottom surface of said second layer of said dielectric material rests on said power distribution circuit, and said power distribution circuit drives said radiating elements, and wherein at least one of said power distribution circuit or said radiating elements is post-processed to increase circuit conductivity.
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Specification