Increasing isolation between multiple antennas with a grounded meander line structure
First Claim
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1. An apparatus comprising a wireless communication device including:
- a dielectric substrate with a first side opposite a second side;
two or more antenna elements spaced apart from one another along the first side of the substrate; and
an electrical ground region carried on the second side of the substrate, the electrical ground region including a first electrically conductive area opposite a first one of the antenna elements, a second electrically conductive area opposite a second one of the antenna elements, and an electrically conductive meander line structure interconnecting the first area and the second area, the meander line structure extending along the second side of the substrate opposite a portion of the first side positioned between the first one of the antenna elements and the second one of the antenna elements.
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Abstract
A wireless communication device includes multiple antennas spaced apart from each other. Also included is a dielectric substrate with electrically conductive ground areas along the substrate opposite the antennas. Signal coupling is decreased between the antennas by connecting the ground areas together with an isolation structure. In one nonlimiting form, this structure includes an electrically conductive meander line structure.
99 Citations
25 Claims
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1. An apparatus comprising a wireless communication device including:
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a dielectric substrate with a first side opposite a second side; two or more antenna elements spaced apart from one another along the first side of the substrate; and an electrical ground region carried on the second side of the substrate, the electrical ground region including a first electrically conductive area opposite a first one of the antenna elements, a second electrically conductive area opposite a second one of the antenna elements, and an electrically conductive meander line structure interconnecting the first area and the second area, the meander line structure extending along the second side of the substrate opposite a portion of the first side positioned between the first one of the antenna elements and the second one of the antenna elements. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method, comprising:
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operating a wireless communication device including a first antenna, a second antenna spaced apart from the first antenna, and a dielectric substrate, the substrate including a first electrically conductive ground area along the substrate opposite the first antenna and a second electrically conductive ground area along the substrate opposite the second antenna; and suppressing signal coupling between the first antenna and the second antenna by connecting the first area and the second area to an electrical ground structure to provide electrical continuity therewith, the structure extending along the substrate opposite a region between the first antenna and the second antenna, the structure defining a meander line with multiple legs. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method, comprising:
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providing a dielectric substrate for an electronic device; defining an electrical ground region on a first side of the dielectric substrate with a first contiguous area and a second contiguous area; defining a number of dielectric slots along the first side of the substrate between the first area and the second area, the slots being separated from one to the next by a corresponding electrically conductive, grounded pathway in electrical continuity with the first area and the second area; and positioning the slots and the corresponding grounded pathway to suppress surface wave coupling between the first area and the second area. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An apparatus comprising:
- a wireless communication device including;
a dielectric substrate; an electrical ground region defined on a first side of the substrate, the ground region defining a first contiguous electrically conductive area, a second contiguous electrically conductive area, and a number of spaced apart electrical ground interconnecting portions to decrease coupling of surface waves traveling along the substrate, each respective one of the portions including; an electrical connection to the first area and an electrical connection to the second area to provide electrical continuity therewith; several connected legs to define a pathway with a number of turns between the first area and the second area; and a number of dielectric voids in the ground region to separate the legs from one to the next. - View Dependent Claims (20, 21, 22, 23, 24, 25)
- a wireless communication device including;
Specification