Tilted antenna bobbins and methods of manufacture
First Claim
Patent Images
1. An antenna assembly, comprising:
- a bobbin having a cylindrical body defining an outer radial surface, an inner radial surface, and a central axis;
one or more channels defined by the outer radial surface, each channel including a first sidewall, a second sidewall opposite the first sidewall, a floor, and an annular pocket jointly defined by the first sidewall and the floor, the first sidewall extending from the outer radial surface to an intermediate location in the cylindrical body at a first angle and extending from the intermediate location to the floor at a second angle, the first angle being non-orthogonal to the outer radial surface and the second angle being orthogonal to the outer radial surface;
wherein a portion of the first sidewall extending from the intermediate location to the floor at the second angle comprises an angled leg that defines a portion of the annular pocket;
further wherein each channel further includes a first transition surface between the angled leg and the floor and a second transition surface between the second sidewall and the floor; and
a coil including one or more wires wrapped about the bobbin and received within the one or more channels.
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Abstract
An antenna assembly includes a bobbin that provides a cylindrical body that defines an outer radial surface, an inner radial surface, and a central axis. One or more channels are defined on the outer radial surface, and each channel provides a first sidewall, a second sidewall opposite the first sidewall, a floor, and a pocket jointly defined by the first sidewall and the floor. A coil including one or more wires is wrapped about the bobbin and received within the one or more channels.
20 Citations
19 Claims
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1. An antenna assembly, comprising:
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a bobbin having a cylindrical body defining an outer radial surface, an inner radial surface, and a central axis; one or more channels defined by the outer radial surface, each channel including a first sidewall, a second sidewall opposite the first sidewall, a floor, and an annular pocket jointly defined by the first sidewall and the floor, the first sidewall extending from the outer radial surface to an intermediate location in the cylindrical body at a first angle and extending from the intermediate location to the floor at a second angle, the first angle being non-orthogonal to the outer radial surface and the second angle being orthogonal to the outer radial surface; wherein a portion of the first sidewall extending from the intermediate location to the floor at the second angle comprises an angled leg that defines a portion of the annular pocket; further wherein each channel further includes a first transition surface between the angled leg and the floor and a second transition surface between the second sidewall and the floor; and a coil including one or more wires wrapped about the bobbin and received within the one or more channels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An antenna assembly, comprising:
a bobbin comprising; a cylindrical body having an outer radial surface, an inner radial surface, and a central axis; and one or more channels in the cylindrical body, each channel including;
a first sidewall that extends from the outer radial surface to a transition location at a first angle that is non-orthogonal to the outer radial surface, a floor, a second sidewall having a portion that is opposite the first sidewall, and an angled leg that extends from the first sidewall, at the transition location, at a second angle that is different from the first angle, wherein the angled leg and the floor of each channel define an annular pocket in that channel;wherein each channel further includes a first curved transition surface between the angled leg and the floor and a second curved transition surface between the second sidewall and the floor; and a coil including one or more wires wrapped about the bobbin within the one or more channels. - View Dependent Claims (13, 14, 15)
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16. An antenna assembly, comprising:
a bobbin comprising; a cylindrical body having an outer radial surface, an inner radial surface, and a central axis; and one or more channels in the cylindrical body, each channel including;
a first sidewall that extends from the outer radial surface to a transition location at a first angle that is non-orthogonal to the outer radial surface, a floor, a second sidewall having a portion that is opposite the first sidewall, and an angled leg that extends from the first sidewall, at the transition location, at a second angle that is different from the first angle, wherein the angled leg and the floor of each channel define an annular pocket in that channel;wherein each channel further includes a first hard angle transition between the angled leg and the floor and a second hard angle transition between the second sidewall and the floor; and a coil including one or more wires wrapped about the bobbin within the one or more channels. - View Dependent Claims (17, 18, 19)
Specification