Tuning antennas with finite ground plane
First Claim
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1. A method of changing a resonant frequency of an antenna, comprising:
- coupling the antenna to a ground plane of a circuit board, where the ground plane comprises a conductive material; and
removing or omitting a section of conductive material in a first shape from a first location of the ground plane, where the first shape and the first location determine the resonant frequency of the antenna and where removing or omitting the section of conductive material in the first shape produces a cut in the ground plane;
connecting a first circuit component to a first side of the cut in the ground plane and to a second side of the cut in the ground plane at a first position relative to the cut; and
connecting a second circuit component to the first side of the cut in the ground plane and to the second side of the cut in the ground plane at a second position relative to the cut that is different than the first position.
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Abstract
A method of changing a resonant frequency of an antenna includes coupling the antenna to a ground plane of a circuit board, where the ground plane includes conductive material. The method further includes removing a section of conductive material from a first location of the ground plane, where the shape of the removed section and the first location determine the resonant frequency of the antenna.
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Citations
22 Claims
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1. A method of changing a resonant frequency of an antenna, comprising:
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coupling the antenna to a ground plane of a circuit board, where the ground plane comprises a conductive material; and removing or omitting a section of conductive material in a first shape from a first location of the ground plane, where the first shape and the first location determine the resonant frequency of the antenna and where removing or omitting the section of conductive material in the first shape produces a cut in the ground plane; connecting a first circuit component to a first side of the cut in the ground plane and to a second side of the cut in the ground plane at a first position relative to the cut; and connecting a second circuit component to the first side of the cut in the ground plane and to the second side of the cut in the ground plane at a second position relative to the cut that is different than the first position. - View Dependent Claims (2, 3, 4)
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5. An apparatus, comprising:
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a ground plane formed in a first shape from conductive material on a circuit board shape, where a section of the ground plane at a first location has been omitted or removed to produce a cut in the ground plane in a second shape; a first circuit component connected to a first side of the cut in the ground plane and to a second side of the cut in the ground plane at a first position relative to the cut; a second circuit component connected to the first side of the cut in the ground plane and to the second side of the cut in the ground plane at a second position relative to the cut that is different than the first position; and an antenna coupled to the ground plane. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus, comprising:
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a ground plane formed in a first shape from conductive material on a circuit board, where a section of the ground plane at a first location has been omitted or removed to produce a cut in the ground plane in a second shape; an antenna coupled to the ground plane; a first circuit component connected in series with a first switch to a first side of the cut in the ground plane and to a second side of the cut in the ground plane at a first position; and a second circuit component connected in series with a second switch to the first side of the cut in the ground plane and to the second side of the cut in the ground plane at a second position that differs from the first position. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification