Independently tunable multiband meanderline loaded antenna
First Claim
Patent Images
1. An antenna for connecting to an underlying ground plane for transmitting and receiving radio frequency energy, comprising;
- a spiral-shaped top plate bounded by one or more edges;
a shorting element extending from the top plate in the direction of the ground plane for electrically connecting the top plate to the ground plane; and
a sidewall extending from a top plate edge in the direction of the ground plane.
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Abstract
An antenna for transmitting and receiving radio frequency energy. The antenna comprises a conductive top plate formed in the shape of a spiral. In one embodiment a sidewall meanderline extends from an edge of the top plate in the direction of a ground plane. A shorting meanderline connects the top plate and the ground plane. A first region of the top plate overlies the ground plane. A second region of the top plate extends beyond the ground plane. Tuning is provided by adjusting the length and other dimensions of the meanderlines.
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Citations
48 Claims
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1. An antenna for connecting to an underlying ground plane for transmitting and receiving radio frequency energy, comprising;
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a spiral-shaped top plate bounded by one or more edges;
a shorting element extending from the top plate in the direction of the ground plane for electrically connecting the top plate to the ground plane; and
a sidewall extending from a top plate edge in the direction of the ground plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An antenna comprising:
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a ground plane;
a spiral top plate further comprising first and second regions, wherein the first region overlies the ground plane;
a feed element in electrical communication with the top plate;
a first meanderline conductor extending from the top plate; and
a second meanderline conductor extending from the top plate. - View Dependent Claims (18, 19, 20, 21, 22)
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23. An antenna for connecting to a spaced-apart ground plane for transmitting and receiving radio frequency energy, comprising;
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a spiral-shaped top plate having one or more edges;
a sidewall extending from a top plate edge in a direction toward the ground plane; and
wherein when operative with the ground plane a first region of the top plate is disposed opposite the ground plane and a second region of the top plate extends beyond an edge of the ground plane. - View Dependent Claims (24, 25, 26, 27, 28, 47)
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29. An antenna for connection to a ground plane for transmitting and receiving radio frequency energy, comprising;
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a spiral-shaped top plate;
a first meanderline element extending from the top plate in a direction of the ground plane for interconnecting the top plate to the ground plane;
a second meanderline element extending from the top plate; and
a sidewall extending from an edge of the top plate. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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45. An antenna for connecting to a spaced-apart ground plane for transmitting and receiving radio frequency energy, comprising;
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a conductive sheet defining a slot therein, wherein the sheet further comprises one or more edges and a first and a second region thereof;
a sidewall extending from a sheet edge in a direction toward the ground plane when the antenna is operative with the ground plane; and
wherein when operative with the ground plane the first region is disposed opposite the ground plane and the second region extends beyond an edge of the ground plane. - View Dependent Claims (46, 48)
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Specification