Wideband low profile spiral-shaped transmission line antenna
AssigneeSkyCross, Inc.
InventorsYoung-Min Jo, Young-Ki Kim, Kyu-Young Han, Sean F. Sullivan, Jay A. Kralovec
Life of this patent
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Abstract
An antenna incorporating slow wave structures. The antenna comprises at least two conductive serpentine structures disposed on a dielectric substrate and further comprising an oppositely disposed conductive top plate electrically connected to the conductive serpentine structures and farther electromagnetically connected thereto. In one embodiment the antenna further comprises a ground plane below the dielectric substrate.
Claims30
An antenna comprising:
- a dielectric substrate;
- a slow wave structure disposed on a first surface of the dielectric substrate;
- a top conductor disposed on a second surface, opposing the first surface of the dielectric substrate;
- and
- a conductive via extending through the dielectric substrate for connecting the slow wave structure to the top conductor.
An antenna comprising:
- a dielectric substrate;
- a slow wave structure disposed on a first surface of the dielectric substrate and further comprising a feed terminal and a ground terminal;
- a top conductor disposed on a second surface, opposing the first surface of the dielectric substrate;
- a conductive via extending through the dielectric substrate for connecting the slow wave structure to the top conductor;
- and
- a ground plane facing and spaced apart from the first surface and electrically connected to the ground terminal.
An antenna comprising:
- a dielectric substrate having first and second opposing surfaces;
- a conductive region disposed on the first surface;
- a first slow wave structure disposed on the second surface and electrically connected to the conductive region;
- a second slow wave structure disposed on the second surface and electrically connected to the conductive region;
- wherein a region of the first slow wave structure forms an antenna ground terminal;
- wherein a region of the second slow wave structure forms an antenna feed terminal;
- and
- a ground plane spaced apart from the dielectric substrate, wherein the second surface is oriented in facing relation to the ground plane.
An antenna for connecting to a communications device, comprising:
- a dielectric substrate having first and second opposing surfaces;
- a conductive region disposed on the first surface;
- a first slow wave structure disposed on the second surface and electrically connected to conductive region;
- a second slow wave structure disposed on the second surface and electrically connected to the conductive region;
- wherein a region of the first slow wave structure forms an antenna ground terminal;
- wherein a region of the second slow wave structure forms an antenna feed terminal;
- a ground plane spaced apart from the dielectric substrate, wherein the second surface is oriented in facing relation to the ground plane;
- and
- a feed line extending from the feed terminal for connection to the communications device, wherein the feed line extends over and is spaced-apart from the ground plane a predetermined distance as determined by the desired performance characteristics of the antenna.
An antenna for connecting to a signal terminal of a communications device, comprising:
- a radiating element;
- a feed terminal connected to the radiating element;
- a ground plane underlying and spaced apart from the radiating element;
- and
- a feed line comprising a first segment downwardly directed from the feed terminal toward the ground plane, a second segment electrically connected to the signal terminal, and a third substantially horizontal segment connecting the first and the third segments, wherein the third segment comprises a conductive plate having a predetermined width and distance to the ground plane so as to achieve the desired antenna performance parameters.
Dependencies are inferred from the claim text.