Miniature Circularly Polarized Folded Patch Antenna
First Claim
Patent Images
1. An antenna element formed from a conductor that is shaped to provide a first layer, a wall layer, and a second layer, wherein the second layer comprises a plurality of arms under the first layer, and wherein asymmetries are present in the antenna element so that the antenna element is configured to generate and receive circularly polarized signals.
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Abstract
An antenna system comprising a ground plane, an antenna element folded under itself and operable to transmit and receive circularly polarized signals, an air filled cavity disposed between the ground plane and the antenna element, and a radio frequency module in communication with the antenna element.
44 Citations
28 Claims
- 1. An antenna element formed from a conductor that is shaped to provide a first layer, a wall layer, and a second layer, wherein the second layer comprises a plurality of arms under the first layer, and wherein asymmetries are present in the antenna element so that the antenna element is configured to generate and receive circularly polarized signals.
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9. A miniature folded patch antenna comprising:
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an antenna element formed from a conductor that is shaped to provide a first layer, a wall layer, and a second layer, wherein the second layer comprises a plurality of arms under the first layer, and wherein asymmetries are present in the antenna element so that the antenna element is configured to generate and receive circularly polarized signals; a ground plane separated from the antenna element by a spacer layer; and a feed element between the antenna element and the ground plane. - View Dependent Claims (10, 11)
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12. An antenna element comprising:
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a conductive patch formed on a first printed circuit board; a series of conductive patches on a second printed circuit board, wherein the conductive patch on the first printed circuit board is coupled to the series of conductive patches on the second printed circuit board by a plurality of conducting pins; and wherein an asymmetry is present in the antenna element configuring the antenna element to transmit and receive circularly polarized signals. - View Dependent Claims (13, 14, 15, 16)
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17. A patch antenna comprising:
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a conductive patch formed on a first printed circuit board; a series of conductive patches on a second printed circuit board, wherein the conductive patch on the first printed circuit board is coupled to the series of conductive patches on the second printed circuit board by a plurality of conducting pins, wherein an asymmetry is present in the series of conductive patches configuring the antenna element to transmit and receive circularly polarized signals; a ground plane separated from the antenna element by a spacer layer; and a radio frequency module in communication with the antenna element and transmitting and receiving radio waves through the first antenna element. - View Dependent Claims (18, 19)
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- 20. An antenna element formed from a single conductor that is shaped to provide a first layer, a wall layer, and a second layer, wherein the second layer comprises a plurality of arms folded under the first layer, and wherein asymmetries are present in the antenna element so that the antenna element is configured to generate and receive circularly polarized signals.
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24. A method of making a radiating element for a patch antenna comprising:
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providing a flat conductor; forming an antenna element from the flat conductor, wherein a pattern of the antenna element includes a plurality of slots and asymmetries that cause a signal fed to the antenna element to degenerate into two modes; and manipulating the antenna element about a first set of generally parallel fold lines so as to form a top layer, a wall layer, and a bottom layer. - View Dependent Claims (25, 26, 27, 28)
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Specification