Circular Polarized Antennas
First Claim
Patent Images
1. An apparatus comprising:
- at least one multi-layer antenna structure including a radiating element and a single feed line connected to the radiating element,the radiating element having a non-symmetrical outer perimeter shape;
wherein the antenna structure emits circularly polarized radiation.
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Abstract
An apparatus comprising at least one antenna for transmission and/or reception of circularly polarized electromagnetic radiation. The antenna includes a radiating element and a single feed line. The single feed line is coupled between the radiating element and a circuit that drives the antenna. The radiating element has a non-symmetrical outer perimeter shape. The radiating element may include an aperture. The antenna may further include a ground element and a supplemental ground feed structure, the supplemental ground feed structure located between the radiating element and the ground element.
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Citations
27 Claims
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1. An apparatus comprising:
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at least one multi-layer antenna structure including a radiating element and a single feed line connected to the radiating element, the radiating element having a non-symmetrical outer perimeter shape; wherein the antenna structure emits circularly polarized radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising:
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a patch antenna including means for emitting a circularly polarized electromagnetic radiation having a center wavelength λ and
means for singly feeding the means for emitting,the means for emitting having a non-symmetrical outer perimeter shape; wherein the means for singly feeding is electrically coupled between the means for emitting and a circuit that drives the patch antenna. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. An antenna comprising:
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a radiating element having a non-symmetrical outer perimeter shape; a ground element; a supplemental ground feed structure electrically coupled to the ground element; wherein the supplemental ground feed structure is located between the radiating element and the ground element. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27)
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Specification