Antenna with periodic electromagnetic mode suppression structures and method for same
First Claim
1. A method for forming an antenna with periodic electromagnetic structures, the method comprising:
- forming a radiator;
forming a first dielectric, with a first dielectric constant, proximate to the radiator;
at a first resonant frequency, propagating a radiating mode; and
, using a predetermined periodic pattern in an antenna element, suppressing the propagation of a non-radiating mode at the first resonant frequency.
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Accused Products
Abstract
A family of antennas, and a method for the same, are provided. The antennas include periodic electromagnetic structures to suppress non-radiating modes of propagation. Each antenna comprises a radiator resonant at a first frequency. A first dielectric is proximate to the radiator. Typically, a counterpoise is formed to the radiator. The periodic electromagnetic structures propagate a radiating mode, and suppress the propagation of a non-radiating mode. The periodic electromagnetic structures can be formed in the radiator, the counterpoise (when the counterpoise is distinctly distinguishable from the radiator), or in the first dielectric. The electromagnetic structures are a pattern of volumetric dielectric blocks having a predetermined shape and a predetermined spacing between blocks. For example, the shapes can be cylindrical blocks having predetermined diameters, cross-shaped blocks having predetermined arm widths and arm lengths, rectangular blocks having predetermined lengths and widths, or semi-spherical blocks having predetermined diameters.
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Citations
66 Claims
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1. A method for forming an antenna with periodic electromagnetic structures, the method comprising:
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forming a radiator;
forming a first dielectric, with a first dielectric constant, proximate to the radiator;
at a first resonant frequency, propagating a radiating mode; and
,using a predetermined periodic pattern in an antenna element, suppressing the propagation of a non-radiating mode at the first resonant frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. An antenna with periodic electromagnetic structures, the antenna comprising:
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a radiator resonant at a first frequency;
a first dielectric, with a first dielectric constant, proximate to the radiator; and
,a plurality of periodic electromagnetic structures propagating a radiating mode, and suppressing the propagation of a non-radiating mode. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66)
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59. The antenna of claim 67 in which the antenna is a patch;
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wherein the radiator is a first conductive panel;
wherein the counterpoise is a second conductive panel, parallel to the first panel;
wherein the first dielectric is a layer interposed between the first and second parallel panels.
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Specification