Wireless communications device pseudo-fractal antenna
DCFirst Claim
1. A pseudo-fractal antenna comprising:
- a transmission line interface;
a dielectric; and
a radiator proximate to the dielectric having an effective electrical length formed in a first pseudo-fractal Geometry, the radiator including at least one section formed in a first fractal geometry and at least one section formed in a first non-fractal geometry, the at least one radiator non-fractal geometry section formed further from the transmission line interface than the at least one radiator fractal geometry section.
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Abstract
A pseudo-fractal antenna is provided comprising a dielectric, and a radiator proximate to the dielectric having an effective electrical length formed in a pseudo-fractal geometry. That is, the radiator includes at least one section formed in a fractal geometry and at least one section formed in a non-fractal geometry. The antenna can be either a monopole or a dipole antenna. For use in a wireless communication telephone, the antenna operating frequency can be approximately 1575 megahertz (MHz), to receive global positioning satellite (GPS) information. In one aspect, the radiator has a fractal geometry section formed as a Koch curve. When the antenna is a dipole, the counterpoise can also be a pseudo-fractal geometry with a section formed in Koch curve fractal geometry section. The radiator can be a conductor embedded in the dielectric. Alternately, the radiator is a conductive line overlying a dielectric layer.
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Citations
52 Claims
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1. A pseudo-fractal antenna comprising:
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a transmission line interface; a dielectric; and a radiator proximate to the dielectric having an effective electrical length formed in a first pseudo-fractal Geometry, the radiator including at least one section formed in a first fractal geometry and at least one section formed in a first non-fractal geometry, the at least one radiator non-fractal geometry section formed further from the transmission line interface than the at least one radiator fractal geometry section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A wireless communications device system comprising:
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a wireless communication device receiver; and a pseudo-fractal antenna including;
a dielectric, a transmission line interface, and a radiator proximate to the dielectric having an effective electrical length formed in a first pseudo-fractal geometry, the radiator including at least one section formed in a first fractal geometry and at least one section formed in a first non-fractal geometry, and the at least one radiator non-fractal geometry section is formed further from the transmission line interface than the fractal geometry section. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A pseudo-fractal dipole printed line antenna comprising:
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a balun antenna feed having a transmission line interface, a lead port, and a lag port 180 degrees out of phase at the antenna operating frequency with the lead port; a dielectric layer; a radiator formed on the dielectric layer in a pseudo-fractal pattern and connected to the balun lead port; and
,a counterpoise formed on the dielectric layer in a pseudo-fractal pattern and connected to the balun lag port. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46)
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47. A method for forming a pseudo-fractal dipole antenna, the method comprising:
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forming a first pseudo-fractal geometry conductive section comprising a first fractal geometry conductive section and a first non-fractal geometry conductive section; forming a radiator from the first pseudo-fractal geometry conductive section, the radiator having an effective electrical length responsive to the combination of the first fractal and the first non-fractal conductive sections, the radiator effective electrical length selected from the group including a quarter-wavelength and a half-wavelength of the antenna operating frequency; forming a counterpoise using a second fractal geometry conductive section and a second non-fractal geometry conductive section, the counterpoise having an effective electrical length responsive to the combination of the counterpoise fractal and non-fractal conductive sections; and forming a dielectric interposed between the counterpoise and the radiator. - View Dependent Claims (48, 49, 50, 51)
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52. A method for forming a pseudo-fractal antenna, the method comprising:
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forming a transmission line interface forming a pseudo-fractal geometry conductive section comprising a fractal geometry conductive section and a non-fractal geometry conductive section; forming a radiator from the pseudo-fractal geometry conductive section, wherein the non-fractal geometry section is formed further from the transmission line interface than the fractal geometry section; and locating the antenna proximate a dielectric, wherein the antenna has an effective electrical length.
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Specification