Composite antenna for cellular and gps communications
First Claim
1. An antenna comprising:
- a first electrically conductive disc;
a second electrically conductive disc of substantially the same size as said first electrically conductive disc and aligned substantially in parallel therewith;
first means for application of an electrical signal to and at a substantially geometric center of one of said first and second electrically conductive discs;
a plurality of electrically conductive shunts, each of said shunts being electrically connected at a first end thereof to said first electrically conductive disc to a point on a perimeter of said first electrically conductive disc and at a second end thereof to said second electrically conductive disc to a point on a perimeter of said second electrically conductive disc,whereby said second electrically conductive disc and said first electrically conductive disc are spaced from each other by a volume of free space.
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0 Petitions
Accused Products
Abstract
A composite antenna comprising a first and second antenna suitable for transceiving independent signals in the cellular communication and GPS bands. The first antenna has upper and lower electrically conductive discs of substantially the same size aligned substantially in parallel, a first means for application of a first electrical signal between and at substantially geometric centers of the discs, and a plurality of electrically conductive shunts. The second (GPS) antenna is attached atop the upper electrically conductive disc and has a second means for application of a second electrical signal to the GPS antenna which traverses the electrically conductive discs whereby there is no significant degradation in performance of either the first cellular antenna or the second GPS antenna. The shunts are electrically connected to the first electrically conductive disc and the second electrically conductive disc, whereby the first and second electrically conductive discs are spaced from each other by a volume of free space or a volume occupied by a dielectric material. Also described is an antenna for cellular communications alone, with first and second electrically conductive discs spaced from each other by a volume of free space or a volume occupied by a dielectric material, without the second GPS antenna.
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Citations
44 Claims
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1. An antenna comprising:
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a first electrically conductive disc; a second electrically conductive disc of substantially the same size as said first electrically conductive disc and aligned substantially in parallel therewith; first means for application of an electrical signal to and at a substantially geometric center of one of said first and second electrically conductive discs; a plurality of electrically conductive shunts, each of said shunts being electrically connected at a first end thereof to said first electrically conductive disc to a point on a perimeter of said first electrically conductive disc and at a second end thereof to said second electrically conductive disc to a point on a perimeter of said second electrically conductive disc, whereby said second electrically conductive disc and said first electrically conductive disc are spaced from each other by a volume of free space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An antenna comprising:
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a cylindrical substrate of a dielectric material having an upper surface, a lower surface, and a cylindrical side surface disposed therebetween; a first electrically conductive layer disposed on said upper surface of said substrate; a second electrically conductive layer disposed on said lower surface of said substrate; means for application of an electrical signal between and at substantially geometric centers of said first and second electrically conductive layers; and a plurality of electrically conductive shunts electrically connected to said first and second electrically conductive layers, each of said electrically conductive shunts being located on a perimeter of said substrate. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. A composite antenna comprising:
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a first antenna which comprises a first electrically conductive disc; a second electrically conductive disc of substantially similar size to said first electrically conductive disc and aligned substantially in parallel therewith; a first means for application of a first electrical signal to and at a substantially geometric center of one of said first and second electrically conductive discs; a second means for application of a grounding signal to the other of said first and second electrically conductive discs; a plurality of electrically conductive shunts, each of said shunts being electrically connected at a first end thereof to said first electrically conductive disc and at a second end thereof to said second electrically conductive disc, whereby said second electrically conductive disc and said first electrically conductive disc are spaced from each other by a volume of free space; and a second antenna attached atop said first electrically conductive disc which comprises a second means for application of a second electrical signal to said second antenna which traverses said electrically conductive discs. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A composite antenna comprising:
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a first antenna comprising a cylindrical substrate comprising a dielectric material having an upper surface, a lower surface, and a cylindrical side surface disposed therebetween; a first electrically conductive layer disposed on said upper surface of said cylindrical substrate; a second electrically conductive layer disposed on said lower surface of said cylindrical substrate; a first means for application of a first electrical signal between and at substantially geometric centers of said first and second electrically conductive layers; a plurality of electrically conductive shunts electrically connected to said first and second electrically conductive layers; and a second antenna attached atop said first electrically conductive layer which comprises a second means for application of a second electrical signal to said second antenna which traverses said electrically conductive discs. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification