ANTENNA ASSEMBLY UTILIZING METAL-DIELECTRIC STRUCTURES
First Claim
1. An antenna assembly for a wireless communication device that produces a radio frequency signal, said antenna assembly comprising:
- a ground plane;
an antenna disposed proximate to the ground plane and having a structure that is resonant at a first frequency, wherein the antenna has a port for receiving the radio frequency signal; and
at least one metal-dielectric structure disposed proximate to the antenna and resonating at a given frequency, wherein the at least one metal-dielectric structure alters resonance of the antenna to resonate at a second frequency.
4 Assignments
0 Petitions
Accused Products
Abstract
An antenna assembly for a wireless communication device includes a substrate of dielectric material that has opposing first and second surfaces. A ground plane formed by a layer of electrically conductive material on the first surface. An antenna with a physical length is disposed on the substrate. At least one metal-dielectric structure is disposed on the substrate. The metal-dielectric structures resonate so as to interact with the antenna and thereby alter the effective electrical length of the antenna. That interaction causes the antenna to function as though it had a greater physical length. In one embodiment, that interaction enables an antenna, that is shorter than one-fourth the wavelength of a radio frequency signal applied thereto, to function as through the physical length of the antenna was one-fourth that wavelength.
-
Citations
24 Claims
-
1. An antenna assembly for a wireless communication device that produces a radio frequency signal, said antenna assembly comprising:
-
a ground plane; an antenna disposed proximate to the ground plane and having a structure that is resonant at a first frequency, wherein the antenna has a port for receiving the radio frequency signal; and at least one metal-dielectric structure disposed proximate to the antenna and resonating at a given frequency, wherein the at least one metal-dielectric structure alters resonance of the antenna to resonate at a second frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An antenna assembly for a wireless communication device comprising:
-
a substrate of dielectric material and having a first surface and a second surface on opposite sides of the substrate; a ground plane formed by a layer of electrically conductive material on the first surface; an antenna disposed on the substrate and having a physical length; and a plurality of metal-dielectric structures forming a non-periodic array disposed on the substrate, wherein each metal-dielectric structure interacts with the antenna wherein as a result the antenna has an effective electrical length that is greater than the physical length. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
-
Specification