Chassis-excited antenna apparatus and methods
First Claim
1. An antenna component for use in a portable communications device, the device comprising a ground, a feed port, and a metal structure having a plurality of sides, said component comprising:
- a radiator element having a first dimension and a second dimension, a first and second surface, and configured to be disposed proximate to a first side of said plurality of sides;
a dielectric substrate having a third dimension and a fourth dimension, and configured to be disposed proximate the second surface;
a feed conductor configured to couple to the radiator element at a feed point; and
a dielectric element disposed between the radiator element and the first side and configured to electrically isolate at least a portion of the first side from the radiator element.
2 Assignments
0 Petitions
Accused Products
Abstract
A chassis-excited antenna apparatus, and methods of tuning and utilizing the same. In one embodiment, a distributed loop antenna configuration is used within a handheld mobile device (e.g., cellular telephone). The antenna comprises two radiating elements: one configured to operate in a high-frequency band, and the other in a low-frequency band. The two antenna elements are disposed on different side surfaces of the metal chassis of the portable device; e.g., on the opposing sides of the device enclosure. Each antenna component comprises a radiator and an insulating cover. The radiator is coupled to a device feed via a feed conductor and a ground point. A portion of the feed conductor is disposed with the radiator to facilitate forming of the coupled loop resonator structure.
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Citations
27 Claims
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1. An antenna component for use in a portable communications device, the device comprising a ground, a feed port, and a metal structure having a plurality of sides, said component comprising:
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a radiator element having a first dimension and a second dimension, a first and second surface, and configured to be disposed proximate to a first side of said plurality of sides; a dielectric substrate having a third dimension and a fourth dimension, and configured to be disposed proximate the second surface; a feed conductor configured to couple to the radiator element at a feed point; and a dielectric element disposed between the radiator element and the first side and configured to electrically isolate at least a portion of the first side from the radiator element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An antenna apparatus for use in a portable communications device comprising a metal enclosure having a plurality of sides and housing an electronics comprising a ground and at least one feed port, said antenna apparatus comprising:
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a first antenna assembly configured to operate in a first frequency band, the first assembly comprising; a first radiator element comprising a first ground point and a first feed point, and disposed along a first of the plurality of sides; a first feed conductor coupled to the first feed point and to the at least one feed port; and a first non-conductive cover disposed proximate the first radiator so as to substantially cover the first radiator; and a second antenna assembly configured to operate in a second frequency band, the second assembly comprising; a second radiator element comprising a second ground point and a second feed point, disposed along a second of the plurality of sides; a second feed conductor coupled to the second feed point and to a feed port; and a second non-conductive cover disposed proximate the second radiator so as to substantially cover the second radiator; wherein the first of the plurality of sides is arranged substantially opposite from the second of the plurality of sides. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An antenna component comprising:
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a dielectric substrate having a plurality of surfaces; a conductive coating disposed on at least one surface of the substrate, the conductive coating configured to form; at least a portion of a ground plane, comprising a ground point; a radiator structure comprising; a feed; a first portion; a second portion; a stripline coupled from said second portion to said feed point; and a plurality of non conductive slots isolating substantially separating the strip line from the first portion; and at least one ground clearance area disposed substantially within perimeter of the a t least one surface; wherein the ground point is configured to couple the at least a portion of the ground plane to a ground of a host device; and wherein the second portion is coupled to the first portion via a conductive element. - View Dependent Claims (25, 26)
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27. A mobile communications device, comprising:
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a substantially metallic exterior housing comprising a plurality of sides; an electronics assembly contained substantially therein and comprising a ground and at least one feed port; a first antenna assembly configured to operate in a first frequency band, the first assembly comprising; a first radiator element comprising a first ground point and a first feed point, and disposed along a first of the plurality of sides; a first feed conductor coupled to the first feed point and to the at least one feed port; and a first non-conductive cover disposed proximate the first radiator so as to substantially cover the first radiator; and a second antenna assembly configured to operate in a second frequency band, the second assembly comprising; a second radiator element comprising a second ground point and a second feed point, disposed along a second of the plurality of sides; a second feed conductor coupled to the second feed point and to a feed port; and a second non-conductive cover disposed proximate the second radiator so as to substantially cover the second radiator; wherein; the first ground point and the second ground point are electrically coupled to the metal housing; a first coupled loop resonance structure is formed between at least a portion of the housing, the first radiator, and at least a portion of the first feed cable; and a second coupled loop resonance structure is formed between at least a portion of the housing, the second radiator, and at least a portion of the second feed cable.
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Specification