Switchable multi-radiator high band antenna apparatus
First Claim
1. A mobile radio frequency communication device, comprising:
- an enclosure and an electronics assembly contained substantially therein, said electronics assembly comprising a ground plane and a first and a second feed port; and
a multiband antenna apparatus, comprising;
a metal cup structure disposed proximate one end of the enclosure and configured to be electrically connected to the ground plane via a first and a second ground element;
a first and a second feed structure;
a ground structure configured to be electrically connected to the ground plane; and
a selector apparatus configured to selectively electrically connect one of (i) the first feed structure to the first feed port or (ii) the second feed structure to the second feed port;
wherein;
the first feed structure is configured to effectuate radio frequency communications within at least one high frequency band and at least one low frequency band;
the second feed structure is configured to effectuate the radio frequency communications within the at least one high frequency band;
the enclosure comprises a chassis and the cup, the cup being electrically separated from the chassis by a non-conductive slot thereby forming an operational antenna portion, the operational portion configured to form a first electromagnetic resonance in at least a second high frequency band;
the second ground element is configured to be connected to the ground plane via a switching circuit comprising two or more alternate electrical signal paths; and
the metal cup structure is configured to form a second electromagnetic resonance in at least a fourth and a third frequency bands.
1 Assignment
0 Petitions
Accused Products
Abstract
Switchable multi-radiator high band antenna apparatus, and methods of tuning and utilizing the same. In one embodiment, the antenna apparatus is configured to operate in lower and upper frequency bands, for use within a handheld mobile device (e.g., cellular telephone or smartphone). In one variant, the antenna apparatus includes a metal cup, two feeding elements, and a ground element. One feeding element is used to tune the antenna in both the lower and the upper bands. The other feed element is used to tune the antenna in the upper band. A switching element is configured to change the signal routing for the feed elements. During device operation, a user'"'"'s body (e.g., hand) may cover or obstruct one of the antenna elements. Responsive to a determination of reduced performance associated with covered/obstructed antenna element, the signal route may be automatically switched to the other element, thereby improving robustness of mobile device communications.
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Citations
21 Claims
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1. A mobile radio frequency communication device, comprising:
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an enclosure and an electronics assembly contained substantially therein, said electronics assembly comprising a ground plane and a first and a second feed port; and a multiband antenna apparatus, comprising; a metal cup structure disposed proximate one end of the enclosure and configured to be electrically connected to the ground plane via a first and a second ground element; a first and a second feed structure; a ground structure configured to be electrically connected to the ground plane; and a selector apparatus configured to selectively electrically connect one of (i) the first feed structure to the first feed port or (ii) the second feed structure to the second feed port; wherein; the first feed structure is configured to effectuate radio frequency communications within at least one high frequency band and at least one low frequency band; the second feed structure is configured to effectuate the radio frequency communications within the at least one high frequency band; the enclosure comprises a chassis and the cup, the cup being electrically separated from the chassis by a non-conductive slot thereby forming an operational antenna portion, the operational portion configured to form a first electromagnetic resonance in at least a second high frequency band; the second ground element is configured to be connected to the ground plane via a switching circuit comprising two or more alternate electrical signal paths; and the metal cup structure is configured to form a second electromagnetic resonance in at least a fourth and a third frequency bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A multiband antenna apparatus for use in a radio communications device, the antenna apparatus comprising:
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a radiator structure disposed so as to substantially envelop one lateral end of the device, and configured to be electrically connected to a ground plane of the device; a first and a second feed structure configured to be selectively connected to a radio frequency feed port; a ground structure, configured to be electrically connected to the ground plane; and a metal cup structure disposed proximate one end of the radio communications device and configured to be electrically connected to the ground plane via a first ground element and a second ground element; wherein; the first feed structure is configured to effectuate radio frequency communications within at least one upper frequency band and at least one lower frequency band; and the second feed structure is configured to effectuate radio frequency communications within the at least one upper frequency band; and the metal cup structure is configured to form an electromagnetic resonance in at least a third frequency band and a fourth frequency band. - View Dependent Claims (18, 19, 20, 21)
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Specification