Antenna coupler for a portable radiotelephone
First Claim
1. An antenna coupler for coupling radio frequency signals from a communication device having an antenna and at least one externally accessible ground point, said antenna coupler comprising:
- a ground plane;
means, mounted on a top face of said ground plane, for coupling radio signals to and from said antenna; and
at least one ground pin, coupled to said top face of said ground plane, for contacting said externally accessible ground point.
1 Assignment
0 Petitions
Accused Products
Abstract
A novel and improved antenna coupler useful in an adapter for a portable radiotelephone. In a first embodiment, a plurality of curved bands of metal are positioned on a ground plane, with at least one of the plurality of curved bands of metal being electrically isolated from the ground plane so as to couple RF signals to and from the antenna of a portable telephone. At least one ground pin is also mounted on the ground plane. When a portable radiotelephone is interfaced with the antenna coupler, the at least one ground pin makes electrical contact with assembly screws or an external ground pad of a battery charging port on the portable radiotelephone. In a second embodiment, a coupling pin makes direct contact with an component of the RF chain of the portable radiotelephone. In a third embodiment, a helical coupler surrounds the antenna of the portable radiotelephone.
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Citations
23 Claims
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1. An antenna coupler for coupling radio frequency signals from a communication device having an antenna and at least one externally accessible ground point, said antenna coupler comprising:
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a ground plane; means, mounted on a top face of said ground plane, for coupling radio signals to and from said antenna; and at least one ground pin, coupled to said top face of said ground plane, for contacting said externally accessible ground point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An antenna coupler for coupling radio frequency signals from a communication device having an antenna and at least one externally accessible ground point, said antenna having an electrically conductive internal portion encased in an insulative material, said antenna coupler comprising:
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a ground plane; a metal pin, mounted on a top face of said ground plane, for coupling radio signals to and from said antenna; and at least one ground pin, coupled to said top face of said ground plane, for contacting said externally accessible ground point. - View Dependent Claims (12, 13)
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14. A communication device adapter for coupling radio frequency signals from a communication device having an antenna and at least one externally accessible ground point, said communication device adapter comprising:
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a base element having a ground plane; means, mounted on a top face of said ground plane, for coupling radio signals to and from said antenna; at least one ground pin, coupled to said top face of said ground plane, for contacting said externally accessible ground point; and a housing assembly, enclosing said base element, said housing assembly having a receptacle on a top face for receiving said communication device such that said antenna is positioned in proximity to said means for coupling radio signals and said at least one ground pin contacts said externally accessible ground point. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification