Slotted ground-plane used as a slot antenna or used for a PIFA antenna
First Claim
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1. A handheld wireless device comprising:
- an antenna system comprising a substantially rectangular printed circuit board including a ground plane having a first portion, a second portion, and a third portion;
the first portion and the second portion defines a slot therebetween;
the first portion and the second portion are connected through the ground plane itself by the third portion;
at least one feeding means is arranged in a vicinity of the slot to drive the slot; and
a set of connecting means are arranged with respect to the slot so as to define a plurality of locations in the vicinity of the slot on which at least one electrical component can be placed to modify the electromagnetic behavior of the antenna system to provide operation in at least two frequency bands.
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Abstract
A wireless device includes a ground plane with at least two portions. On each of the at least two portions at least one connecting means is provided. The two connecting means are connected with an electric component for connecting the at least two portions of the ground plane. The ground plane is partially covered with an insulating material and the connecting means are given by a part of the ground plane which is not covered by any insulating material.
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Citations
20 Claims
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1. A handheld wireless device comprising:
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an antenna system comprising a substantially rectangular printed circuit board including a ground plane having a first portion, a second portion, and a third portion; the first portion and the second portion defines a slot therebetween; the first portion and the second portion are connected through the ground plane itself by the third portion; at least one feeding means is arranged in a vicinity of the slot to drive the slot; and a set of connecting means are arranged with respect to the slot so as to define a plurality of locations in the vicinity of the slot on which at least one electrical component can be placed to modify the electromagnetic behavior of the antenna system to provide operation in at least two frequency bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A handheld wireless device comprising:
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a substantially rectangular printed circuit board including a ground plane; a first radiating element operating in cooperation with the ground plane; a second radiating element operating in cooperation with the ground plane; the substantially rectangular printed circuit board includes a plurality of shorting means connected to the ground plane and at least a first feeding means and a second feeding means; said at least first feeding means couples electromagnetic signals to the first radiating element and the second feeding means couples electromagnetic signals to the second radiating element; said plurality of shorting means, the first feeding means, and the second feeding means are provided substantially close to a side of the substantially rectangular printed circuit board; and the first radiating element operates in at least two frequency bands and the second radiating element operates in at least one frequency band. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A clamshell-type handheld wireless device comprising:
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an upper housing and a lower housing hinged to one another which can be folded together into a clamshell configuration; the lower housing enclosing a lower circuit board; the upper housing comprising a first portion of a substantially rectangular ground plane and the lower circuit board comprising a second portion of the substantially rectangular ground plane; the first portion and the second portion being connected by a connecting means; the first portion and the second portion defining a slot therebetween; and wherein at least two shorting means are arranged in a vicinity of the slot to provide connection to the substantially rectangular ground plane.
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Specification