HANDHELD ELECTRONIC DEVICES WITH ISOLATED ANTENNAS
First Claim
1. A handheld electronic device, comprising:
- a housing having lateral dimensions;
a substantially rectangular ground plane element having lateral dimensions substantially equal to the lateral dimensions of the housing, wherein portions of the rectangular ground plane element define a dielectric-filled rectangular slot at one end of the rectangular ground plane element; and
first and second antennas having respective first and second antenna resonating elements, wherein the first antenna comprises a hybrid planar-inverted-F and slot antenna in which the first antenna resonating element comprises a planar resonating element that is located above the slot, wherein the planar resonating element comprises an isolation element that resonates at a common frequency with the second antenna and reduces interference between the second antenna and the first antenna during simultaneous operation of the first and second antennas.
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Accused Products
Abstract
Handheld electronic devices are provided that contain wireless communications circuitry having at least first and second antennas. An antenna isolation element reduces signal interference between the antennas, so that the antennas may be used in close proximity to each other. A planar ground element may be used as a ground by the first and second antennas. The first antenna may be formed using a hybrid planar-inverted-F and slot arrangement in which a planar resonating element is located above a rectangular slot in the planar ground element. The second antenna may be formed from an L-shaped strip. The planar resonating element of the first antenna may have first and second arms. The first arm may resonate at a common frequency with the second antenna and may serve as the isolation element. The second arm may resonate at approximately the same frequency as the slot portion of the hybrid antenna.
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Citations
5 Claims
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1. A handheld electronic device, comprising:
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a housing having lateral dimensions; a substantially rectangular ground plane element having lateral dimensions substantially equal to the lateral dimensions of the housing, wherein portions of the rectangular ground plane element define a dielectric-filled rectangular slot at one end of the rectangular ground plane element; and first and second antennas having respective first and second antenna resonating elements, wherein the first antenna comprises a hybrid planar-inverted-F and slot antenna in which the first antenna resonating element comprises a planar resonating element that is located above the slot, wherein the planar resonating element comprises an isolation element that resonates at a common frequency with the second antenna and reduces interference between the second antenna and the first antenna during simultaneous operation of the first and second antennas. - View Dependent Claims (2, 3, 4, 5)
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Specification