Pivotable multiple frequency band antenna with capacitive coupling
AssigneeEricsson Inc.
InventorsGerard James Hayes, Kim Rutkowski, Charles Rudisill, Russell Evans Winstead
Life of this patent
Estimating the term…
Abstract
Multiple frequency band antennas are pivotally connected to electronic devices such that coaxial connectors are not required. A dielectric substrate, including a plurality of radiating elements disposed thereon, is pivotally connected to an electronic device housing so as to have a predetermined path of rotation from a first position to a second position. At least one of the radiating elements disposed on the dielectric substrate is maintained in a substantially constant spaced-apart relationship with a conductive element disposed within the housing throughout the predetermined path so as to be capacitively coupled with the conductive element.
Claims26
A multiple frequency band antenna system for an electronic device, said electronic device comprising a housing enclosing a transceiver for transmitting and receiving radiotelephone communication signals, said multiple frequency band antenna system comprising:
- a dielectric substrate;
- a grounded conductive element disposed within said housing;
- first and second radiating elements disposed on said dielectric substrate, wherein said second radiating element is parasitically coupled with said first radiating element and wherein said second radiating element is capacitively coupled with said grounded conductive element;
- means for pivotally connecting said dielectric substrate to said housing such that said dielectric substrate pivots along a predetermined path of rotation from a first position to a second position, and such that said second radiating element maintains a substantially constant spaced-apart relationship with said grounded conductive element throughout said predetermined path of rotation so as to be capacitively coupled with said grounded conductive element throughout said predetermined path of rotation such that an impedance of said second radiating element is matched with an impedance of the transceiver throughout said predetermined path of rotation;
- and
- means for electrically connecting said first radiating element to said transceiver throughout said predetermined path of rotation.
A multiple frequency band antenna system for an electronic device, said electronic device comprising a housing enclosing a transceiver for transmitting and receiving radiotelephone communication signals, said housing comprising an elongated planar side portion, said multiple frequency band antenna system comprising:
- a grounded conductive element disposed within said housing;
- an elongated dielectric substrate comprising a proximal end, a distal end, and a face;
- a first radiating element disposed on said dielectric substrate;
- a second radiating element disposed on said dielectric substrate face wherein said second radiating element is parasitically coupled with said first radiating element, and wherein said second radiating element is capacitively coupled with said grounded conductive element;
- means for pivotally connecting said dielectric substrate proximal end to said planar side portion such that said dielectric substrate pivots along a predetermined path of rotation from a first position to a second position, and such that said second radiating element maintains a substantially constant spaced-apart relationship with said grounded conductive element throughout said predetermined path of rotation so as to be capacitively coupled with said grounded conductive element throughout said predetermined path of rotation such that an impedance of said second radiating element is matched with an impedance of the transceiver throughout said predetermined path of rotation;
- and
- means for electrically connecting said first radiating element to said transceiver throughout said predetermined path of rotation.
A multiple frequency band antenna system for an electronic device, said electronic device comprising a housing enclosing a transceiver for transmitting and receiving radiotelephone communication signals, said multiple frequency band antenna system comprising:
- a dielectric substrate;
- a conductive element disposed within said housing, said conductive element electrically connected to said transceiver;
- first and second radiating elements disposed on said dielectric substrate, wherein said second radiating element is parasitically coupled with said first radiating element and wherein said first radiating element is capacitively coupled with said conductive element;
- means for pivotally connecting said dielectric substrate to said housing such that said dielectric substrate pivots along a predetermined path of rotation from a first position to a second position, and such that said first radiating element maintains a substantially constant spaced apart relationship with said conductive element throughout said predetermined path of rotation so as to be capacitively coupled with said conductive element throughout said predetermined path of rotation such that an impedance of said first radiating element is matched with an impedance of the transceiver throughout said predetermined oath of rotation;
- and
- means for electrically connecting said second radiating element to ground throughout said predetermined path of rotation.
An electronic device, comprising:
- a housing enclosing a transceiver for transmitting and receiving radiotelephone communication signals;
- and
- a multiple frequency band antenna system comprising:
- a grounded conductive element disposed within said housing;
- an elongated dielectric substrate;
- first and second radiating elements disposed on said dielectric substrate, wherein said second radiating element is parasitically coupled with said first radiating element and wherein said second radiating element is capacitively coupled with said grounded conductive element;
- means for pivotally connecting said dielectric substrate to housing such that said dielectric substrate pivots along a predetermined path of rotation from a first position to a second position, and such that said second radiating element maintains a substantially constant spaced-apart relationship with said grounded conductive element throughout said predetermined path of rotation so as to be capacitively coupled with said grounded conductive element throughout said predetermined path of rotation such that an impedance of said second radiating element is matched with an impedance of the transceiver throughout said predetermined path of rotation;
- and
- means for electrically connecting said first radiating element to said transceiver throughout said predetermined path of rotation.
Dependencies are inferred from the claim text.