System and method for providing a quasi-isotropic antenna
AssigneeKyocera Wireless Corp.
InventorsTim Forrester, Robert Bruce Ganton
Life of this patent
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Abstract
A system and method for wireless communications includes a wireless communications device. The wireless communications device includes a microstrip, line or trace that has been structured to electrically connect to electrical circuitry and electrical components of the wireless communications device and has been adapted to transmit and to receive wirelessly a short-range wireless communications signal. The microstrip, line or trace is formed from branches of conducting material. One or more of the branches may include a specific absorption rate element, such as a specific absorption rate bracket.
Claims39
A wireless communications device, comprising:
- a printed circuit board including electrical components;
- a short-range communications antenna comprising a trace for the printed circuit board;
- a cellular phone antenna;
- and
- wherein the trace is adapted to provide signals to the electrical components of the printed circuit board
10 A wireless communications device, comprising:
- a printed circuit board including electrical components;
- a short-range communications antenna comprising a trace for the printed circuit board;
- a cellular phone antenna;
- and
- wherein the trace is adapted to provide signals to the electrical components of the printed circuit board;
- and
- wherein the short-range communications antenna comprises a specific absorption rate bracket.
A wireless communications device, comprising:
- a printed circuit board including electrical elements;
- a radio-frequency integrated circuit (RFIC) disposed on the printed circuit board;
- a compensation module coupled to the RFIC and including a tuning circuit;
- a trace disposed on at least one side of the printed circuit board and coupled to the compensation module, the trace providing a signal to the electrical elements of the printed circuit board, the trace being a short-range radio antenna,
- wherein the tuning circuit compensates for non-linear responses of the short-range radio antenna to radio-frequency signals;
- and
- a cellular antenna.
A short-range wireless communications device, comprising:
- electrical components;
- a trace adapted to be a short-range antenna and structured to provide signals to the electrical components;
- and
- a printed circuit board on which the electrical components are mounted.
A Bluetooth antenna in a handheld wireless communications device, comprising:
- a meandering trace that has been adapted to radiate with a short-range quasi-omni-directional radiation pattern.
A method for adapting a trace to be a Bluetooth antenna in a handheld wireless communications device, comprising the steps of:
- providing a printed circuit board adapted for electrical connection to a cellular antenna and to electrical components;
- printing the trace in a meandering pattern on the printed circuit board of the handheld wireless communications device, wherein the trace provides signals to the electrical components and acts as a short-range communications antenna;
- providing a specific absorption rate element, wherein the specific absorption rate element is electrically connected to the trace;
- impedance matching the trace with a Bluetooth integrated circuit;
- and
- compensating for non-linear responses of the microstrip to Bluetooth signals with a tuning circuit.
Dependencies are inferred from the claim text.