Claims
- 1. A wireless communications device, comprising:a printed circuit board including electrical components; a short-range communications antenna formed by the arrangement of 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.
- 2. The wireless communications device according to claim 1, further comprising:a shield isolating the cellular phone antenna from signal noise generated by signals carried by the trace and from short-range communications signals transmitted or received by the trace.
- 3. The wireless communications device according to claim 1, wherein the short-range communications antenna is a Bluetooth antenna.
- 4. The wireless communications device according to claim 1, wherein the trace is a signal trace.
- 5. The wireless communications device according to claim 1, wherein the trace is connected to a ground plane.
- 6. The wireless communications device according to claim 1, wherein the trace further comprises branches electrically connected to each other and composed of conducting material.
- 7. The wireless communications device according to claim 6, wherein the short-range communications antenna comprises a specific absorption rate element forming part of the wireless device's electrical circuitry.
- 8. The wireless communications device according to claim 7, wherein the specific absorption rate element is formed from the same conducting material as other branches comprising the trace.
- 9. The wireless communications device according to claim 8, wherein the specific absorption rate element is a specific absorption rate bracket.
- 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, the trace being connected to a specific absorption rate bracket; and wherein the short-range communications antenna comprises the specific absorption rate bracket.
- 11. 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.
- 12. The wireless communications device according to claim 11, wherein the non-linear responses include frequency dependent impedance variations.
- 13. The wireless communications device according to claim 11, wherein the trace is disposed in a meandering pattern on at least one side of the printed circuit board.
- 14. The wireless communications device according to claim 11, wherein the short-range radio antenna is a Bluetooth antenna.
- 15. The wireless communications device according to claim 11, further comprising: a shield isolating the cellular antenna from signal noise generated by signals carried by the trace and from Bluetooth signals transmitted or received by the trace.
- 16. The wireless communications device according to claim 15, wherein the shield isolates the Bluetooth antenna from cellular signals received or transmitted by the cellular antenna.
- 17. The wireless communications device according to claim 11, wherein the trace further comprises branches electrically connected to each other and composed of conducting material.
- 18. The wireless communications device according to claim 17, wherein at least one of the branches is a specific absorption rate element.
- 19. The wireless communications device according to claim 18, wherein the specific absorption rate element is a specific absorption rate bracket.
- 20. The wireless communications device according to claim 11, wherein the compensation module includes an impedance matching module disposed between radio-frequency integrated circuit and the trace.
- 21. The wireless communications device according to claim 11, wherein the impedance matching module matches an impedance of the radio-frequency integrated circuit as seen from the impedance matching module to an impedance of the short-range radio antenna as seen from the impedance matching module.
- 22. 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 and on which the trace is arranged.
- 23. The device according to claim 22, wherein the trace is adapted to be a quasi-isotropic antenna.
- 24. The device according to claim 22, wherein the trace is adapted to be a Bluetooth antenna.
- 25. The device according to claim 22, further comprising: an electrical ground plane connected to the trace and providing a ground potential to the electrical components via the trace.
- 26. The device according to claim 22, further comprising: a signal source connected to the trace and providing electrical signals to the electrical components via the trace.
- 27. The device according to claim 22, wherein the printed circuit board has a front side and a rear side, the trace being disposed on both the front side and the rear side of the printed circuit board.
- 28. The device according to claim 22, wherein the trace is disposed in a convoluted pattern on at least one side of the printed circuit board.
- 29. The device according to claim 22, wherein the trace is disposed in a meandering pattern on at least one side of the printed circuit board.
- 30. The device according to claim 22, wherein the trace meanders across at least two sides of the printed circuit board.
- 31. The wireless communications device according to claim 22, wherein the trace further comprises branches formed of conducting material.
- 32. The wireless communication device of claim 31, wherein at least one of the branches is a specific absorption rate element.
- 33. The wireless communication device of claim 32, wherein the specific absorption rate element is a specific absorption rate bracket.
- 34. 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; compensating for non-linear responses of the microstrip to Bluetooth signals with a tuning circuit; and using the trace and the specific absorption rate element as a Bluetooth short-range antenna.
- 35. The method according to claim 34, wherein the step of printing includes the step of printing the trace on at least two sides of the printed circuit board.
- 36. The method according to claim 34, wherein the step of compensating for non-linear response includes the step of compensating for frequency dependent impedance variations.
Parent Case Info
This application is a Continuation in Part of patent application Ser. No. 09/881,611 filed Jan. 14, 2001 now U.S. Pat. No. 6,441,790.
US Referenced Citations (6)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
09/881611 |
Jun 2001 |
US |
Child |
10/227036 |
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US |