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A system comprising at least one antenna and a circuit, wherein the circuit is at least in part not a semiconductor chip or a die. The at least one antenna and the circuit are arranged on a package. Alternatively described is a system comprising at least one antenna and at least one circuit, wherein

A system comprising at least one antenna and a circuit, wherein the circuit is at least in part not a semiconductor chip or a die. The at least one antenna and the circuit are arranged on a package. Alternatively described is a system comprising at least one antenna and at least one circuit, wherein the at least one antenna and the at least one circuit are arranged on a package, wherein the at least one circuit performs a radio-frequency and optionally a base-band and/or a digital functionality.

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The invention claimed is: 1. System comprising: an antenna and an electrical circuit, wherein the antenna and the electrical circuit are arranged in an integrated circuit package, wherein the antenna comprises a conducting pattern, at least a portion of which includes a curve comprising at least fi

The invention claimed is: 1. System comprising: an antenna and an electrical circuit, wherein the antenna and the electrical circuit are arranged in an integrated circuit package, wherein the antenna comprises a conducting pattern, at least a portion of which includes a curve comprising at least five segments, each of said at least five segments forming a pair of angles with a respective adjacent segment in said curve, at least three of said segments being shorter than one-tenth of the longest free-space operating wavelength of said antenna, and wherein said conducting pattern fits inside a rectangular area of the package, a longest side of said rectangular area being shorter than one-fifth of a longest free-space operating wavelength of said antenna. 2. System of claim 1, wherein the electrical circuit performs a base-band functionality. 3. System of claim 1, wherein the electrical circuit performs a digital functionality. 4. System according to claim 1, wherein the electrical circuit comprises a radio-frequency circuit. 5. System according to claim 4, wherein a coupling between the antenna and the radio-frequency circuit is a reactive coupling. 6. System according to claim 4, wherein the system comprises a ground plane, and wherein the radio-frequency circuit is connected to the ground plane. 7. System according to claim 6, wherein the ground plane is located with respect to the package so as not to be underneath or above the antenna. 8. System according to claim 4, wherein at least some of the connections of the radio-frequency circuit are balanced. 9. System according to claim 4, wherein the system comprises a radio-frequency component outside the package, and wherein the antenna is connected to the radio-frequency circuit and at least a part of the radio-frequency circuit is connected to the radio-frequency component outside the package. 10. System according to claim 4, wherein the system comprises a radio-frequency component outside the package, and wherein the antenna is connected to the radio-frequency component outside the package. 11. System according to claim 4, wherein the radio-frequency circuit comprises a balun. 12. System according to claim 11, wherein the balun is a printed circuit. 13. System according to claim 11, wherein the balun is a discrete component. 14. System according to claim 4, wherein the package comprises a radio-frequency input/output connector, and wherein at least one of the antenna and the radio-frequency circuit comprises a connection with the radio-frequency input/output connector. 15. System according to claim 4, wherein the system comprises a radio-frequency component outside the package and wherein at least one of the radio-frequency circuit and the radio-frequency component outside the package includes at least one filter. 16. System according to claim 1, comprising a radio-frequency component outside the package. 17. System according to claim 16, wherein the radio-frequency component outside the package is a matching network. 18. System according to claim 16, wherein radio-frequency component outside the package is at least one of a bypass or a through-connection. 19. System according to claim 16, wherein the radio-frequency component outside the package comprises a power amplifier. 20. System according to claim 1, wherein the antenna is connected to an input/output connector of the package and at least a part of the electrical circuit is connected to the input/output connector of the package. 21. System according to claim 1, wherein the antenna is a space filling antenna. 22. System according to claim 21, wherein the space-filling antenna has a dimension larger than 1 when computed as a grid dimension calculation. 23. System according to claim 21, wherein the space-filling antenna has a dimension larger than 1 when computed as a box counting dimension calculation. 24. System according to claim 1, wherein, for each pair of angles, the smaller angle of the pair is less than 180° and at least two of said smaller angles are less than 115°, wherein at least two of the angles, which are on the same side of the curve and are formed from adjacent segments of the group of said at least five segments, are different. 25. System according to claim 24, wherein at least two of the angles, which are on the same side of the curve and are formed from adjacent segments of the group of said at least five segments, are different. 26. System according to claim 1, wherein the antenna is a modular or a discrete component. 27. System according to claim 26, wherein the modular or discrete component is a surface mount technique (SMT) component. 28. System according to claim 1, wherein the antenna comprises two ends, and wherein both ends of the antenna are connected to the package. 29. System according to claim 28, wherein at least one end of the two ends of the antenna is connected to an input/output connector of the package. 30. System according to claim 28, wherein both ends of the antenna are connected to input/output connectors of the package. 31. System according to claim 1, wherein the antenna has a parasitic element. 32. System according to claim 31, wherein the parasitic element is inside the package. 33. System according to claim 31, wherein the parasitic element is outside the package. 34. System according to claim 1, comprising a second antenna external to the package. 35. System according to claim 34, wherein the system comprises a switch that commutes between the antenna and the second antenna. 36. System according to claim 35, wherein the switch is provided outside the package. 37. System according to claim 35, wherein the switch is provided on the package. 38. System according to claim 35, wherein the switch that commutes between the antenna and the second antenna provides an antenna diversity system. 39. System according to claim 1, wherein the antenna is disabled. 40. System according to claim 1, wherein the antenna is a balanced antenna. 41. System according to claim 1, wherein the antenna is an unbalanced antenna. 42. System according to claim 1, wherein the antenna is loaded with discrete reactive components. 43. System according to claim 42, wherein the antenna is loaded with external loads. 44. Multiple-antenna communication system comprising a plurality of mutually connected systems, wherein each system of the plurality of mutually connected systems comprises: an antenna and an electrical circuit, wherein the antenna and the electrical circuit are arranged in an integrated circuit package, wherein the antenna comprises a conducting pattern, at least a portion of which includes a curve comprising at least five segments, each of said at least five segments forming a pair of angles with a respective adjacent segment in said curve, at least three of said segments being shorter than one-tenth of the longest free-space operating wavelength of said antenna, and wherein said conducting pattern fits inside a rectangular area of the package, a longest side of said rectangular area being shorter than one-fifth of a longest free-space operating wavelength of said antenna. 45. System according to claim 44, wherein the multiple antenna communication system is one of a multiple-input-multiple-output system, a smart antenna system, a phased array system and a sensor network. 46. A system, comprising: an antenna formed on a substrate, the antenna comprising a multi-segment conductor provided in a space-filling pattern, at least a portion of which including a curve comprising at least five segments, each of said at least five segments forming a pair of angles with a respective adjacent segment in said curve, at least three of said segments being shorter than one-tenth of the longest free-space operating wavelength of the antenna, the antenna occupying a rectangular area of the substrate in which a longest side of the rectangular area is shorter than ⅕ of a longest free space operating wavelength of the antenna, and a circuit also provided on the substrate, wherein the antenna and the circuit are enclosed in a common package housing. 47. The system of claim 46, wherein the package housing is an integrated circuit package. 48. The system of claim 47, wherein the package housing is a surface mount package. 49. The system of claim 47, wherein the package housing is a ball grid array package. 50. The system of claim 47, wherein the package housing is an in-line package. 51. The system of claim 47, wherein the package housing is a leadframe package. 52. System comprising: at least one antenna and an electrical circuit, wherein the electrical circuit comprises a radio-frequency circuit, wherein the at least one antenna and the electrical circuit are arranged in a package, said package being an integrated circuit package, wherein the system further comprises a radio-frequency component outside the package, and wherein the at least one antenna is connected to the radio-frequency component outside the package.