Wireless handheld devices, radiation systems and manufacturing methods
A radiating system for transmitting and receiving signals in first and second frequency regions includes a radiating structure, a radiofrequency system, and an external port. The radiating structure has first and second isolated radiation boosters coupled to a ground plane layer. A first internal port of the radiating structure is between the first radiation booster and the ground plane layer, and a second internal port is between the second radiation booster and the ground plane layer. A distance between the two internal ports is less than 0.06 times a wavelength of the lowest frequency. The maximum size of the first and second radiation boosters is smaller than 1/30 times the wavelength of the lowest frequency. The radiofrequency system includes two ports connected respectively to the first and the second internal ports of the radiating structure, and a port connected to the external port of the radiating system.
1. A stand-alone component for a radiating system of a wireless device, the stand-alone component comprising:
first and second electrically-unconnected conductive structures, the first electrically-unconnected conductive structure comprising first and second conductive parts connected by at least one conductive element,
wherein each of the first and second electrically-unconnected conductive structures entirely fits inside a volume smaller than L 3 /8000, L being the longest free-space operating wavelength of the stand-alone component;
wherein the first and second electrically-unconnected conductive structures are embedded in a unitary dielectric support; and
wherein at least one of the electrically-unconnected conductive structures is a concave conductive structure.
2. The stand-alone component of claim 1 , further comprising a third electrically-unconnected conductive structure.
3. The stand-alone component of claim 1 , wherein the first and second conductive parts of the first electrically-unconnected conductive structure are connected by at least one via.
4. The stand-alone component of claim 1 , wherein the first and second conductive parts of the first electrically-unconnected conductive structure respectively comprise top and bottom conductive parts connected by at least one via.
5. The stand-alone component of claim 1 , wherein at least one of the electrically-unconnected conductive structures entirely fits inside a volume smaller than L 3 /100,000.
6. The stand-alone component of claim 1 , wherein at least one of the electrically-unconnected conductive structures entirely fits inside a cube featuring a longest edge smaller than L/100.
7. The stand-alone component of claim 1 , wherein the stand-alone component provides operation at first and second frequency regions of operation.
8. The stand-alone component of claim 7 , wherein the first frequency region of operation comprises one or more mobile frequency bands and the second frequency region of operation includes a GPS frequency band.
9. The stand-alone component of claim 1 , wherein the first and second electrically-unconnected conductive structures are electrically connected by external circuitry.
10. The stand-alone component of claim 9 , wherein the external circuitry is connected to a radiofrequency system.
11. A tracking or navigation device comprising:
a processing module;
a memory module;
a communication module;
a ground plane layer; and
a stand-alone component comprising first and second electrically-unconnected conductive structures, the first conductive structure comprising first and second conductive parts connected by at least one conductive element,
wherein each of the first and second electrically-unconnected conductive structures entirely fits inside a volume smaller than L 3 /8000, L being the longest free-space operating wavelength of the stand-alone component;
wherein the first and second electrically-unconnected conductive structures are embedded in a unitary dielectric support; and
wherein the stand-alone component provides operation at first and second frequency regions, the first frequency region comprising one or more mobile frequency bands, and the second frequency region including a GPS frequency band.
12. The tracking or navigation device of claim 11 , wherein the stand-alone component further comprises a third electrically-unconnected conductive structure.
13. A tracking or navigation device, comprising:
a processing module;
a memory module;
a communication module;
a ground plane layer; and
a stand-alone component comprising first and second electrically-unconnected conductive structures, the first conductive structure comprising first and second conductive parts connected by at least one conductive element,
wherein each of the first and second electrically-unconnected conductive structures entirely fits inside a volume smaller than L 3 /8000, L being the longest free-space operating wavelength of the stand-alone component;
wherein the first and second electrically-unconnected conductive structures are embedded in a unitary dielectric support; and
wherein the first and second conductive parts of the first electrically-unconnected conductive structure are connected by at least one via.
14. The tracking or navigation device of claim 13 , wherein the first and second conductive parts of the first electrically-unconnected conductive structure respectively comprise top and bottom conductive parts.
15. The tracking or navigation device of claim 11 , wherein at least one of the electrically-unconnected conductive structures entirely fits inside a volume smaller than L 3 /100,000.
16. The tracking or navigation device of claim 11 , wherein at least one of the electrically-unconnected conductive structures entirely fits inside a cube featuring a longest edge smaller than L/100.
17. The tracking or navigation device of claim 11 , wherein the first and second electrically-unconnected conductive structures are connected by external circuitry.
18. The tracking or navigation device of claim 17 , wherein the external circuitry is connected to a radiofrequency system.