Wireless device
A wireless multi-band device comprises a radiating system comprising a ground plane layer, a boosting element, and a radiofrequency system, wherein the radiofrequency system comprises a tunable reactive element.
1. A wireless device comprising:
a ground plane layer featuring a maximum size smaller than a half of a free-space wavelength, wherein the free-space wavelength corresponds to a lowest frequency within at least two separated frequency regions of operation of the wireless device;
a boosting element featuring a largest dimension smaller than ⅙ times a longest free-space operating wavelength within the at least two separated frequency regions; and
a radiofrequency system comprising a tunable reactive circuit, wherein the tunable reactive circuit comprises: a switch connected between the boosting element and a transceiver, and a bank of fixed matching networks.
2. The wireless device of claim 1 , wherein the ground plane layer features a maximum size smaller than ⅓rd of the longest free-space operating wavelength.
3. The wireless device of claim 1 , wherein the ground plane layer features a maximum size smaller than ¼th of the longest free-space operating wavelength.
4. The wireless device of claim 1 , wherein the ground plane layer features a maximum size smaller than ⅕th of the longest free-space operating wavelength.
5. The wireless device of claim 4 , wherein at least a matching within the bank of fixed matching networks includes a series inductor.
6. The wireless device of claim 4 , wherein at least a matching within the bank of fixed matching networks includes a parallel LC circuit.
7. The wireless device of claim 1 , wherein the ground plane layer features a maximum size smaller than 1/10th of the longest free-space operating wavelength.
8. The wireless device of claim 1 , wherein the ground plane layer features a maximum size smaller than 1/20th of the longest free-space operating wavelength.
9. The wireless device of claim 1 , wherein the boosting element features a largest dimension smaller than 1/10 times a longest free-space operating wavelength within the at least two separated frequency regions.
10. The wireless device of claim 9 , wherein at least a matching within the bank of fixed matching networks includes a series inductor.
11. The wireless device of claim 9 , wherein at least a matching within the bank of fixed matching networks includes a parallel LC circuit.
12. The wireless device of claim 1 , wherein the boosting element features a largest dimension smaller than 1/20 times a longest free-space operating wavelength within the at least two separated frequency regions.
13. The wireless device of claim 1 , wherein the boosting element features a largest dimension smaller than 1/30 times a longest free-space operating wavelength within the at least two separated frequency regions.
14. The wireless device of claim 1 , wherein at least a matching within the bank of fixed matching networks includes a series inductor.
15. The wireless device of claim 1 , wherein at least a matching within the bank of fixed matching networks includes a parallel LC circuit.
16. A wireless device comprising:
a ground plane layer featuring a maximum size smaller than ⅕th of a free-space wavelength, wherein the free-space wavelength corresponds to a lowest frequency within at least two separated frequency regions of operation of the wireless device;
a boosting element featuring a largest dimension smaller than 1/10 times a longest free-space operating wavelength within said at least two separated frequency regions; and
a radiofrequency system comprising a tunable reactive circuit comprising: a switch connected between said boosting element and a transceiver, and a bank of fixed matching networks, wherein at least a matching within the bank of fixed matching networks includes a series inductor and a parallel LC circuit.
17. The wireless device of claim 16 , wherein the ground plane layer features a maximum size smaller than 1/10th of the longest free-space operating wavelength.
18. The wireless device of claim 16 , wherein the ground plane layer features a maximum size smaller than 1/20th of the longest free-space operating wavelength.
19. The wireless device of claim 16 , wherein the boosting element features a largest dimension smaller than 1/20 times a longest free-space operating wavelength within the at least two separated frequency regions.
20. The wireless device of claim 16 , wherein the boosting element features a largest dimension smaller than 1/30 times a longest free-space operating wavelength within the at least two separated frequency regions.