Ground plane booster antenna technology for wearable devices
A wireless wearable device comprises a radiating system that contains at least a non-resonant element disposed in different arrangements within a radiating structure in the radiating system, featuring compact dimensions and an adequate performance when operating on a carrier living body.
1. A wireless wearable device comprising:
a radiating system configured to operate in at least one operating frequency band contained within at least one frequency region, the radiating system comprising:
a radiating structure which comprises:
at least one non-resonant element; and
a ground plane layer,
wherein the at least one non-resonant element and the ground plane layer are disposed in an arrangement having a maximum radiating structure length less than 0.8 times a free-space wavelength corresponding to a highest frequency of operation, and
wherein the at least one non-resonant element comprises a top conducting surface supported by a dielectric material piece, the top conducting surface being connected to a feeding element.
2. The wireless wearable device according to claim 1 , wherein the radiating structure has a maximum length less than 0.3 times the free-space wavelength corresponding to the highest frequency of operation.
3. The wireless wearable device according to claim 1 , wherein the radiating structure has a maximum length less than 0.125 times the free-space wavelength corresponding to the highest frequency of operation.
4. The wireless wearable device according to claim 1 , wherein the ground plane layer of the radiating structure comprises at least a ground plane clearance that contains the at least one non-resonant element.
5. The wireless wearable device according to claim 4 , wherein the non-resonant element is a volumetric conducting piece.
6. The wireless wearable device according to claim 4 , wherein the radiating structure further comprises a shielding ground plane layer.
7. The wireless wearable device according to claim 1 , wherein the ground plane layer of the radiating structure does not contain ground plane clearance.
8. The wireless wearable device according to claim 1 , wherein the non-resonant element is a volumetric conducting piece.
9. The wireless wearable device according to claim 1 , wherein the radiating structure further comprises a shielding ground plane layer.
10. A wireless wearable device according to claim 1 , wherein the ground plane layer of the radiating structure is extended by a conductive element.
11. A wireless wearable device comprising:
a radiating system configured to operate in at least one low-frequency mobile band within a 880 MHz to 960 MHz frequency range, the radiating system comprising:
a radiating structure which comprises:
at least one non-resonant element; and
a ground plane layer extended by a conductive element,
wherein the at least one non-resonant element and the ground plane layer are disposed in an arrangement having a maximum radiating structure length less than 0.8 times a free-space wavelength corresponding to a highest frequency of operation, and
wherein the non-resonant element is a volumetric conducting piece and comprises a top conductive surface, supported by a dielectric material piece, which is connected by at least a via element to at least one additional bottom conducting surface.
12. The wireless wearable device according to claim 11 , wherein the radiating structure further comprises a shielding ground plane layer.
13. The wireless wearable device according to claim 12 , wherein the shielding ground plane layer is connected to the ground plane layer of the radiating structure by a conductive element.
14. The wireless wearable device according to claim 13 , wherein the conductive element comprises at least a conducting strip element.
15. A wireless wearable device according to claim 12 , wherein the ground plane layer of the radiating structure is extended by a conductive element.