Near field communication housing structure
An embodiment device includes a first housing formed of a first radio-transparent material and having an outer perimeter surface including a first outer perimeter portion and a second outer perimeter portion, the outer perimeter surface having one or more recesses, each of the one or more recesses extending from one of the first outer perimeter portion or the second outer perimeter portion into a body of the first housing, a second housing formed of a second radio-transparent material and secured to the first housing, a near field communication (NFC) chip disposed between the first housing and the second housing, a link having a first end and a second end extending into the body of the first housing.
1. A device, comprising:
a first housing formed of a first radio-transparent material and having an outer perimeter surface comprising a first outer perimeter portion and a second outer perimeter portion, the outer perimeter surface having one or more recesses, each of the one or more recesses extending from one of the first outer perimeter portion or the second outer perimeter portion into a body of the first housing, wherein the first housing further has a first interior recess extending from a first side of the first housing into the body of the first housing, and wherein first walls of the first housing define and bound the first interior recess;
a second housing formed of a second radio-transparent material and secured to the first housing, the second housing having a second interior recess extending from a second sides of the second housing into a body of the second housing, wherein second walls of the second housing define and bound the second interior recess, wherein outer surfaces of the second walls of the second housing at least partially extend into the first interior recess in a first direction substantially perpendicular to a lateral direction, and wherein the entirety of the second housing is within, in the lateral direction, the first walls;
a near field communication (NFC) chip disposed between the first housing and the second housing and within the second interior recess, wherein the NFC chip is enclosed by both the first housing and the second housing;
an adhesive disposed in the second interior recess and extending contiguously along a first sidewall surface of the second interior recess, along a bottom surface of the second interior recess and along a second sidewall surface of the second interior recess, wherein the first sidewall surfaces and second sidewall surface face each other and the bottom surface and define the second interior recess, wherein the adhesive is in direct contact with a top surface of the NFC chip, a first side surface of the NFC chip, and a second side surface of the NFC chip opposite the first side surface, wherein the NFC chip and adhesive substantially fill the second interior recess, wherein a bottom surface of the NFC chip is in direct contact with a bottom surface of the first interior recess, and wherein the NFC chip is a passive device; and
a link formed from a metallic material and having a first end and a second end, wherein the first end extends from the first outer perimeter portion into the body of the first housing towards the second housing, and the second end extends from the second outer perimeter portion into the body of the first housing towards the first outer perimeter portion, and wherein at least a first wall portion of a first wall of the first walls of the first housing is disposed directly between the NFC chip and the link.
2. The device of claim 1 , wherein the first end of the link is formed from the metallic material, wherein the second end of the link is formed from the metallic material, and wherein portions of the first end and second end are disposed within the body of the first housing, and wherein long axes of the first and second end are aligned with each other.
3. The device of claim 1 , wherein the outer perimeter surface comprises a lobe at least partially defined by the first outer perimeter portion and the second outer perimeter portion, and wherein the one or more recesses are disposed in the lobe.
4. The device of claim 1 , wherein the link and the NFC chip are separated by a distance that is between 1 mm and 15 mm, and that is selected to avoid interference between the link and the NFC chip.
5. The device of claim 1 , wherein the one or more recesses include a first recess extending from the first outer perimeter portion into the body of the first housing towards the second outer perimeter portion and a second recess extending from the second outer perimeter portion into the body of the first housing towards the first outer perimeter portion.
6. The device of claim 1 , wherein the one or more recesses is a single recess that is a through hole extending from the first outer perimeter portion to the second outer perimeter portion.
7. The device of claim 1 , wherein a bottom outer surface of the second housing is flush with, or at a level above, an upper lip of the first housing.
8. The device of claim 1 , wherein a length and a width of the of the second interior recess are between 3.5 mm and 15 mm, and wherein a length and a width of the NFC chip are each between 3.5 mm and 15 mm and are each shorter than the respective length and width of the second interior recess.
9. A device, comprising:
a first housing formed of a radio-transparent material and having an outer perimeter surface comprising a first outer perimeter portion, a second outer perimeter portion, the outer perimeter surface having one or more recesses, each of the one or more recesses extending from the first outer perimeter portion or the second outer perimeter portion into a body of the first housing, wherein the outer perimeter surface comprises a lobe at least partially defined by the first outer perimeter portion and the second outer perimeter portion, wherein the one or more recesses are disposed in the lobe, wherein the first housing further has a first interior recess extending from a first side of the first housing into the body of the first housing, and wherein first walls of the first housing define and bound the first interior recess;
a second housing formed of a second radio-transparent material secured to the first housing, the second housing having a second interior recess extending from a second sides of the second housing into a body of the second housing, wherein second walls of the second housing define and bound the second interior recess, wherein outer surfaces of the second walls of the second housing at least partially extend into the first interior recess in a first direction substantially perpendicular to a lateral direction, and wherein the entirety of the second housing is within, in the lateral direction, the first walls;
a near field communication (NFC) chip disposed between the first housing and the second housing and within the second interior recess, wherein the NFC chip is enclosed by both the first housing and the second housing;
an adhesive disposed in the second interior recess and extending contiguously along a first sidewall surface of the second interior recess, along a bottom surface of the second interior recess and along a second sidewall surface of the second interior recess, wherein the first sidewall surfaces and second sidewall surface face each other and the bottom surface and define the second interior recess, wherein the adhesive is in direct contact with a top surface of the NFC chip, a first side surface of the NFC chip, and a second side surface of the NFC chip opposite the first side surface, wherein the NFC chip and adhesive substantially fill the second interior recess, wherein a bottom surface of the NFC chip is in direct contact with a bottom surface of the first interior recess, and wherein the NFC chip is a passive device; and
a link formed from a metallic material and having a first end and a second end, wherein the first end extends from the first outer perimeter portion into the body of the first housing towards the second housing, and the second end extends from the second outer perimeter portion into the body of the first housing towards the first outer perimeter portion, and wherein at least a first wall portion of a first wall of the first walls of the first housing is disposed directly between the NFC chip and the link.
10. The device of claim 9 , wherein the first end of the link is formed from the metallic material, wherein the second end of the link is formed from the metallic material, and wherein portions of the first end and second end are disposed within the body of the first housing, and wherein long axes of the first and second end are aligned with each other.
11. The device of claim 9 , wherein the link and the NFC chip are separated by a distance that is between 1 mm and 15 mm, and that is selected to avoid interference between the link and the NFC chip.
12. The device of claim 9 , wherein the one or more recesses include a first recess extending from the first outer perimeter portion into the body of the first housing towards the second outer perimeter portion and a second recess extending from the second outer perimeter portion into the body of the first housing towards the first outer perimeter portion.
13. The device of claim 9 , wherein the one or more recesses is a single recess that is a through hole extending from the first outer perimeter portion to the second outer perimeter portion.
14. The device of claim 9 , wherein a bottom surface of the second housing is flush with or at a level above an upper lip of the first housing.
15. A method, comprising:
providing a first housing formed of a first radio-transparent material having an outer perimeter surface comprising a first outer perimeter portion and a second outer perimeter portion, the outer perimeter surface having one or more recesses, each of the one or more recesses extending from one of the first outer perimeter portion or the second outer perimeter portion into a body of the first housing, wherein the first housing further has a first interior recess extending from a first side of the first housing into the body of the first housing, and wherein first walls of the first housing define and bound the first interior recess;
providing a second housing formed of a second radio-transparent material, the second housing having a second interior recess extending from a second sides of the second housing into a body of the second housing, wherein second walls of the second housing define and bound the second interior recess;
securing an near field communication (NFC) chip in the second housing and within the second interior recess, wherein the NFC chip is a passive device;
securing the second housing in the first housing, wherein the NFC chip is enclosed by both the first housing and the second housing, wherein outer surfaces of the second walls of the second housing at least partially extend into the first interior recess in a first direction substantially perpendicular to a lateral direction, wherein the entirety of the second housing is within, in the lateral direction, the first walls, wherein an adhesive is disposed in the second interior recess and extends contiguously along a first sidewall surface of the second interior recess, along a bottom surface of the second interior recess and along a second sidewall surface of the second interior recess, wherein the first sidewall surfaces and second sidewall surface face each other and the bottom surface and define the second interior recess, wherein the adhesive is in direct contact with a top surface of the NFC chip, a first side surface of the NFC chip, and a second side surface of the NFC chip opposite the first side surface, wherein the NFC chip and adhesive substantially fill the second interior recess, wherein a bottom surface of the NFC chip is in direct contact with a bottom surface of the first interior recess, and wherein the NFC chip is a passive device; and
attaching a link formed from a metallic material and having a first end and a second end, wherein the first end extends from the first outer perimeter portion into the body of the first housing towards the second housing, and the second end extends from the second outer perimeter portion into the body of the first housing towards the first outer perimeter portion, and wherein at least a first wall portion of a first wall of the first walls of the first housing is disposed directly between the NFC chip and the link.
16. The method of claim 15 , wherein the link and the NFC chip are separated by a distance greater than 1 mm.
17. The method of claim 15 , wherein the outer perimeter surface comprises a lobe at least partially defined by the first outer perimeter portion and the second outer perimeter portion, and wherein the one or more recesses are disposed in the lobe.
18. The method of claim 15 , wherein forming one or more recesses comprises forming one recess, the one recess being a through hole extending from the first outer perimeter portion to the second outer perimeter portion.
19. The method of claim 15 , wherein one or more recesses is a single recess that is a through hole extending from the first outer perimeter portion to the second outer perimeter portion.
20. The method of claim 15 , wherein the one or more recesses include a first recess extending from the first outer perimeter portion into the body of the first housing towards the second outer perimeter portion and a second recess extending from the second outer perimeter portion into the body of the first housing towards the first outer perimeter portion.