Wearable electronic patch with antenna enhancement
A wearable electronic patch with an enhanced radio antenna includes an antenna, radio circuitry, a base portion, a distal portion, and intermediate portion, and a spacer, configured to raise the antenna away from the base portion, and thus away from a wearer to improve radiation properties of the antenna. The spacer may be sized and shaped to expand from a compressed state, as it may be when the patch is packaged, to an expanded state that raises the antenna when it is applied to a wearer. Other aspects, embodiments, and features are also claimed and disclosed.
1. A wearable electronic patch for biological monitoring of a wearer, comprising: an antenna; a base portion having a first surface configured to face the wearer and a second surface is opposite the first surface of the base portion; a distal portion spaced away from and opposed to the base portion and having a first surface configured to face the second surface of the base portion, wherein the antenna is secured to the distal portion, wherein the base portion is configured to be closer to the wearer than the distal portion when the wearable electronic patch is worn by the wearer; an intermediate portion joining the base portion and the distal portion; and a spacer configured to be disposed between the second surface of the base portion and the first surface of the distal portion when the wearable electronic patch is worn by a wearer, wherein the spacer is sized and shaped to expand from a compressed state for moving the antenna away from the base portion.
2. The wearable electronic patch of claim 1 , wherein when compressed the spacer maintains a space between the base portion and the antenna.
3. The wearable electronic patch of claim 1 , wherein the spacer is formed of a foam material configured to expand after the base portion is secured to the wearer.
4. The wearable electronic patch of claim 1 , wherein the spacer has a dielectric constant of approximately 1.0.
5. The wearable electronic patch of claim 1 , wherein the base portion, the distal portion and the intermediate portion form a continuous printed circuit board.
6. The wearable electronic patch of claim 1 , wherein a first end of the intermediate portion attached to the distal portion is folded over a second end of the intermediate portion attached to the base portion.
7. The wearable electronic patch of claim 1 , further comprising an adhesive layer securing at least one of the base portion to the spacer and the spacer to the distal portion.
8. The wearable electronic patch of claim 1 , wherein the antenna is a circuit element printed onto the distal portion.
9. The wearable electronic patch of claim 1 , further comprising radio circuitry coupled to the antenna, wherein the radio circuitry is disposed between the base portion and the distal portion.
10. The wearable electronic patch of claim 1 , further comprising a sensor attached to at least one of the base portion and the distal portion, wherein the sensor is configured to measure one or more physical characteristics.
11. The wearable electronic patch of claim 1 , further comprising a body detection circuit configured to detect when the wearable electronic patch is worn by the wearer.
12. The wearable electronic patch of claim 1 , further comprising a battery at least partially disposed between the base portion and the distal portion.
13. The wearable electronic patch of claim 1 , further comprising a removable packaging covering at least one of the base portion and the distal portion, wherein removing of the packaging releases the spacer to expand from the compressed state.
14. The wearable electronic patch of claim 1 , further comprising a permanent packaging encasing at least the base portion, the distal portion and the intermediate portion, wherein the permanent packaging is configured to expand in response to expansion of the spacer.
15. The wearable electronic patch of claim 1 , further comprising a sensor coupled to the base portion, wherein the spacer is positioned and configured to separate the sensor from the antenna.