Container labels

1. An antenna comprising:

two oppositely wound antenna coils, each antenna coil formed by concentric conductor coils,

wherein an outermost conductor coil of one antenna coil is conductively connected to an outermost conductor coil of the other antenna coil via a shared conductive portion, and

wherein an innermost conductor coil of each antenna coil terminates in a bridge connector; and

a bridge conductively linking the bridge connectors,

wherein the antenna is flexible so that the outermost conductor coils of the two antenna coils are conductively connected via a shared, common conductive portion, and

so that the two antenna coils are configured to be positioned on opposite sides of a cylindrical article so as to functionally align, in spaced relationship relative to each other, an inner area of one antenna coil on one side of the article with an inner area of the other antenna coil on an opposite side of the article,

such that one of the two coils is effectively reversed in orientation in order for the induced electromagnetic force, EMF, from the two coils to add together, thereby increasing the effective induced EMF due to increasing the number of concentric conductor coils that result in the induced EMF.

2. The antenna of claim 1 , wherein each bridge connector is located within its associated antenna coil.

3. The antenna of claim 1 , wherein a single bridge conductively links the two antenna coils via the bridge connectors.

4. The antenna of claim 1 , wherein the antenna is fabricated using at least one of an etching technique and an additive manufacturing technique.

5. The antenna of claim 1 , which has a length of less than about 5 cm and a width of less than about 2 cm.

6. The antenna of claim 1 , wherein a magnetic field provided by an electronic reader passes through the article and induces the EMF in the two oppositely wound antenna coils positioned on opposite sides of the article.

7. The antenna of claim 6 , which is configured to be arranged about a cylindrical article so that a first end of the antenna lies adjacent a second end of the antenna.

8. The antenna of claim 1 , wherein the antenna is an RFID antenna.

9. The antenna of claim 1 in which the shared conductive portion is formed by a shared portion of the outermost coil of each antenna coil.

10. An electronic label comprising the antenna of claim 1 .

11. The electronic label of claim 10 that is an RFID label.

12. A test tube labelled with the electronic label of claim 10 .

13. A system for identifying a container labelled with the electronic label of claim 10 with stored container data comprising a tag identity of the container, the system comprising:

an electronic reader configured to interrogate one or more electronic labels to retrieve tag data from each of the one or more electronic labels; and

a processer that receives the retrieved tag data from the electronic reader and if the retrieved tag data includes the tag identity, the processor identifies the container.

14. The system of claim 13 , wherein the processor is configured to determine if the tag identity comprises a priority tag identity, and if the tag identity comprises the priority tag identity the system identifies the container as a priority container.

15. The system of claim 13 , wherein the container data comprises sample information associated with contents of the container.