Contactless antenna, support structure and corresponding connector

1. A structural part of an internal architecture of a payment terminal, comprising:

a rim, wherein said structural part is constituted by a rigid material;

an antenna-forming electrical cable; and

a channel on the rim, which has a variable width and grasps and guides the antenna-forming electrical cable when said antenna-forming electrical cable is wound around the rim of said structural part, wherein along a widest part of said channel at least one winding of the electrical cable is placed in parallel with at least one other winding of the electrical cable, and wherein along a narrowest part of said channel at least one winding of the electrical cable is superimposed on at least one other winding of the electrical cable.

2. The structural part according to claim 1 , further comprising a hole for inserting said electrical cable.

3. The structural part according to claim 1 , further comprising an outlet trough for the electrical cable.

4. The structural part according to claim 1 , wherein the channel is placed horizontally above an area for receiving a screen of said payment terminal.

5. The structural part according to claim 1 , wherein the width of the channel varies between opposing side walls of the channel along the rim.

6. The structural part according to claim 1 , wherein the structural part forms a printer support for a paper roll.

7. A payment terminal, which comprises:

a structural part constituted by a rigid material and comprising a rim;

a single-strand antenna-forming cable wound a plurality of times on the rim of said structural part; and

two embossed metal connectors, soldered to a motherboard of said payment terminal, within which the two ends of said single-strand antenna-forming cable are inserted; and

a channel having a variable width for grasping and guiding the single-strand antenna-forming electrical cable on said rim, at least one winding of the cable being placed in parallel with at least one other winding of the cable along a widest part of said channel, and at least one winding of the cable being superimposed on at least one other winding of the cable along a narrowest part of said channel.

8. The payment terminal according to claim 7 , wherein the single-strand antenna-forming cable is wound three times on the rim of said structural part.

9. The payment terminal according to claim 7 , wherein the width of the channel varies between opposing side walls of the channel along the rim.

10. The payment terminal according to claim 7 , wherein the structural part forms a printer support for a paper roll.

11. The payment terminal according to claim 7 , wherein the payment terminal further comprises a screen, and wherein the channel is positioned away from the screen such that the single-strand antenna-forming cable forms at least one loop that circumscribes an area excluding the screen.