Electronic device and transaction method using the same

1. An electronic device comprising:

a housing;

a conductive pattern that is arranged within the housing and is formed to generate a magnetic field;

a plate forming at least a part of a first surface of the housing and includes a material that at least partially transmits the magnetic field generated by the conductive pattern; and

a communication circuit configured to transmit at least one transaction information to an external device by using the conductive pattern,

wherein the conductive pattern includes:

a first end electrically connected to the communication circuit;

a second end electrically connected to the communication circuit; and

a coil connected between the first end and the second end and includes a plurality of turns that are substantially parallel to a surface of the plate,

wherein, when viewed from a upper side of the plate, the coil includes:

a first section that includes portions of conductive lines that extend substantially parallel to each other; and

a second section that includes other portions of the conductive lines at a position that is different from that of the first section, and

wherein when a same number of turns of the conductive lines are arranged in each of the first section and the second section, the portions of conductive lines arranged in the first section are distributed in a wider area than an area where the other portions of the conductive lines arranged in the second section are distributed, or the portions of conductive lines arranged in the first section are arranged to occupy more turns than the other portion of conductive lines arranged in the second section.

2. The electronic device of claim 1 , wherein, when viewed from the upper side the plate, a width of the portions of the conductive lines within the first section is wider than a width of the other portions of the conductive lines within the second section.

3. The electronic device of claim 1 , further comprising:

a display exposed on a second surface of the housing, which faces a direction opposite to the plate.

4. The electronic device of claim 1 , wherein, when viewed from the upper side of the first surface of the housing, one of the first section and the second section is arranged in a central portion of the coil.

5. An electronic device comprising:

a magnetic secure transfer (MST) circuit; and

at least one coil connected to the MST circuit,

wherein the at least one coil includes:

a first end electrically connected to the MST circuit;

a second end electrically connected to the MST circuit;

a conductive line connected between the first end and the second end

a first section that includes a portions of conductive line that extend substantially parallel to each other; and

a second section that includes other portions of the conductive line at a position that is different from that of the first section, wherein the second section has different shape and size from the first section, and

wherein when a same number of turns of the conductive line are arranged in each of the first section and the second section, the portions of conductive line arranged in the first section are distributed in a wider area than an area where the other portions of the conductive line arranged in the second section are distributed, or the portions of conductive line arranged in the first section are arranged to occupy more turns than the other portion of conductive line arranged in the second section.

6. The electronic device of claim 5 , wherein the portions of the conductive line arranged in the first section is formed to rotate a current in a direction different from the other portions of the conductive line arranged in the second section.

7. The electronic device of claim 5 , wherein at least a part of the portions of the conductive line arranged in the first section is formed within the other portions of the conductive line arranged in the second section.

8. The electronic device of claim 5 , wherein at least one of the portions of the conductive line arranged in the first section and the other portions of the conductive line arranged in the second section is formed to have a first width and have a second width.

9. The electronic device of claim 5 , wherein the portions of the conductive line arranged in the first section is capable of transmitting a magnetic signal that oscillates in a first direction, and

the other portions of the conductive line arranged in the second section is capable of transmitting a magnetic signal that oscillates in a second direction different from the first direction.

10. The electronic device of claim 5 , further comprising:

a housing accommodating the coil,

wherein at least one of the portions of the conductive line arranged in the first section and the other portions of the conductive line arranged in the second section is formed on or in the housing.

11. The electronic device of claim 10 , wherein the housing includes a plurality of surfaces including a first surface and a second surface, and

wherein the portions of the conductive line arranged in the first section is formed on the first surface and the other portions of the conductive line arranged in the second section is formed on the second surface.

12. The electronic device of claim 10 , wherein at least one of the portions of the conductive line arranged in the first section and the other portions of the conductive line arranged in the second section includes at least a part of a conductive bezel that at least partially encloses the electronic device.

13. The electronic device of claim 10 , wherein the MST circuit is set to transmit information related to a transaction through at least one of the portions of the conductive line arranged in the first section and the other portions of the conductive line arranged in the second section.

14. The electronic device of claim 13 , wherein at least one of the portions of the conductive line arranged in the first section and the other portions of the conductive line arranged second section is selected based on an orientation of the electronic device in relation to an external device that is to receive the information.

15. An electronic device comprising:

at least one coil;

a MST circuit connected to the at least one coil; and

a touch screen configured to display position information of another external electronic device and displays guide information such that transaction information is able to be transmitted or received between the another external electronic device and the MST circuit.

16. The electronic device of claim 15 , wherein the touch screen further displays information related to a transaction state between the MST circuit and the another external electronic device.