Antenna power feeding structure comprising flexible printed circuit board, and electronic device comprising same
An electronic device may include: a main substrate; a frame having at least one part exposed outside the electronic device, and formed from a metal material; a flexible printed circuit board having at least one part disposed adjacent to the frame; a first connecting part for electrically connecting the flexible printed circuit board and the main substrate; a second connecting part formed to be bendable to electrically connect the flexible printed circuit board and the frame; and an integrated circuit disposed on, directly or indirectly, the flexible printed circuit board. Various other embodiments are possible.
1. An electronic device comprising:
a main board;
a frame comprising at least a portion exposed to the outside of the electronic device and comprising metal material;
a flexible printed circuit board comprising at least a portion disposed to be adjacent to the frame;
a first connection part, comprising conductive material, configured to electrically connect the flexible printed circuit board and the main board;
a second connection part, comprising conductive material, configured to be bendable and electrically connect the flexible printed circuit board and the frame; and
an integrated circuit disposed on the flexible printed circuit board,
wherein the frame is segmented into at least a first area and a second area, wherein lengths of the first and second areas are configured to be changed according to a communication frequency used in the electronic device, and wherein the first area and the second area are used as antennas for transmitting communication signals of different bands.
2. The electronic device of claim 1 , wherein the second connection part is coupled to the frame by a bolt inserted in a screw hole formed through the second connection part.
3. The electronic device of claim 1 , further comprising a plate positioned inside the frame,
wherein the flexible printed circuit board has at least a portion supported by the plate.
4. The electronic device of claim 1 , wherein the flexible printed circuit board comprises a shape capable of being disposed in a space between the main board and the frame.
5. The electronic device of claim 1 , wherein the flexible printed circuit board comprises a first area in which the first connection part and the second connection part are positioned, and at least one second area configured to branch and extend from the first area, and wherein the at least one second area of the flexible printed circuit board comprises an antenna radiator configured to transmit and/or receive an RF signal.
6. The electronic device of claim 1 , wherein the flexible printed circuit board comprises at least one antenna radiator comprising conductive material, electrically connected to the flexible printed circuit board, and configured to transmit and/or receive an RF signal.
7. The electronic device of claim 1 , wherein the frame is segmented into multiple areas, comprising the first area and the second area, by at least an insulation material.
8. The electronic device of claim 7 , wherein multiple second connection parts are provided,
wherein at least one of the multiple second connection parts is configured to electrically connect the first area of the frame and the flexible printed circuit board, and
wherein at least one of the multiple second connection parts is configured to electrically connect the second area of the frame and the flexible printed circuit board.
9. The electronic device of claim 1 , wherein the flexible printed circuit board comprises multiple layers,
wherein a signal line for transmitting an RF signal is disposed on at least one of the multiple layers, and
wherein a ground via formed to penetrate the multiple layers is disposed around the signal line.
10. The electronic device of claim 1 , wherein the integrated circuit comprises a matching circuit for impedance matching, and
wherein the matching circuit is disposed in a portion adjacent to a portion in which the second connection part and the flexible printed circuit board are connected to each other.
11. An antenna power feeding structure comprising:
a flexible printed circuit board disposed to be adjacent to a frame of an electronic device comprising metal material;
a first connection part, comprising conductive material, and configured to electrically connect the flexible printed circuit board and a main board of the electronic device;
a second connection part, comprising conductive material, configured to be bendable, and to electrically connect the flexible printed circuit board and the frame of the electronic device; and
an integrated circuit disposed on the flexible printed circuit board,
wherein the flexible printed circuit board comprises:
a first area in which the first connection part and the second connection part are positioned, the first area including a first surface on which at least one pad electrically connected to the first connection part or the second connection part is disposed, and
at least one second area configured to branch and extend from a second surface of the first area, the second surface being opposite to the first surface.
12. The antenna power feeding structure of claim 11 , wherein the second connection part is coupled to the frame of the electronic device at least by a bolt inserted in a screw hole formed through the second connection part.
13. The antenna power feeding structure of claim 11 , wherein the flexible printed circuit board comprising at least a portion supported by a plate disposed at least partially inside the frame of the electronic device.
14. The antenna power feeding structure of claim 11 , wherein the flexible printed circuit board is formed in a shape to be disposed in a space between at least the main board of the electronic device and the frame of the electronic device, and comprises a surface oriented in a first direction and a surface oriented in a second direction different from the first direction.
15. The antenna power feeding structure of claim 11 , wherein
the at least one second area of the flexible printed circuit board comprises an antenna radiator configured to transmit and/or receive an RF signal.