Electronic device for detecting external object using plurality of array antennas arranged in plurality of directions and method thereof

1. An electronic device comprising:

a plurality of antennas disposed in a plurality of directions; and

a control circuit, wherein the control circuit is configured to:

determine a plurality of states corresponding to the plurality of directions outside the electronic device, using the plurality of antennas,

in response to states of one or more first antennas among the plurality of states satisfying a first specified condition, deactivate the one or more first antennas, the first specified condition indicating a presence of a second external object at a distance that prevents a first external object from entering between the second external object and the electronic device, and

in response to states of one or more second antennas among the plurality of states satisfying a second specified condition:

activate the one or more second antennas, and

detect the first external object, using the one or more second antennas in a state where the one or more first antennas are deactivated.

2. The electronic device of claim 1 , wherein the control circuit is further configured to:

transmit signals in the plurality of directions, using the plurality of antennas;

receive a signal reflected among the signals transmitted in the plurality of directions; and

determine the plurality of states based on at least one of whether the reflected signal is received within a threshold time, or whether a high-frequency signal is included in the reflected signal.

3. The electronic device of claim 1 , wherein the control circuit is further configured to:

in response to the first external object not being detected within a specified first threshold distance, adjust beams generated by the one or more second antennas not to overlap with one another; and

in response to the first external object being detected within the first threshold distance, adjust the beams generated by the one or more second antennas to overlap with one another at least partially.

4. The electronic device of claim 3 , wherein the control circuit is further configured to:

in response to the first external object not being detected within the first threshold distance, adjust a detection angle of the one or more second antennas to a first detection angle; and

in response to the first external object being detected within the first threshold distance, adjust the detection angle of the one or more second antennas to a second detection angle less than the first detection angle.

5. The electronic device of claim 4 , wherein the control circuit is further configured to:

in response to the first external object entering a place within a second threshold distance shorter than the first threshold distance, adjust the detection angle of the one or more second antennas to the first detection angle.

6. The electronic device of claim 4 , wherein the control circuit is further configured to:

in response to a movement speed of the first external object not being less than a threshold speed, adjust the detection angle of the one or more second antennas to the first detection angle.

7. The electronic device of claim 3 , wherein the control circuit is further configured to:

determine at least one second antenna corresponding to a direction, in which the first external object is detected, from among the one or more second antennas;

adjust beams generated by the determined at least one second antenna among the one or more second antennas to overlap with one another at least partially; and

adjust beams generated by the remaining second antennas, which are not determined, from among the one or more second antennas not to overlap with one another.

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

a plurality of output devices,

wherein the control circuit is further configured to:

output information associated with operations of at least one of antennas among the plurality of antennas, using output devices corresponding to a direction, in which the first external object is detected, from among the plurality of output devices.

9. A method of an electronic device, the method comprising:

determining a plurality of states corresponding to a plurality of directions outside the electronic device, using a plurality of antennas;

in response to states of one or more first antennas among the plurality of states satisfying a first specified condition, deactivating the one or more first antennas, the first specified condition indicating a presence of a second external object at a distance that prevents a first external object from entering between the second external object and the electronic device; and

in response to states of one or more second antennas among the plurality of states satisfying a second specified condition:

activating the one or more second antennas, and

detecting the first external object, using the one or more second antennas in a state where the one or more first antennas are deactivated.

10. The method of claim 9 , further comprising:

in response to the first external object not being detected within a first threshold distance, adjusting beams generated by the one or more second antennas not to overlap with one another; and

when in response to the first external object being detected within the first threshold distance, adjusting beams generated by the one or more second antennas to overlap with one another at least partially.

11. The method of claim 10 , further comprising:

in response to the first external object not being detected within the first threshold distance, adjusting a detection angle of the one or more second antennas to a first detection angle; and

in response to the first external object being detected within the first threshold distance, adjusting the detection angle of the one or more second antennas to a second detection angle less than the first detection angle.

12. The method of claim 11 , further comprising:

in response to the first external object entering a place within a second threshold distance shorter than the first threshold distance, adjusting the detection angle of the one or more second antennas to the first detection angle.

13. The method of claim 11 , further comprising:

in response to a movement speed of the first external object not being less than a threshold speed, adjusting the detection angle of the one or more second antennas to the first detection angle.

14. The method of claim 10 , further comprising:

determining at least one second antenna corresponding to a direction, in which the first external object is detected, from among the one or more second antennas;

adjusting beams generated by the determined at least one second antenna among the one or more second antennas to overlap with one another at least partially; and

adjusting beams generated by the remaining second antennas, which are not determined, from among the one or more second antennas not to overlap with one another.

15. The method of claim 10 , further comprising:

outputting information associated with operations of one or more antennas among the plurality of antennas, using output devices corresponding to a direction, in which the first external object is detected, from among a plurality of output devices.

16. The method of claim 10 , wherein the second external object comprises at least one of a wall or a barrier.