Electronic device for detecting location of user

An electronic device disposed on a door frame, the electronic device comprising:

• a back plate attached to the door frame, the back plate including a surface facing a first direction;
• a housing coupled to the surface of the back plate;
• a first antenna;
• a second antenna located between the first antenna and the back plate, wherein the first antenna and the second antenna are disposed inside the housing, and configured to transmit or receive a first signal passing through a portion of the housing and having a first wavelength with an external electronic device, respectively;
• an electric-wave blocking member including a first portion disposed between the back plate and the second antenna and overlapping the second antenna when viewed in the first direction;
• and a second portion extending from the first portion in a direction away from the back plate, overlapping the second antenna when viewed in a direction perpendicular to the first direction, and positioned further away from the portion of the housing than the second antenna;
• and
• at least one processor operatively connected with the first antenna and the second antenna,
• wherein the second antenna includes a first antenna pattern having a same shape as an antenna pattern of the first antenna;
• and a second antenna pattern extending in the first direction and at least partially overlapping the first antenna pattern when viewed in the direction perpendicular to the first direction, and
• wherein the second antenna pattern electrically connected with at least a portion of the first antenna pattern.