Electronic device for obtaining reflection coefficient of antenna and operating method thereof

An electronic device comprising:

• a transceiver comprising an analog-to-digital converter (ADC);
• a coupler coupled to the transceiver through a feedback path;
• at least one memory storing instructions;
• and
• at least one communication processor configured to execute the instructions to:
• control a sampling rate and a sampling count to convert an analog signal into a digital signal based on whether a resource block size of a first transmission signal and a second transmission signal transmitted through the transceiver exceeds a threshold value;
• convert a forward signal and a reverse signal into digital signals through sampling with the controlled sampling rate and the controlled sampling count;
• obtain a forward voltage based on the first transmission signal and the converted forward signal;
• obtain a reverse voltage based on the second transmission signal and the converted reverse signal;
• and
• identify a reflection coefficient of an antenna with respect to from an input of a tuner connected to the coupler based on a ratio between the forward voltage and the reverse voltage,
• wherein the forward signal corresponds to the first transmission signal received by the transceiver through the feedback path from the coupler, and
• wherein the reverse signal corresponds to the second transmission signal received by the transceiver through the feedback path from the coupler.

An operating method of an electronic device, the operating method comprising:

• providing a digital transmission signal to a transceiver;
• receiving a digital feedback signal from the transceiver;
• and
• obtaining a reflection coefficient based on the digital transmission signal and the digital feedback signal,
• wherein the digital transmission signal is converted into an analog signal by a digital-to-analog converter (DAC) of the transceiver, and
• wherein the digital feedback signal is converted into a digital signal by an analog-to-digital converter (ADC) of the transceiver based on sampling information controlled according to a resource block size of the digital transmission signal.