Electronic device for processing radio signal for plurality of communication systems and operating method thereof

An electronic device comprising:

• a first antenna structure comprising antenna elements for performing first frequency band communication;
• a second antenna structure comprising antenna elements for performing second frequency band communication;
• and
• a circuit configured to transmit or receive a radio frequency signal through the first antenna structure or the second antenna structure,
• wherein the circuit comprises:
• a first transmission mixer configured to up-convert transmission signals;
• a second transmission mixer configured to up-convert signals output by the first transmission mixer;
• a divider circuit configured to divide signals output by the second transmission mixer;
• first antenna ports associated with the first antenna structure for performing first frequency band communication based on signals output by the divider circuit;
• a third transmission mixer configured to up-convert output signals from the divider circuit;
• and
• second antenna ports associated with the second antenna structure for performing second frequency band communication based on signals output by the third transmission mixer.