The present disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a higher data transmission rate after a 4th generation (4G) communication system such as long-term evolution (LTE). An antenna in a wireless communication system may include: a plurality of antenna elements including a first antenna element and a second antenna element, the first antenna element and the second antenna element may include patch antennas, the first antenna element and the second antenna element may be disposed at a narrower interval than a reference interval, and the patch antenna may have an asymmetry structure.