Antenna and front end module

A front end module, comprising:

• a circuit board having one surface on which a mounting area is provided;
• an antenna including a substrate having a preset mounting surface facing the mounting area of the circuit board, an antenna pattern part formed on the mounting surface of the substrate and transmitting and receiving a signal within a preset frequency band, and a solder ball group having a plurality of solder balls formed on the mounting surface of the substrate to fix the substrate to the mounting area of the circuit board and disposed at preset intervals around the antenna pattern part to form an air cavity;
• and
• a signal processing integrated circuit mounted on the mounting area of the circuit board to process the signal transmitted and received through the antenna.