ANTENNA

An antenna is provided, which may include a main radiation body, a signal feed-in end, a connection section, a ground section and an impedance matching adjustment section. The main radiation body may include a base side, a lateral side, a first inclined side and a second inclined side; the included angle between the first inclined side and the lateral side may be obtuse; the included angle between the first inclined side and the second inclined side may be obtuse; the included angle between the second inclined side and the base side may be acute. The signal feed-in end may be coupled to the main radiation body. The connection section may be coupled to the main radiation body. The ground section may be coupled to the connection section. The impedance matching adjustment section may be coupled to the ground section.