ANTENNA DEVICE

摘要

An antenna device is provided to obtain stable radiation characteristics by removing a side lobe and simplifying a feeding structure. An antenna device includes a metal pattern(13), a transmission line(17), a capacitor(21), and an inductor(23). The metal pattern includes a slot. The slot is formed by cutting a part thereof. The transmission line is arranged on the slot. The capacitor is serially connected through the transmission line. One end of the inductor is connected with one of transmission lines. The other end of the inductor is connected to the metal pattern. The inductor is arranged in a parallel state within the slot.