광대역 특성을 갖는 3층형 소형 모노콘 안테나

초록

In this study, an electrically small 3-stage monocone antenna with wideband characteristics is proposed. The proposed antenna con- sists of a 3-stage monocone radiator, a circular disk located above the radiator, shorting pins connecting the circular disk and the ground plane, and parasitic structures. The impedance matching characteristics in the high-frequency band are improved by dividing the mono- cone radiator into three stages. The insertion of a slot in the circular disk improves the mid-frequency band performance. The low-fre- quency band is expanded by using shorting pins. In addition, by attaching parasitic structures to the ground plane, the impedance-matching characteristics in the mid-frequency band are further improved. The proposed antenna has a −10 dB impedance bandwidth ranging from 0.98 to 11.1 GHz and a monopole-like radiation pattern.

키워드