Monocone Antenna with Inverted -L and -F Structure

The monocone antenna is a type of monopole antenna and has wideband characteristics. In this paper, a low-profile monocone antenna by using planar inverted-F structure is proposed. The characteristics of the proposed antenna are analyzed by simulation. As a result, the low-profile antenna can be obtained while the wideband is maintained. Relative bandwidth of VSWR $\le$ 2 is more than 166.3%. In addition, miniaturization of the monocone antenna can be found.