抄録
For pulse noise and high frequency measurements in electromagnetic compatibility, efficient small antennas of broadband frequency characteristics are required in various information system. Such broadband antennas are very useful for mobile communications and information transport system. Various antennas have so far been used with limited bandwidths. It becomes very important to develop a broadband antenna of wideband frequencies. In this research, we proposed an efficient small bow-tie antenna using semi-circular disks with hole slots, and anlyzed antenna characteristics of gain and input impedance using FDTD method comparing with other bow-tie antennas.