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A Broadband Miniaturized Log-periodic Dipole Antenna

This paper presents a miniaturized log-periodic dipole antenna using Koch fractals. The proposed antenna in this paper allows the lateral area of the antenna to be reduced by Koch fractalization of the dipole. Simulation is carried out by HFSS 20.0 software, and results show that the antenna works in a frequency band ranging from 0.7 to 3.7 GHz. Across the entire frequency band, good impedance matching, high gain and good front-to-back ratio (FBR) can be achieved.