Compact Koch Fractal Dipole RFID Antenna

Abstract

In this paper, the design of Koch Fractal dipole antenna for first, second and third iteration have been presented. The third iteration of Koch Fractal Dipole Antenna shows a total size reduction of 21.25% compared to the basic dipole antenna optimized at the same frequency of 0.92 GHz. The new antenna is proposed based on the structure of the third iterated Koch fractal is designed using Rogers RO3010 substrate with thickness on 1.27 mm. The proposed antenna shows improvement of return loss to -34.57 dB, gain of 1.92 dB, 99% efficiency. The proposed antenna had reduced 17% of length compared to the basic dipole antenna.