HIDDEN KULDO, ROTATED SQUARE AND KULDO FRACTAL ANTENNAS OF 2.4 TO 5.4 GHZ

Abstract

This paper is introducing three antennas using different fractal structures with desired performance properties such as multi-band behaviour and small size. The proposed fractal patterns are taken of a Square and Koch Snowflake of the third iteration. The antenna is fed with a microstrip (50Ω) transmission line, and the slot structure is to be etched on the reverse side of the substrate. The proposed antennas have been simulated using FR4. The COMSOL software has been applied to analyze the performances of the designed antennas such as return loss, radiation patterns and electrical field. The resulting antennas exhibit an interesting behaviour of multi-band resonant frequency making it suitable for multi-band communication systems including the dual band WLAN and WMAN applications. The effects of antenna parameters on its performance were carried out by parametric study.

Keywords

• COMSOL
• WLAN
• WMAN
• multi-band
• fractal antenna