Fractal stacked monopole with very wide bandwidth

Abstract

A parallel feed stacked fractal antenna using the square Sierpinski and diamond Sierpinski carpet is introduced. The design achieves a good input impedance match throughout the passband (1 – 20 GHz) but occasional slight mismatch occurs. Three different experimental results are shown and the measured gain of these antennas is generally > 0 dBi. These antennas are suitable for applications in picocell environments for the operating bands of GSM, DECT and WLAN systems.