Research Article

Narrowband-to-Narrowband Frequency Reconfiguration with Harmonic Suppression Using Fractal Dipole Antenna

Table 2

Reconfigurable fractal antenna.

ReferenceAntenna structureNumber/type of switchesComments

[10]Sierpinski gasket6/MEMS switchChanging the frequency from 2.4 GHz, 5.7 GHz, and 9.4 GHz to 18 GHz
[6]Sierpinski gasket4/MEMS switchChanging the frequency from 7 GHz, and 8 GHz, 14 GHz to 23 GHz
[9]Fractal tree204/copper strip (ideal switch)Changing the frequency from 600 MHz to 1600 MHz (approximately 20 bands)
[7]Hilbert curve2/metal patch (ideal switch)Changing the frequency from 620 GHz, 627 GHz to 635 GHz
[4]Hilbert curve8/metal patch (ideal switch)Changing the pattern at f = 9.0 GHz
[8]Koch Patch18/copper strip (ideal switch)Changing the pattern at 60 GHz and 80 GHz
[11]Square fractal loop4/metal patch (ideal switch)Changing the pattern at f = 8.4 GHz
Proposed in this paper TMFDB2550/copper strip (ideal switch)Changing the frequency from 600 MHz to 3.5 GHz with suppressed higher order mode