Question about fractal antenna feed

i am designing a Sierpinski fractal carpet antenna, but the bandwith of the antenna is limited, can someone give me some advices how to expand the impedance bandwith of this kind of antenna, and what kind of feed is better?


thanks

cybcad

Hi,

I simulated this antenna before, I used proximity coupling as a feed, but at its resonance frequencies its bandwidth wasn't large. However, for a patch antenna you cannot obtain large bandwidth. A friend of mine thus used sierpinski as a slot antenna, and also with proximity feed.

BR
Adel_48

hi Adel_48:
i simulated a Sierpinski fractal carpet antenna feeded by coxial line, i can get multiband but the bandwidth is very limited, i wonder if i can expand the bandwidth by using slot couple to feed it? or is CPW a good choice ?


thx