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aquib said:I am trying to desing a Helical antenna for the 433MHz ISM band.
I want to make the antenna as small as possible, but want a performance close to that of a 1/4 wave.
Design techniques for the helical antenna is what I am looking for.
Cheers
Aquib
aquib said:I but want a performance close to that of a 1/4 wave.
JimB said:Then you need a 1/4 wave!
The performance of the helical is always worse than the straight 1/4 wave.
JimB
Leftyretro said:I think I might have mistaken what is being asked for. It sounds like you guys are talking about a helical wound 1/4 vertical antenna, where I was referencing helical wound BEAM antennas which have very high gain relative to a 1/4 antennas.