3 turn helix antenna 1.28 GHz for FPV

Prints (0)


SummarySo this is my version of a 3 turn helix antenna for my FPV setup. As coil I'm using 2mm stainless steel welding rods. And the reflector i got from a stove burner cover. :-P it's only 0.2mm so i made a reinforcement as you can see in the files. Edit: This is a RHCP holder. If you need a LHCP you just have to mirror it. Edit2: The stainless steel rod where to hard to solder so I took some galvanized steel wire 2mm instead. Edit3: added some tools to make it easier to roll the helix. they are for a LHCP so if you need a RHCP just mirror it ;-)How I Designed ThisI modeled the helix coil from the data i got in the calculator found here http://jcoppens.com/ant/helix/calc.en.php and used that model to cut out holes in the holder to get a perfect match for the wire. This was made in fusion 360

Design Files

File Size

127 KB
361 KB
263 KB
263 KB
68.4 KB
124 KB


Your browser is out-of-date!

Update your browser to view this website correctly. Update my browser now