S helical 5.8ghz

thingiverse

This is a 5.8GHz antenna for the RG402 coax, similar to a helical antenna. It should be printed in either ABS or PETG because you'll solder copper lobes attached to the printed jig directly. The coaxial cable will slip onto the jig and be soldered on. I added the top face to shape the wire before adding it to the body. You'll need: * RG402 coaxial cable at full λ, which is 50.7mm with center pin connected. * Center conductor should be 3mm. * Four 0.6mm copper MIG wires to be cut to 47mm length and then trimmed before soldering to the ground. * Eight 8mm heat shrink tubes cut to 5.5mm to hold the lobes before soldering and trimming. * Two extra 0.6mm copper wires, one to be cut to 15mm and soldered to the side lobe at a 15-degree angle inside the trace then bent to 85 degrees along the body. * The other to be cut to 7mm and soldered to the opposite side of the first one in parallel to the lobe. Important disclaimer: This will fry your transmitter if you don't know how to tune an antenna. I advise never using it at all if you don't understand tuning works. Print Settings: Printer: Duplicator i3 Plus Rafts: No Supports: Doesn't matter Resolution: Doesn't matter Infill: 20%