LoraWAN antenna 868 MHz
thingiverse
These are parts to build a LoRaWAN antenna. The measurements in pic5 are millimeters and for 868 MHz. I use isolated copper wire, diameter 1.1 mm. The coil is 10 turns on 6 mm drill. It is designed for a N-connector so low loss cable like RG-213 can be used. Update (08.03.2020): Radials are 86 mm long measured to the center of the connector and at an angle to the vertial of 110 degrees. Version 2 is 1.6 mm copper wire without isolation. Here the coil is 12 turns again on 6 mm drill. Radials and printed parts are unchanged.
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