3D Printed Yagi Antenna for 868MHz. This model is based on the calculations of Mr. Nikolay Bolshakov RA3TOX:

Created from 2 pieces in order to fit into 256x256 Bed. Elements are from Copper Pipe with diameter of 4mm https://www.amazon.de/dp/B08DD8T3L3?psc=1&ref=ppx_yo2ov_dt_b_product_details

Used as TinyGS Ground Station for receiving ISTANBUL LoRa Satellite https://tinygs.com/satellite/ISTANBUL Can be used for Meshtastic. https://meshtastic.org/

VSWR Looks good at around 1.208