ESP32 Antenna Jig

Have an ESP32 module with the PCB antenna and would like to add an external antenna without destructive modifications? Use this jig with a length of 62mm long, 0.5mm diameter enameled copper wire. Then affix on top of the ESP32 PCB antenna. I found this allowed me to see around 2-3db increased gain. Details of the modification can be found here ESP32 Range Extender / Antenna Modification | Peter's electric trick and electronic blog