J-pole Antenna Design Pdf < LEGIT · 2026 >

Building a "Copper Cactus" J-pole is the most common DIY approach due to the durability and availability of copper plumbing pipe.

Mount the antenna to a mast or support and adjust the spacing and configuration as needed. j-pole antenna design pdf

: The spacing between the radiator and reflector elements can be chosen based on practical considerations, such as the desired impedance and efficiency. Building a "Copper Cactus" J-pole is the most

Because real-world factors (proximity to objects, mast interaction, pipe diameter) affect resonance, you must tune the antenna. pipe diameter) affect resonance