How to make antenna spring

Material: spring steel, stainless steel, copper wire, electric heating wire..etc

Antenna Springs

Also known as T-shaped spring according to its shape

Antenna springs are often used in car radios and radios.

The antenna spring is designed to expand the length with the line length as the impedance.

Set the band waveform in the circuit board.

Generally widely used in toys, or all kinds of electronic equipment ... for electrical purposes.