What's wrong with the conductivity of gold ink printing for mobile phone shell?

This is because the effect to be printed has a metallic texture. A certain proportion of metal powder particles are added to the ink to make it conductive.

The metal layer used on the back of the mobile phone should not be too large, do not use the whole large-area pattern, and do not have an annular ring (like an O-shaped, square closed loop), which will short-circuit the sensed high-frequency signal of the mobile phone.