Samsung has developed a specialized electronic pen for foldable screen devices, equipped with a flexible FPC antenna that can adaptively adjust the signal direction by bending the pen body, perfectly adapting to the portable form of foldable screens. The antenna is made of polyimide flexible substrate, which can withstand 180 ° repeated bending. After 10000 bending tests, the signal transmission performance has no attenuation and still maintains a gain of 1.8dBi.
The technical team optimized the layout of the antenna radiator to ensure that the signal coverage deviation is less than 5 ° when the pen body is bent, ensuring that the electronic pen can be stably connected when the folding screen is unfolded and closed. According to actual testing, the delay of the electronic pen in the folded and unfolded states when writing on the Samsung Galaxy Z Fold 6 is consistent, both as low as 8 milliseconds. It has become a core accessory for folding screen devices and sold over 500000 units in its first month of release.
