Study on the CSE problem induced by shielding can during smart mobile phone design

In this Paper firstly, the CSE (Conducted Spurious Emission) problem induced by shielding can in smart mobile phone design is experimentally analyzed, and the feasible solution is found. Then, the elements of circuits, which can be influenced by shielding can in smart mobile phone are classified into two categories, and they are the components and the micro-strip line. At last, by method of CST simulation the influence from shielding can´s top face and wall to impedance of micro-strip line is further studied, and the guidelines for micro-strip line design to avoid shielding can´s influence are also given.