Analysis and research on the resonance of mobile phone shielding cabinet

Abstract In order to cut off the connection between mobile terminal and communication base stations or Wi-Fi, it is necessary improve electromagnetic shielding efficiency of phone cabinet. This paper analyzes resonant characteristics cabinets. The test method has been introduced. Through Maxwell wave equation boundary conditions, cavity frequency every small drawer on cabinet derived, rectangular research model was established. Using high-frequency finite element (FEM) simulation calculate cut-off first 10-order high-order mode in cavity, standing field distribution analyzed. can offer a theory instruction for product design shielding.