非接触式IC卡是在卡中敷设天线，利用天线的接收发射，与读写器的天线交换信号，实现一种无线通讯，非接触式IC卡又被称为射频卡（RFC——Radio Frequency Card），简称RF卡，非接触式IC卡系统被称为射频识别系统（RFID——Radio Frequency Identification）。
RF无线射频天线设计指南（英文） There seems to be little information on compact antenna design for the low power wireless field. Good antenna design is required to realize good range performance. A good antenna requires it to be the right type for the application.
