【摘要】 无源RFID标签的性能主要取决于其天线。弯折偶极子天线由于小型化的特点,广泛应用于超高频RFID标签。提出一种新的RFID弯折偶极子天线优化策略,将改进的演化算法应用于偶极子天线结构参数的优化,采用二进制数对各参数进行编码,搜索具有全局最优的结构参数,克服了普通搜索方法容易陷入局部最优的缺陷,并结合HFSS进行仿真。结果表明,该优化方法和仿真结果一致,可以快速确定弯折偶极子天线的结构参数。更多还原

【Abstract】 The performance of passive RFID tag is mainly determined by the antenna of this tag, and the bent dipole antenna is now widely applied in the ultra-high frequency RFID tag for its miniaturization. A new optimization strategy is proposed, and the improved evolutionary algorithm is used as the search strategy to optimize the structure parameters of the dipole antenna, the binary chromosome coding is adopted to code the transform coefficients and search the global optimal structure parameters, thus overcoming the problem of general search method easily falling into local-optimum defect. Various experiment results indicate that the improved algorithm is effective and efficient.更多还原