基于改进PSO算法优化RF MEMS功分器设计

发布时间：2018-03-19 16:03

本文选题：粒子群优化(PSO)算法　切入点：射频微电子机械系统(RF　出处：《微纳电子技术》2017年04期 　论文类型：期刊论文

【摘要】：为了实现对射频微电子机械系统(MEMS)波段威尔金森功分器电路的精确设计和优化,使达到的设计目标满足性能要求,采用先进设计系统(ADS)软件对工作频带为32~36 GHz的RF MEMS功分器进行了建模仿真,并得到初始的电路设计参数。通过使用结合柯西变异的改进的粒子群优化(PSO)算法对RF MEMS功分器的初始电路设计参数进行优化,采用矩阵实验室(MATLAB)软件和高频结构仿真器(HFSS)软件进行联合仿真实现优化过程,最终得到满足设计目标的RF MEMS功分器的性能曲线,以及对应的功分器优化后的电路设计参数。结果表明,优化后的RF MEMS功分器回波损耗比设计目标优化了2.5 dB,插入损耗优化了0.3 dB,隔离度达到了-20 dB的设计要求。最终通过仿真验证了改进的PSO算法能够快速有效地对RF MEMS功分器的电路参数进行优化达到RF MEMS功分器设计的性能要求。
[Abstract]:In order to realize the accurate design and optimization of the Wilkinson power divider circuit in MEMS band of RF microelectromechanical system, the design goal can meet the requirement of performance. The RF MEMS power divider with working frequency band of 32 ~ 36 GHz is modeled and simulated by using advanced design system (ADS) software. The initial circuit design parameters of RF MEMS power divider are optimized by using improved particle swarm optimization (PSO) algorithm combined with Cauchy mutation. The optimization process of RF MEMS power divider, which meets the design goal, is achieved by using matrix lab MATLAB software and high frequency structure simulator (HFSS) software, and the performance curve of RF MEMS power divider is obtained. And the optimized circuit design parameters of the corresponding power divider. The results show that, The optimized RF MEMS power divider's echo loss ratio is optimized by 2.5 dB, the insertion loss is optimized by 0.3 dB, and the isolation degree is up to -20 dB. Finally, the simulation results show that the improved PSO algorithm can quickly and effectively deal with RF. The circuit parameters of MEMS power divider are optimized to meet the performance requirements of RF MEMS power divider design.
【作者单位】：太原理工大学信息工程学院;
【基金】：微细加工光学技术国家重点实验室基金资助项目(KFS-4)
【分类号】：TN626

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