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On the design of broad-band loaded wire antennas using the simplified real frequency technique and a genetic algorithm

机译:基于简化实频技术和遗传算法的宽带有线天线设计

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摘要

A novel design methodology for broad-band loaded wire antennas is presented that combines the genetic algorithm and the simplified real frequency technique (SRFT) to remove the requirement of choosing the types of load circuits and matching networks a priori. Analytical expressions for the impedance functions of load circuits and matching networks are obtained in the form of rational polynomials via the SRFT. The location of loads on the antenna and the resistance functions of the load circuits and matching networks are optimized using a genetic algorithm. Maximization of system gain in the azimuth and minimization of voltage standing wave ratio are sought as design objectives. The circuit topologies and the component values are automatically arrived at using Darlington synthesis after the optimization process is complete. Also demonstrated, is the use of this procedure to achieve broad-band operation in the HF band for the unloaded and loaded monopoles assuming electronically switched matching networks.
机译:提出了一种新颖的宽带负载有线天线设计方法,该方法结合了遗传算法和简化的实频技术(SRFT),消除了先验选择负载电路类型和匹配网络的要求。通过SRFT以有理多项式的形式获得负载电路和匹配网络的阻抗函数的解析表达式。使用遗传算法优化天线上的负载位置以及负载电路和匹配网络的电阻功能。寻求将系统方位角的最大化和电压驻波比的最小化作为设计目标。优化过程完成后,使用达林顿综合自动得出电路拓扑和组件值。还证明了使用此过程可以在假设有电子开关匹配网络的情况下针对已卸载和已加载的单极子在HF频段实现宽带操作。

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