摘要
研究了遗传算法对通信泄漏同轴电缆进行结构参数优化的方法,分析了漏缆的耦合损耗,并将仿真结果与理论计算结果进行了对照。文中对工作频率为800MHz的周期开槽漏缆进行了优化,使其95%置信度耦合损耗达到70dB,电压驻波比达到1.1。在此基础上比较了在自由空间和靠近理想导体时漏缆的辐射场,分析了置于金属壁附近时导电壁对漏缆耦合损耗的影响。文中研究结果对泄漏同轴电缆的设计和应用有一定参考价值。
The Genetic Algorithm （GA） has been adopted to optimize the structure parameters of leaky coaxial cable （LCX） in this paper. The LCX＇s coupling loss （Lc） has been analyzed, and the Lc＇s simulation and the theoretical results were compared. The 800MHz cycle slotted LCX has been optimized, and the simulation results show that Lc95 is 70dB and the voltage standing wave ratio （VSWR） is 1.1. Furthermore, the radiation pattern difference of LCXs between those in free space and close to well conducting body has been discussed based on the simulated results. The influences on Lc caused by the conducting body wall has also been analyzed. The results in this paper are valuable for LCX designing and practical application.
出处
《微波学报》
CSCD
北大核心
2010年第1期76-80,共5页
Journal of Microwaves
基金
国家自然科学基金(60673143)
浙江省科技计划项目(2006C21020)
关键词
泄漏电缆
遗传算法
耦合损耗
Leaky coaxial cable（LCX）, Genetic algorithm （GA）, Coupling loss（Lc）
