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非对称单脊波导带通滤波器的设计
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作者 李磊 冯文文 汪伟 《雷达与对抗》 2010年第1期38-40,52,共4页
介绍了非对称单脊波导带通滤波器的基本原理,详细描述了准确设计该滤波器的方法,包括耦合尺寸的提取、谐振器尺寸的逼近及电纳斜率参数的获取。给出了X波段实例的详细设计过程及测试结果。
关键词 带通滤波器 非对称单脊波导 电纳斜率参数
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电网潮流分布计算中容易混淆的问题
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作者 李春容 《重庆电力高等专科学校学报》 2000年第3期16-19,共4页
针对学生在手算电网潮流分布时因对参数的理解不清楚而造成计算的出错,提出建立实用计算等值电路以及确定计算方向等方法,帮助学生更方便地掌握电网潮流计算。
关键词 电网潮流分布 计算等值电路 电力系统 教学实践 电纳参数
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Synthesis of flowerlike nickel particles and their microwave absorbing properties 被引量:3
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作者 齐海萍 曹海琳 黄玉东 《Journal of Central South University》 SCIE EI CAS 2014年第8期3007-3012,共6页
Two kinds of nickel particles with flower-like struc~'es assembled with a number of nano-flakes were synthesized and the relationship of their morphology and microwave absorbing properties was studied. The electromag... Two kinds of nickel particles with flower-like struc~'es assembled with a number of nano-flakes were synthesized and the relationship of their morphology and microwave absorbing properties was studied. The electromagnetic parameters of these flower-like Ni were measured with vector network analyzer at 2-18 GHz frequency and the reflection losses (RL) with different sample thicknesses were calculated. The results indicate that the flower-like nickel-wax composites with the sample thickness less than 2 mm show excellent absorbing ability. This result is expected to play a guiding role in the preparation of the highly efficient absorber. 展开更多
关键词 NICKEL FLOWER-LIKE microwave absorbing properties
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