在双层结构的基础上，结合电容耦合馈电技术，进一步扩展了微带天线的阻抗带宽；
In foundation of the dual-layer structure, combining with capacitive coupled feed technology, the impedance bandwidth of the microstrip antenna has been further expanded;
采用磁场定向矢量控制技术的无刷双馈电机调速系统，其性能基本能够满足运行要求，但存在超调及动态稳定慢等问题。
The brushless doubly-fed machine (BDFM) is based on the technic of field oriented control and the performance of its adjustable-speed drive can ultimately meet the need of the operation.
分析了各种馈电线自动化技术的控制模式。
Various control modes of power feeder automation technology are analyzed.
根据无刷双馈电机的特性，采用磁链定向的矢量变换控制技术设计了一种新型功率控制系统。
According to the characteristics of brushless doubly-fed wind turbine and adopting flux linkage oriented vector transformation control technology, a new type of power control system is developed.
介绍了煤矿井下用于馈电开关的一种新型保护器的主要技术指标、总体设计、硬件电路框图和软件设计。
This paper introduces the main qualifications, overall design, hardware circuit diagram and software design of a new protector that can be used in the feeder switch in the shafts of the coal mines.
该放大器采用全差分结构以获得高输出摆幅，利用源反馈技术改善线性度，并设计了共模反馈电路以稳定共模输出电压。
The amplifier employs fully differential structure to obtain high output voltage swing, and uses source degeneration techniques to improve the linearity.
馈电网络是短波多模多馈天线系统的重要组成部分，因此，馈电网络的设计是多模多馈天线系统设计的关键技术，直接分析其结构非常困难。
Feed network is an important part of shortwave multimode multifeed antenna system. The design of feed network is a pivotal technique in the process of projecting antenna system.
这种方法利用最新型的编码反馈电路技术（并非正反馈技术），进行各种阶梯波发生器的设计。
The method which is presented can be also used for design of square wave generator.
本文对无刷双馈电机变频调速系统的关键技术进行了较为全面的从理论到仿真的深入研究，为今后进一步的研究奠定了一定的理论基础。
The paper has done all-around study on the key technology of BDFM variable frequency system from theory to simulation and has established stability theoretical foundation for continue study work.
天线单元的设计、馈电网络的设计、天线阵列的设计、波束赋形技术的研究。
This paper describes the composition of an L - band traveling wave feeding network, and focuses on the design and implementation of its critical component—directional coupler.
天线单元的设计、馈电网络的设计、天线阵列的设计、波束赋形技术的研究。
This paper describes the composition of an L - band traveling wave feeding network, and focuses on the design and implementation of its critical component—directional coupler.
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