The (frequency) converter (adopted) multilevel technology with cells series, which could obtain stepped SPWM waveforms, and could drive ordinary motor directly with no output filter.
该变频器采用单元串联多电平技术，可以得到阶梯SPWM波形，无需输出滤波器，可直接驱动普通电动机。
This paper presents a novel synthesis method of dual-band bandpass filter composed of both defected stepped impedance resonator DSER.
该文提出一种混合采用微带阶梯阻抗谐振器和缺陷阶梯阻抗谐振器的新型双通带滤波器设计方法。
This filter is composed of three stepped-impedance resonators(SIRs), and can decrease the length of resonator effectively.
该滤波器采用阶跃阻抗谐振器（SIR）作为谐振单元，可以有效缩短谐振器长度。
The structure and theory of Stepped Impedance Resonator (SIR) is proposed in this paper. A SIR band - pass filter is simulated and optimized by microwave CAD software.
介绍了阶跃阻抗谐振器(SIR)的结构和原理，在此基础上用微波cad工具仿真优化了SIR微带发卡带通滤波器。
The elliptic-function filter using hairpin stepped impedance has such advantages as compact structure, low insertion loss, broad-stopband and high steep.
应用发夹线高低阻抗线设计的椭圆函数滤波器具有体积小、插损低、宽阻带、高陡峭度的显著优点。
Stepped Impedance Resonators (SIR) taken as basic resonator unit of coaxial filters, a kind of generalized Chebyshev coaxial-cavity filter through cross coupling is designed.
利用阶跃阻抗谐振器SIR作为同轴腔滤波器的基本谐振单元，设计了一个利用交叉耦合来实现广义切比雪夫函数的同轴腔体滤波器。
Stepped Impedance Resonators (SIR) taken as basic resonator unit of coaxial filters, a kind of generalized Chebyshev coaxial-cavity filter through cross coupling is designed.
利用阶跃阻抗谐振器SIR作为同轴腔滤波器的基本谐振单元，设计了一个利用交叉耦合来实现广义切比雪夫函数的同轴腔体滤波器。
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