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。
This filter is composed of three stepped-impedance resonators(SIRs), and can decrease the length of resonator effectively.
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 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.
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.
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