1) stepped-impedance
阶跃阻抗
1.
Secondly, the stepped-impedance resonators are investigated, and the resonance formulas of the resonator which is made up of three different impedance lines are deduced.
其次研究了阶跃阻抗谐振器,推出了由三节不同阻抗线构成的谐振器的谐振关系式,并利用其构建交叉耦合带通滤波器。
2) Impedance stepping
阻抗阶跃
3) acoustic impedence step
声阻抗阶跃
4) stepped impedance resonator
阶跃阻抗谐振器
1.
The fundamental wave response of a stepped impedance resonator and its high order spurious bandpass are analyzed,and a method of designing broad stopband bandpass filters by using parallel-coupled microstrip line stepped impedance resonator is proposed.
对阶跃阻抗谐振器的基波响应及其高次寄生通带进行分析,并提供一种采用平行耦合微带线阶跃阻抗谐振器实现宽阻带带通滤波器的设计方法。
2.
In this method,first,a stepped impedance resonator and a half-wavelength resonator are both employed to construct an assembled multiband resonator.
首先采用阶跃阻抗谐振器和半波长谐振器构建组合多通带谐振器;然后分别采用级联型和伪交指型的耦合结构设计了两种三频滤波器,每种结构都有足够的自由度来获得所需的带宽和中心频率;最后设计并加工了两个工作在2。
5) stepped impedance resonator(SIR)
阶跃阻抗谐振器
1.
Here we designed a miniature coaxial-cavity using stepped impedance resonator(SIR) as resonator element.
作者利用阶跃阻抗谐振器(SIR)作为谐振单元设计了一款小型化腔体梳状滤波器。
2.
According to the basic principle of stepped impedance resonator(SIR),λg/4-type SIRs are adopted as elements to compose cross-coupling multilevel coaxial bandpass filter(BPF).
根据阶跃阻抗谐振器(SIR)的基本原理,采用λg/4型SIR作为单位元件谐振器,组成交叉耦合多级同轴带通滤波器。
6) SIR
[英][sɜ:(r)] [美][sɝ]
阶跃阻抗谐振器
1.
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。
2.
Then used the theory of parallel-coupled filter to design a SIR bandpass filter,and their parameters are simulated and optimized using Angilent ADS 2003,a RF and microwave circuit CAD software.
介绍了阶跃阻抗谐振器(SIR)结构和原理,分析了这种结构谐振器的优越性,在此基础上结合平行耦合线滤波器设计原理设计了一个平行耦合SIR带通滤波器。
3.
It introduces the basic structure and characteristic of the uniformity transmission-line, the Uniformity Impedance Resonator (UIR) and the Step Impedance Resonator (SIR), and analyses how to lead transmission-zero into the stop-band.
介绍了均匀传输线、均匀阻抗谐振器(Uniformity Impedance Resonator,UIR)和阶跃阻抗谐振器(Step ImpedanceResonator,SIR)的结构和特性,并对采用谐振单元与电容(电感)串联可在阻带的任意频点引入传输零点进行了阐述。
补充资料：星接阻抗和三角接阻抗的变换
星接阻抗和三角接阻抗的变换
transformation between starc-onnected and delta-connected impedances
x ing]一e乙日kongl介e sonJ一00}Iez日伙ongde匕一。一〕huon星接阻抗和三角接阻抗的变换(t ransfor-mation betweenstar一eonneeted and delta-eonneeted imPedanees)接成星形的三个阻抗和接成三角形的三个阻抗互相替代的等效变换。它们之间的关系可用一组变换公式表示。按这组公式，用星接阻抗替换三角接阻抗或者反过来，不会影响稳态下电路其他部分的正弦电压和电流，常用于对称三相电路的分析和计算。 图1为三个阻抗21、Z:、23接成星形(又称丫形)。图2为三个阻抗Z小22。、Zal接成三角形(又称△形)。它们之间的变换公式如下:人23土图1星接阻抗图2三角接阻抗(1)将星形连接变换成三角形连接212一Z:+22+2 122及3一22+za十警(1)、|冬|矛231一23+21+2321(2)将三角形连接变换成星形连接z、-二一典乒兴-) 艺‘2士乙“3十乙31…_2 oqZI，}Z。一下万~一二-二二-汁 乙‘2士乙23十乙3‘1_Z。IZoq}艺q一二二一~二，二二--，-二二-~J 乙12十乙23十艺32夕(2) 当三个星接阻抗相等，即21一Z:一23一z丫、三个三角接阻抗相等即212一223一231一Z△时，变换公式是 Z二一32丫，Z丫一Z△/3
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条