带通滤波器

With internationally latest studies, the paper also proposes some biquadrate filters which are capable to perform the functions of second-order low pass、 high pass、 band pass、 band stop、 all pass filtering by selecting one of the three inputs or their proper combinations from the same configuration, furthermore whose natural frequency and the quality factor can be tuned independently. Then a continuous-time biquadratic filter using CCCII is proposed, which can be used in hearing aids and in other analog signal processing applications. Lastly a current mode and a voltage mode novel n-order filters of multifunction are presented. Not all both of the n-order filters are electronic tunable,but also they are integrated conveniently and compatible with VLSI technology.

尽量的全面归纳以电流控制传送器为有源器件的有源网络模拟电路、模拟信号处理电路，借鉴国内外最新研究成果，提出两种基于CCCⅡ的双二阶滤波器，这些电路在不需要改变电路结构的情况下，能同时实现低通、高通、带通、带阻或全通多种滤波功能，并且滤波器的特征频率ω_0和品质因数Q可实现独立调节；其中一种基于CCCⅡ的双二阶滤波器，首次提出将CCCⅡ应用于可编程助听器领域；最后设计了两种高阶滤波器，电压模式和电流模式各一种，这两种滤波电路均能实现多种滤波功能，能实现滤波器参数的电调谐，具有易于集成等优点。

Microwave technique ; bandpass filter; complementary split ring resonators; zeroth-order resonant; resonant frequency ; susceptance slope parameter

微波技术；带通滤波器；互补分裂谐振环；零阶谐振；共振频率；导纳谐振参数

By cascading a delay interferometer as a comb filter with a tunable bandpass filter,and employing a saturable absorber formed by a unpumped polarization-maintaining EDF to select the single-longitudinal-mode of the laser, a stable wavelength-tunabledual-wavelength single-longitudinal-mode fiber laser is demonstrated.

4将梳状滤波的延迟干涉仪与可调带通滤波器进行级联，用未泵浦的保偏掺铒光纤饱和吸收体进行单纵模滤波，获得了波长可调的双波长单纵模掺铒光纤环形激光器。

The frequency adjusting method of resonator through changing the width of end short circuited was proposed.

用阶梯阻抗平行耦合线实现了中心频率为1GHz和1.8GHz带通滤波器。

In this paper, the band pass filter technology for the design of a preliminary study and try to actual design.

本文对带通滤波器的设计技术进行了初步的研究并尝试了实际的设计。

Consider the electronic band pass filter as shown.

考虑一个如图所示的电子带通滤波器。

The device is made up of two sections: a cascaded antialiasing + switched capacitors 8th bandpass filter for precise RDS band selection and a demodulating section that performs the extraction od RDS data stream and clock, to be further pro- cessed by a suitable RDS decoder.

该装置是由两部分组成：一层叠抗锯齿+开关电容器用于精确RDS的波段选择第八带通滤波器和解调部分，它执行外径RDS数据流和时钟提取，将进一步支持处理过的由一个解码器适合铁路发展策略。

This module consists of two stages frequency doublers, a bandpass filter between two frequency doublers and a millimeter wave power amplifier with a microstrip of waveguide transition.

该文设计了一种Q波段宽带四倍频放大组件，该组件包含两级二倍频器、两级之间的带通滤波器和一级毫米波功率放大器，最后通过微带到波导过渡输出。

In this dissertation, novel microwave bandpass filters are investigated.

论文对新型微波带通滤波器的实现进行了研究。

These devices provide the bandpass filtering of the analog signals prior to encoding and after decoding.

这些器件提供了带通滤波器的模拟信号之前，编码和解码器后。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。