分数带宽 fractional bandwidth(1)   fractional bandwidth      In the paper,the design method of micro-strip open loop bandpass filter is introduced,and one example of filter with 1.85 GHz center frequency,10.5% fractional bandwidth and the second one with 2.15 GHz center frequency,9% fractional bandwidth are given.      分析了具有传输零点带通滤波器的设计方法,给出了中心频率为1.85 GHz,分数带宽为10.5%和中心频率为2.15 GHz,分数带宽为9%的微带开路环带通滤波器设计实例。 短句来源   “分数带宽”译为未确定词的双语例句      Ultra-wide-band(UWB) wireless communication utilizes signal with a very wide bandwidth around a relatively low center frequency to transmit information.      超宽带无线通信是指采用了一种相对中心频率而具有较大带宽的信号(通常指分数带宽大于25%的信号)来传输信息的通信方式。 短句来源   相似匹配句对      Fractional Covered Graphs      分数覆盖图 短句来源      BANDWIDTH FOR TWO-STAR      双星的带宽 短句来源      ON BANDWIDTH OF THE (m, n)-CONFIGURATION      (m,n)构形的带宽 短句来源      WAKE FRACTION OF THE TRAWLER      拖网渔船的伴流分数 短句来源      At the same time, its parameters is optimized by making use of FRFT and Generalized Time-Bandwidth Product(GTBP).      并利用分数阶Fourier变换和广义的时宽-带宽积来优化GCT 的参数。 短句来源 查询“分数带宽”译词为用户自定义的双语例句     我想查看译文中含有：的双语例句 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法，我们为您准备了出自英文原文的大量英语例句，供您参考。   fractional bandwidth The dependence of the steepness of the slopes of the amplitude-frequency responses of such filters on the design parameters and the filter fractional bandwidth is studied in the quasi-static approximation in a wide range of operating frequencies. 例句来源       It achieved an insertion loss of -2.4?dB, and a 3?dB fractional bandwidth of 8%. 例句来源       An upgraded MMA operating near 300 GHz with twice the currently proposed number of antennas, a 20% fractional bandwidth, and improved receivers could detect Jupiter at 4 pc in a few months. 例句来源       The proposed constant-radius probe couples thin-film microstrip line, to full-height rectangular waveguide with better than 99% efficiency (VSWR ≤ 1.20) and 45% fractional bandwidth. 例句来源       The studied results demonstrate that this antenna has wide operating bandwidth in 54.3-67 GHz (about 20.9% of the fractional bandwidth), unidirectional radiation pattern and good linear polarization characteristic. 例句来源       更多                    In this paper, the UWB radar equation is deduced. The distinctions between the classical and the UWB radar equation are studied. Simulation results indicate that the UWB radar performs better than the classical radar given that the signal-to-noise at the receiver input is equivalent.             基于超宽带雷达方程与信号频率特性的相关性，推导出其距离方程。以超宽带ＬＦＭ雷达信号为例，对超宽带与窄带雷达方程进行了比较和数值模拟。结果表明；随着信号分数带宽增加，超宽带雷达具有更远的作用距离。 文摘来源          Ultra-wide-band(UWB) wireless communication utilizes signal with a very wide bandwidth around a relatively low center frequency to transmit information.The authors analize the signal design of UWB when it was formutated in two-element condition based on the optimal method over the free-space and mulitipath channel.             超宽带无线通信是指采用了一种相对中心频率而具有较大带宽的信号(通常指分数带宽大于25%的信号)来传输信息的通信方式。在充分考虑超宽带信号在自由空间和密集多径环境中传输特性的基础上,基于最优化方法分析了二元情况下的超宽带通信信号的设计思想,并给出了归一化平方Euc lidean距离、误码率与时移参数关系的仿真结果。 文摘来源          A design method of micro-strip open loop diplexers with good isolation is presented.The micro-strip diplexers are made up with two highly selective micro-strip bandpass filters,which have a pair of transmission zeros between the pass bands.In the paper,the design method of micro-strip open loop bandpass filter is introduced,and one example of filter with 1.85 GHz center frequency,10.5% fractional bandwidth and the second one with 2.15 GHz center frequency,9% fractional bandwidth are given.With the aid of mi...             介绍了一种高隔离度微带双工器的设计方法。该双工器由2个在通带附近具有一对传输零点的微带带通滤波器组成。分析了具有传输零点带通滤波器的设计方法,给出了中心频率为1.85 GHz,分数带宽为10.5%和中心频率为2.15 GHz,分数带宽为9%的微带开路环带通滤波器设计实例。利用微波CAD软件对连接双工器T型接头的微带尺寸进行了优化,仿真结果表明该双工器具有较好的频带响应及隔离度。 文摘来源   << 更多相关文摘         相关查询: 带宽 分数 带宽估测 分数共振 频谱带宽 准带宽 分数树形图 分布分数 带宽极限 外存带宽 度量带宽 带宽划分  对查询结果不满意

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