您要查找的是不是:
- microwave frequency band 微波频段
- This effect is obvious at lower frequency band. 这种效应在振动低频区段更为显著。
- The assigned frequency band is 928 MHz to 902 MHz. 那分配频率乐团是 902个百万赫兹至 928个百万赫兹。
- By makinguse of new compensate technique and employing microwave guide component,the frequency band width of coax-ial cable reaches 500 MHz. km. 高频同轴电纽采用了新的补偿技术和微带元件后,频带宽度达到500MHz·km;
- Wide frequency band, high power, low losses and wide temperature coefficient are the developing trends of microwave ferrite materiel. 微波铁氧体材料的发展趋势是宽频带、大功率、低损耗、宽温度系数。
- Josephson junction mixer has much excellence, including its high sensitivity and harmonic, low local oscillator frequency and microwave power, low noise and wide frequency band. 摘要高温超导混频器具有灵敏度和谐波次数高、所需的本振和微波信号功率小、噪声低、工作频带宽等诸多优点。
- Analysis indicates the potentialities that the new device would show significantly higher power than that of a bipolar transistor and a FET at the microwave frenquencies, and have a rather wider frequency band. 分析表明这种新器件在微波频率下具有远高于双极型晶体管和场效应晶体管的功率潜力;并可得到较宽的带宽.
- SMA series connectors have the advantages of miniature, wide frequency band, low VSWR, high stability and reliability.They are widely used in airspace, microwave communication and various apparatuses. 该连接器具有体积小,工作频带宽,电压驻波比低,性能稳定,可靠性高等特点,已被广泛应用于宇航、微波通讯及各种精密电子仪器设备中。
- DUV (Data Under Voice) is introduced.It permits signals to "hitch-hike" on existing microwave radio systems by using the lower end of the frequency band not normally used for voice. DUV(话下数据)推出,它允许信号在现有的微波无线电系统中“搭便车”,使用微波频带中的低端部分,通常不用于话音传输。
- In this paper, the design scheme of an agile microwave frequency synthesizer which adopts DDS+PLL is discussed. 本文讨论采用DDS+PLL的捷变微波频率合成器的设计方案。
- We can't hear any program when we turn our radio onto this frequency band. 当收音机调到这个频段上时,什么节目也收听不到。
- Several methods such as filter,dispersive line,and heterodyne for high power microwave frequency diagnosis are introduced and discussed. 本文介绍了诊断高功率微波频率的滤波法、色散线法、外差法的原理及其装置的设计、性能和应用结果。
- For a magnetic field of 2.5 T,diode voltage of 710 kV,and diode current of 10 kA,the conversion efficiency is 26.6% with a microwave frequency of 7.5 GHz and a power of 1.21 GW. 在磁场为2.;5T、二极管电压为710 kV、电流为10 kA的条件下;获得了频率为7
- From the results, it is found that data from the third type of combination of SSM/I microwave frequency channels is more accurate at estimating the rainfall in typhoon periods. 研究结果显示,所建立之类神经网路以利用第三种SSM/I微波频道组合,可较准确预测海面上之台风降雨量;
- Another attribute is the flux or radiant power that can be delivered in that narrow frequency band. 另一个性质就是在这样窄的频带内可以给出很高的光通量或辐射功率。
- A specified frequency band for the transmission and reception of electromagnetic signals,as for television signals. 频道,波道传送和接收电磁信号的一特定的频率波段,如电视信号
- The design is very suitable for wireless communication systems which work in ISM frequency band. 所设计的软硬件接口非常适合在ism频段的无线通信系统中应用。
- Superconductivity - Part 7: electronic characteristic measurements - Surface resistance of superconductors at microwave frequencies. 超导性。第7部分:电子学特性的测量。
- The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band. 声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。
- Analyse of Frequency Band in Acceleration Measurments during Ejection and Parachuting. 弹射和开伞过载测量中的频率分析。
- 今日热词
-
- 深远海浮式风电平台 - deep-sea floating wind power platform
-
- 京雄高速公路 - Beijing-Xiongan expressway
-
- 农业及相关产业增加值 - the added value of agriculture and related industries