您要查找的是不是：
- Using the system optimization method, designed the X band DRO, which reached the desired specification. 利用优化的系统设计方法,根据测速雷达对信号源的要求,设计的X波段介质振荡器达到了预定的设计指标。
- The effects of radiation and absorption of raindrops on S and X band radar electromagnetic waves are compared and discussed in this paper. 本文讨论雨滴对船用雷达的两个波段，即S波段和X波段雷达电波的辐射和吸收作用，并且对辐射和吸收作用作出比较，对S波段和X波段的作用也作出了比较。 结果表明雨滴对X波段的雷达电波的辐射作用较吸收作用为大，雨滴对X波段的雷达电波的吸收作用较对S波段的雷达电波的吸收作用为大。
- A frequency stabilized Gunn oscillator is used as the pumping source of the Ist-stage parametric amplifier. 第一级参量放大器,采用体效应振荡器做泵源,加有稳频装置。
- Optical parametric amplifier (FOPA) is a four-wave mixing based on a new type of optical amplifier. 光纤参量放大器（FOPA）是一种基于四波混频的新型光放大器。
- With the two-dimension fully electromagnetic Particle-in-cell(PIC) simulation, the output power of 1.16GW at C band and 270MW at X band in MILO were obtained. 用在阴极端头增加发射电流的办法，在C波段理论得到了1.;16GW的微波输出功率。 利用增加高次谐波的办法在X波段理论获得了270MW的输出功率。
- The optical fiber parametric amplifier (FOPA) is one kind based on four wave mixing new light amplifier. 内容如下：光纤参量放大器（FOPA）是一种基于四波混频的新型光放大器。
- Research of Properties of an Internal Optical Parametric Oscillator (IOPO)and Optical Parametric Amplifier (IOPA)[J]. 引用该论文 柳 强;鞠有伦;姚宝权;王月珠;王 骐.
- Recently, pulses with 4fs duration have been generated by noncollinear phase-matched optical parametric amplifier pumped by 400nm in BBO crystal in the visible spectral range. 目前,通过400nm泵浦的BBO晶体非共线I类相位匹配光参量放大获取的最窄脉冲已达4fs。
- At X band,its advantages are especially useful. In this work, a mathematical model used to optimize DAW (without supports) cavities by SUPERFISH was built and the solution was presented. 给出了利用SUPERFISH程序进行腔形优化的数学模型以及利用该模型对X波段DAW结构的优化设计结果 .
- The two-mode squeezed number states as the common eigenstates of the parametric amplifier Hamiltonian and the generalized two-mode squeeze operator are found. 得到了参量放大器哈密顿量与广义双模压缩算符共同本征的双模压缩数态。
- Electric-optical modulator; quasi-phase-matching; degenerate optical parametric amplifier: Amplitude quadrature squeezed light field; coupled oscillator. 01振幅调制器;准相位匹配;简并光学参量放大;正交振幅压缩态;耦合谐振子
- Recent Progress of Fiber Optical Parametrical Amplifier[J]. 引用该论文 陈婉;董淑福;赵宇波;刘红军;周俊.
- Two-pump fiber optical parametric amplifier (FOPA) with two-section highly nonlinear fibers is proposed and demonstrated, which has broad bandwidth, high and flat gain. 提出和设计了一种宽带宽、高增益和增益平坦的光纤参量放大器，它具有双泵浦和两段高非线性光纤级联的结构。
- Study on a high performance DRO at X band 一种高性能X波段介质振荡器
- X Band Satellite Tracking Antenna X波段卫星跟踪天线
- PHYSICAL DESIGN AND STUDY ON X BAND SW ON AXIS ELECTRON LINAC X-波段轴耦合驻波电子直线加速管物理设计与研究
- Noise figure is minimized by a parametric amplifier 采用参量放大器，即可将噪声系数减低至最低限度。
- non-degenerate parametric amplifier 非退化参变放大器
- nondegenerate electron beam parametric amplifier 非简并电子束参量放大器
- He left when the band began to beat out pop music. 乐队一奏起流行音乐他就走了。
