A current gain cut-off frequency of 17 GHz and a maximum oscillation frequency of 40 GHz were obtained through small signal measuremen.
小信号测试表明器件的fT为17GHz、最高振荡频率fmax为40GHz;负载牵引测试得到2GHz下器件的饱和输出功率密度为4。
By using base-emitter self-alignment and air-bridge technology, the base resistance of SiGe heterojunction bipolar transistors(HBT) together with the capacitance between collector and base is reduced; in addition, the maximum oscillation frequency (f_(max)) is improved.
采用基区及发射区自对准和空气桥技术,降低了SiGe异质结晶体管器件的基极电阻及集电极和基极之间的结电容,提高了SiGe异质结晶体管器件的最高振荡频率fmax。
The paper is begun with analyzing the oscillatory condition A·F·>1, and the oscillatory frequency is worked out based on the phase balance condition A+ F=2nπ.
本文从分析A· F· >1这个起振条件入手 ,依据相位平衡条件A +F =2nπ ,求得振荡频率f0 ;依据 |A· F·| >1,求满足起振条件时所需的晶体管及电路参数值 。
If we introduce the ladder-shaped circuit simple in good time,the oscillating frequency and oscillating condition of RC phase shift oscillating can be w.
目前RC 移相式振荡电路在振荡频率固定且对波形要求不高的一些电子设备中仍占有相当比重。
Theoretical research on equivalent diameter and oscillation frequency of miniature regenerator;
微型回热器等效直径与振荡频率的理论研究
The oscillation frequency only was the function of oscillating tube length, not influenced by the spliter.
振荡频率几乎不受分流劈距的影响 ,它只是振荡管长的函数。
Based on Matlab image processing tool,this paper provides a new method of getting the flame oscillation frequency by applying fast Fourier transform to time variation of image correlation coefficients of a continuous image sequences.
振荡频率是燃烧火焰的一个重要基本参数,利用Matlab图像分析工具,分析了连续火焰图像序列的相关性,并对图像相关系数随时间的变化过程进行快速傅里叶变换,从而提取出火焰的振荡频率。
According to high frequency oscillation warform collected using on-line monitoring when accident taken place at short range.
依据在线监测采集到的系统近区故障时的高频振荡波形 ,结合计算结果进行了分析研究 ,提出了事故原因的看法 ,给出了相关结
maximum oscillating frequency of table
工作台最高振荡频率
An oscillator for generating the carrier frequency of a transmitter.
主控振荡器产生载波频率的振荡器
variable frequency crystal oscillator
可变频率晶体振荡器
Frequency-agile local oscillator
频率捷变本地振荡器
automatic frequency control generator
自动频率控制振荡器
For very high frequency clocks, a surface acoustic wave (SAW) oscillator is preferable.
对于非常高的频率时钟，用声表面波振荡器更好。
A High Precision Clock Oscillator Based on Frequency-to-Voltage Converter
一种基于频率-电压变换器的高精度时钟振荡器
Numerical Investigation of X-Band Dual Frequency High Power RBWO
X波段双频高功率返波振荡器的数值研究
Intracavity Optical Parametric Oscillator High-Repetition-Rate 2μm Laser with 46W Output Power
46W腔内光参量振荡高重复频率2μm激光器
RF oscillator high-voltage supply
射频振荡器型高压电源
The design consideration of high power and high frequency Magnetically insulated Transmission Line Oscillator (MILO) was made.
初步考虑了高频率与高功率的磁绝缘线振荡器的设计问题。
A high weathercock frequency is essential for the stability of the guidance loop.
从制导回路的稳定性角度来看，短周期振荡频率高是基本的。
High power tunable single-frequency 1064 nm quasi-continuous-wave laser oscillator-amplifier system
高功率可调谐1064nm准连续单频激光振荡-放大系统研究
Analysis on Natural Frequencies of Ultra-high Voltage Transmission Lines in Short Circuit Fault
特高压输电线路短路故障时的自由振荡频率分析
RF Oscillator and Mixer Operating on Transistor Characteristic Frequency;
三极管特征频率下射频振荡器和混频器
UHF resonance frequency meter
超高频谐振式频率计
Frequency feature of S-band tapered magnetically insulated transmission line oscillator
S波段锥形磁绝缘线振荡器频率特性
Experimental Study on Characteristics of Self-excited Oscillation Pulsed Water Jet
自激振荡脉冲射流频率特性实验研究