查询词典 varactor

The company was founded in 2000 dedicated to various brands of electronic components distribution, Main: ALTERA, Sanyo, Roma, Toshiba, Samsung, Philips, Pu-cheng, KEC, JRC, NEC, ST, OKI , Hetai, Motorola, RATO, AUK various brands of the world, such as in-line, SMD: IC, II, transistor, varactor, sound of tubes, field effect transistor, single bi-directional Thyristor and various photoemission tube to receive first-class components, widely used in car audio, car amplifier, car / home DVD, VCD, CD, MP3, Tuner tuner, LCD displays, and other fields.

本公司成立于二零零零年，致力于经销各种品牌电子元器件，主营：ALTERA ，三洋、罗姆、东芝、三星、飞利浦、普诚、KEC、JRC、NEC、ST、OKI，合泰，摩托罗拉，RATO，AUK等世界品牌的各种直插、贴片：IC、二、三极管、变容管、音响对管、场效应管、单双向可控硅及各种光电发射管、接收头等元器件，广泛应用于汽车音响、汽车功放、车载/家用DVD、VCD、CD、MP3、高频头调谐器、液晶显示器等领域。

The excellent agreements between simulated and measured results prove the accuracy of the established circuit model. Moreover, the varactor was added to the resonator to adjust its resonant frequency. As expected, the reactance introduced by the varactor indeed affects the net inductance and capacitance obviously. It is noted that, not only the shift with the center frequency, the inductive or capacitive of the reactance can also provide a parameter to switch its frequency toward the two directions away from the one without varactor. As a consequence, a wideband tunable band-pass filter is achieved. Although the bad quality factor with the diode strongly increases the insertion loss, this concept was proved to be available for effectively tuning the center frequency of such a class of band-pass filter.

另外，在共振器上的varactor是用来调整共振器的共振频率，如预期的，由varactor所造成的电抗确实的影响到共振器的总电感和电容值，值得一提的是，不仅滤波器的中心频率可以被改变，这电抗是电感性或是电容性也将决定滤波器的中心频率将大於或小於未加varactor时滤波器的中心频率，利用这个结果，我们也实现了一个宽的可调频率带通滤波器，虽然不理想之二极体的Q值增加了滤波器的介入损失，但这原理是被证明可有效的用於调变带通滤波器的中心频率。

The transformation between digital signal and DC voltage was made with D/A converser and high voltage amplifier; varactor s were used for tuning components; the bandpass filter was a combline microstrip line one, its dimension was presented.

采用数模转换器和高压运放实现数字信号与直流电压的转换；以变容二极管作为调谐元件；带通滤波器采用梳状微带线结构，并给出了结构参数。

In this paper,the design principles and methods of the super-abrupt junction GaAs varactor diode has been discussed.

本文详尽地讨论了砷化镓超突变结变容二极管的设计原理和方法。

The resonance tank includes four p-n junction diode varactor pairs and a spiral inductor for each differential VCO, and a voltage- level-shift circuitry is utilized to decide proper DC levels for each pair of varactors.

此共振腔由四对PN接面式可变电容器及一个螺旋型电感所组成，并有一个电位偏移电路用来适当决定每对可变电容之偏压点。

Sales categories: small-signal switching diodes, Short diode, rectifier diode fast recovery diode, varactor diode, stable voltage diodes, transient suppression diodes, PIN junction diode, high-frequency detector diode, rectifier bridges multi-group Product Packaging: SOD-123 SOD-323 SOD-523 SOD-106 DO-214AA DO-214AB DO-214AC SOT-23 SOT-323 SOT-143 SOT-343 Sales Series: 1SS Series 1SV Series 1SR Series BAS Series HVU Series BB Series RB Series RD Series SS Series MMBD Series SMAJ Series SMBJ Series SMCJ Series MBR Series HSMS Series HSMP series ......

销售类别：小信号开关二极管、肖特二极管、整流二极管快恢复二极管、变容二极管、穏压二极管、瞬变抑制二极管、PIN结二极管、高频检波二极管、多层组整流桥等产品封装：SOD-123 SOD-323 SOD-523 SOD-106 DO-214AA DO-214AB DO-214AC SOT-23 SOT-323 SOT-143 SOT-343 销售系列：1SS系列 1SV系列 1SR系列 BAS系列 HVU系列 BB系列 RB系列 RD系列 SS系列 MMBD系列 SMAJ系列 SMBJ系列 SMCJ系列 MBR系列 HSMS系列 HSMP系列。。。。。。

In this paper, the models and parameters of Gunn, varactor and ribbon bond are shown. While simulating the resonant circuits, we finished a microstrip resonance, which has high Q-factor and fits to design W-band low phase noise oscillators.

本文就耿氏管、变容管以及键合引线的模型及参数分别进行了阐述，在对谐振回路进行仿真优化的同时，设计完成了一种适用于研制W频段低相噪平面集成VCO的高Q 微带谐振器

The shock line is a nearly continuous high-impedance transmission line loaded at the same small spacings by reverse biased varactor diodes.

激振线是一个近连续线的高阻抗微带传输线，反偏压的变容二极管以相同的小间隔加载到传输线，输入激励是一个下降沿的负脉冲。

The first capacitor and the second capacitor are designed as a first varactor and as a second varactor, respectively.

第一电容器和第二电容器分别被设计为第一变容二极管和第二变容二极管。

The accumulation -mode varactor, which has a higher quality factor value than the inversion-mode MOS varactor, is studied in detail.

考虑压控振荡器设计指标的相互约束条件，尽可能减小相位噪声的来源，设计电路的拓扑结构。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。