查询词典 varactors

Diode switches or voltage controlled varactors implement dual-band resonators such that they can offer low impedance at the second harmonic of each frequency band, while, in some cases, presenting high impedance at the fundamental frequency as an RF choke circuit.

利用二极体开关或电压控制变容器实施双频共振器以提供在双频操作中每一个频段之二阶谐波的低阻抗，同时在一些实施例里也提供主频段的高阻抗、具有射频阻塞电路作用。

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。

The isolation capabilities of varactors with different structures against substrate noise are investigated in this thesis.

本论文主旨在探讨不同结构的变容器对於基体杂讯的隔绝能力。

Accumulation varactors are used to widen frequency tuning.The measured tuning range is 23 percent.

可变电容采用增强型MOS可变电容，取得了23％的频率调节范围。

So we have designed eight varactors on this chip to test the comparison of quality factor of different L, W in the same capacitance.

因此我们在此晶片上设计了八组的可变电容，测试在相同的电容值中，不同长、宽的品质因素之比较。

Accumulation varactors are used to widen frequency tuning.

为了减少高频噪声的影响，采用了在片LC滤波技术。

RF MEMS varactors with Electrostatic actuation have become ahot topic in academic research.

利用静电驱动的RF MEMS压控电容成为了人们研究的一个热点。

In traditional analysis method, the harmonic approximation is employed, and an effective capacitance of varactors during one period is calculated by the large-signal nonlinear analysis.

在传统的谐波平衡近似方法中，通过大信号非线性分析方法可以计算出一个周期内可变电容的有效电容值。

In this dissertation, the nonlinearity of the MOS varactors caused by the large output signal of the DCO, as well as its influence on the performance of the DCO, is analyzed. A back-to-back in series digitally controlled MOS varactor is presented to avoid the nonlinearity of the varactors of the DCO.

对DCO大信号工作时所引起的数控MOS变容管的非线性以及这种非线性对DCO性能的影响进行了分析，提出了改善这种非线性的背靠背串联数控MOS变容管的新结构，可以使DCO的相位噪声最多降低8.1dB。

In this dissertation, the research and design of DCO is conducted and the principal contributions are as follows.In this dissertation, the non-ideal characteristics of traditional MOS varactors used in the DCO are analyzed, and an inversion-mode digitally controlled MOS varactor is proposed to alleviate the non-ideal characteristics. The phase noise of the DCO using inversion-mode varactors can be up to 9.5 dB lower than that of the DCO using traditional MOS varactors.

本论文针对应用于CMOS无线通信收发机的新型全数控LC振荡器，完成了以下工作：分析了DCO所使用的普通数控MOS变容管中所存在的非理想特性，提出了使用反型数控MOS变容管改善这一非理想特性的方法，该方法可以将DCO中的相位噪声最多降低9.5dB。

This is not an ordinary box, which is used as a background picture of the dialog box, very pretty.

详细说明：这可不是一个一般的对话框，它是用图片作为背景的对话框，非常好看。

Conceal me what I am,and be my aid for such disguise as haply shall become the form of my intent.

遮掩我的身份，帮助我，我的面具将成为我的目的。