AN143 - A Simple Method to Accurately Predict
... Any unwanted signals on the power supplies shown in Figure 1 (V_OCXO, V_CP and V_VCO) can translate into spurious (spurs) on the LO signal. Careful design of these supplies greatly reduces or even eliminates these spurs. Charge pump related spurs, however, are inevitable. But, they can be reduced wi ...
... Any unwanted signals on the power supplies shown in Figure 1 (V_OCXO, V_CP and V_VCO) can translate into spurious (spurs) on the LO signal. Careful design of these supplies greatly reduces or even eliminates these spurs. Charge pump related spurs, however, are inevitable. But, they can be reduced wi ...
High-accuracy charge-redistribution SC video bandpass filter in
... This paper reports on the design of a low-power, highdynamic-range recursive SC video bandpass filter (BPF) in a standard digital CMOS process through the use of polymetal1–metal2 sandwich capacitors for the realization of the filter coefficients. The main purpose of the filter to be described is to ...
... This paper reports on the design of a low-power, highdynamic-range recursive SC video bandpass filter (BPF) in a standard digital CMOS process through the use of polymetal1–metal2 sandwich capacitors for the realization of the filter coefficients. The main purpose of the filter to be described is to ...
A 60-GHz Superheterodyne Downconversion Mixer in Silicon
... and CMOS process technologies have made millimeterwave radio circuits possible in silicon [1]–[4]. This has created the possibility of low-cost, highly integrated millimeter-wave radios for a variety of applications, such as wireless data transmission over directed links [5], wireless personal-area ...
... and CMOS process technologies have made millimeterwave radio circuits possible in silicon [1]–[4]. This has created the possibility of low-cost, highly integrated millimeter-wave radios for a variety of applications, such as wireless data transmission over directed links [5], wireless personal-area ...
1st VIRGO-SIGRAV School on Gravitational Waves
... Relations between Sensitivity and Bandwidth Minimum detectable energy is defined by the ratio of wideband noise to narrow band noise Express minimum detectable energy as an effective temperature DEmin 2T ...
... Relations between Sensitivity and Bandwidth Minimum detectable energy is defined by the ratio of wideband noise to narrow band noise Express minimum detectable energy as an effective temperature DEmin 2T ...
2. Quartz Crystal Microbalance
... their robust nature, availability and affordable interface electronics [1]. There are several mechanisms that are related to fluctuation phenomena. Generally, users require minimizing their impact on measurements in order to achieve maximal signal-to-noise ratio. However, fluctuation mechanisms can ...
... their robust nature, availability and affordable interface electronics [1]. There are several mechanisms that are related to fluctuation phenomena. Generally, users require minimizing their impact on measurements in order to achieve maximal signal-to-noise ratio. However, fluctuation mechanisms can ...
Noise Measurement Setup for Quartz Crystal
... obtain corresponding voltage, which excites LED, on the output of the second amplifier. The signals from both oscillators are summed by an amplifier and a diode circuit reduces one half of the output signal. The results are mixing products including the differential components corresponding to the b ...
... obtain corresponding voltage, which excites LED, on the output of the second amplifier. The signals from both oscillators are summed by an amplifier and a diode circuit reduces one half of the output signal. The results are mixing products including the differential components corresponding to the b ...
A New Type of Frequency Chain and Its Application to Fundamental
... ω c = 0. If it becomes possible to build a laser able to produce a stable pulse train of that kind, all the comb frequencies would become exact harmonics of the pulse repetition rate. Obviously, this would be an ideal situation for optical frequency metrology. These examples are instructive, but it ...
... ω c = 0. If it becomes possible to build a laser able to produce a stable pulse train of that kind, all the comb frequencies would become exact harmonics of the pulse repetition rate. Obviously, this would be an ideal situation for optical frequency metrology. These examples are instructive, but it ...
health monitoring of induction motor for vibration analysis
... reciprocating machinery for a condition based maintenance scheduling. The differences between the actual and desired performance behavior allow the operators to predict and identify the problems before they cause the equipment to fail thereby reducing the catastrophic failures and the consequences. ...
... reciprocating machinery for a condition based maintenance scheduling. The differences between the actual and desired performance behavior allow the operators to predict and identify the problems before they cause the equipment to fail thereby reducing the catastrophic failures and the consequences. ...
Dispersion measurements with white-light interferometry
... presumed to be of little use in a modern optics lab where lasers abound. Indeed, if one is to define temporal coherence as the ability of an electric field to interfere with a delayed version of itself, then the light from a helium –neon laser is certainly more coherent than that coming from a light ...
... presumed to be of little use in a modern optics lab where lasers abound. Indeed, if one is to define temporal coherence as the ability of an electric field to interfere with a delayed version of itself, then the light from a helium –neon laser is certainly more coherent than that coming from a light ...
Harnessing and control of optical rogue waves in supercontinuum
... The general features of rogue soliton generation are shown in Fig. 1. Here, Fig. 1(a) superposes the output spectra (gray traces) from an ensemble of 1000 simulations with different noise seeds, as well as the calculated mean (black line). The mean spectrum extends from 925–1240 nm at the −20dB leve ...
... The general features of rogue soliton generation are shown in Fig. 1. Here, Fig. 1(a) superposes the output spectra (gray traces) from an ensemble of 1000 simulations with different noise seeds, as well as the calculated mean (black line). The mean spectrum extends from 925–1240 nm at the −20dB leve ...
Improving ADC Results Through Oversampling and
... First, the sampling rate (T) must be high enough to provide enough samples to adequately represent the input signal. Based on the Nyquist-Shannon Sampling Theorem, the minimum sampling rate must be at least twice the frequency of the highest frequency component in the target signal (Nyquist Frequenc ...
... First, the sampling rate (T) must be high enough to provide enough samples to adequately represent the input signal. Based on the Nyquist-Shannon Sampling Theorem, the minimum sampling rate must be at least twice the frequency of the highest frequency component in the target signal (Nyquist Frequenc ...
Frequency comb generation by CW laser injection
... (MLQDL) are interesting for this application as they have a broad gain bandwidth (> 100 nm) required for short pulse generation [7–11]. Further on-chip integration with an optical amplifier, highly non-linear media for spectral broadening and an f–2f interferometer (for carrier envelope offset frequ ...
... (MLQDL) are interesting for this application as they have a broad gain bandwidth (> 100 nm) required for short pulse generation [7–11]. Further on-chip integration with an optical amplifier, highly non-linear media for spectral broadening and an f–2f interferometer (for carrier envelope offset frequ ...
Laser Doppler Flowmetry - a Theoretical Framework
... In equation 3.1, it can be seen that larger scattering angles will generally give a larger frequency shift, with the largest possible shift for photons reflected straight back against the incoming direction ( = rad). Biological tissue is a turbid medium where photons are multiple scattered. However ...
... In equation 3.1, it can be seen that larger scattering angles will generally give a larger frequency shift, with the largest possible shift for photons reflected straight back against the incoming direction ( = rad). Biological tissue is a turbid medium where photons are multiple scattered. However ...
Spectrum analyzer
A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that a spectrum analyzer measures is electrical, however, spectral compositions of other signals, such as acoustic pressure waves and optical light waves, can be considered through the use of an appropriate transducer. Optical spectrum analyzers also exist, which use direct optical techniques such as a monochromator to make measurements.By analyzing the spectra of electrical signals, dominant frequency, power, distortion, harmonics, bandwidth, and other spectral components of a signal can be observed that are not easily detectable in time domain waveforms. These parameters are useful in the characterization of electronic devices, such as wireless transmitters.The display of a spectrum analyzer has frequency on the horizontal axis and the amplitude displayed on the vertical axis. To the casual observer, a spectrum analyzer looks like an oscilloscope and, in fact, some lab instruments can function either as an oscilloscope or a spectrum analyzer.