low-pass filter
... Let‘s apply a voltage Vin of a very low frequency and of an amplitude of 10V to the input of the circuit in the figure. If we let the frequency become lower and lower, the input voltage will become a DC voltage. This input voltage Vin of 10V will charge the capacitor and in a moment the output volta ...
... Let‘s apply a voltage Vin of a very low frequency and of an amplitude of 10V to the input of the circuit in the figure. If we let the frequency become lower and lower, the input voltage will become a DC voltage. This input voltage Vin of 10V will charge the capacitor and in a moment the output volta ...
Thermal Noise Introduction
... One might naively believe that if all sources of electrical power are removed from a circuit that there will be no voltage across any of the components, a resistor for example. On average this is correct but a close look at the rms voltage would reveal that a "noise" voltage is present. This intrins ...
... One might naively believe that if all sources of electrical power are removed from a circuit that there will be no voltage across any of the components, a resistor for example. On average this is correct but a close look at the rms voltage would reveal that a "noise" voltage is present. This intrins ...
A Low Noise Amplifier for Phase Noise Measurements
... in the presence high level close-in noise. A fairly high frequency high pass response is also useful when observing “jumpy” oscillators on an oscilloscope. A high-pass rolloff at 2.5 Hz is also recommended since many phase noise measurements only extend down to 10 Hz and the high-pass will reduce th ...
... in the presence high level close-in noise. A fairly high frequency high pass response is also useful when observing “jumpy” oscillators on an oscilloscope. A high-pass rolloff at 2.5 Hz is also recommended since many phase noise measurements only extend down to 10 Hz and the high-pass will reduce th ...
ellip
... The table below lists the refractive index n* = n - i k for different materials as well as the minimum or maximum angle of the analyzer and the half wavelength thickness when using a He/Ne laser and an incident angle of 70 degrees. The refractive indices from this table can be used to generate the Y ...
... The table below lists the refractive index n* = n - i k for different materials as well as the minimum or maximum angle of the analyzer and the half wavelength thickness when using a He/Ne laser and an incident angle of 70 degrees. The refractive indices from this table can be used to generate the Y ...
Sources and detectors in the microwave region
... control the output frequency. In EPR studies the X band region ( ) is the most common because it is commercially available (magnetic fields up to 1 T are highly suitable, cause they can be easily achieved with electromagnets). Thus the second group of sources in Table 2 is a matter of interest. One ...
... control the output frequency. In EPR studies the X band region ( ) is the most common because it is commercially available (magnetic fields up to 1 T are highly suitable, cause they can be easily achieved with electromagnets). Thus the second group of sources in Table 2 is a matter of interest. One ...
Digital Representation of Audio Information
... an optimal filter for this type. Hand in commented code and a clearly labeled plot, and the requested descriptions. B) Apply a Wiener filter to the data in vector sigpnos which is a combination of the signal and noise from the same source as the examples. Note that you do not know the SNR for this c ...
... an optimal filter for this type. Hand in commented code and a clearly labeled plot, and the requested descriptions. B) Apply a Wiener filter to the data in vector sigpnos which is a combination of the signal and noise from the same source as the examples. Note that you do not know the SNR for this c ...
MAX9982EV Kit - Maxim Integrated
... the on-chip and evaluation board capacitance at the IF frequency of interest along with providing a low resistance path for biasing of the IF amplifier. R3 and R4 provide a real impedance used to establish the 200Ω differential impedance. C9 and C10 provide DC blocking along with adding in the flexi ...
... the on-chip and evaluation board capacitance at the IF frequency of interest along with providing a low resistance path for biasing of the IF amplifier. R3 and R4 provide a real impedance used to establish the 200Ω differential impedance. C9 and C10 provide DC blocking along with adding in the flexi ...
Waveguide-based single-shot temporal cross-correlator
... 1548 nm. Decoding of the output is done by measuring the wavelength of the peak intensity in the idler spectrum. The peaks in the spectra are displaced by 5.7 nm which is close to the calculated result of 5.5 nm. We attribute the discrepancy between the calculated idler spectrum shift and the measur ...
... 1548 nm. Decoding of the output is done by measuring the wavelength of the peak intensity in the idler spectrum. The peaks in the spectra are displaced by 5.7 nm which is close to the calculated result of 5.5 nm. We attribute the discrepancy between the calculated idler spectrum shift and the measur ...
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.