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  2. Scattering parameters - Wikipedia

    en.wikipedia.org/wiki/Scattering_parameters

    The Scattering transfer parameters or T-parameters of a 2-port network are expressed by the T-parameter matrix and are closely related to the corresponding S-parameter matrix. However, unlike S parameters, there is no simple physical means to measure the T parameters in a system, sometimes referred to as Youla waves.

  3. Insertion loss - Wikipedia

    en.wikipedia.org/wiki/Insertion_loss

    Here is one of the scattering parameters. Insertion loss is the extra loss produced by the introduction of the DUT between the 2 reference planes of the measurement. The extra loss can be introduced by intrinsic loss in the DUT and/or mismatch. In case of extra loss the insertion loss is defined to be positive.

  4. Roll-off - Wikipedia

    en.wikipedia.org/wiki/Roll-off

    For some filter classes, such as the Butterworth filter, the insertion loss is still monotonically increasing with frequency and quickly asymptotically converges to a roll-off of 20n dB/decade, but in others, such as the Chebyshev or elliptic filter the roll-off near the cut-off frequency is much faster and elsewhere the response is anything ...

  5. Nicolson–Ross–Weir method - Wikipedia

    en.wikipedia.org/wiki/Nicolson–Ross–Weir_method

    The method uses scattering parameters of a material sample embedded in a waveguide, namely and , to calculate permittivity and permeability data. and correspond to the cumulative reflection and transmission coefficient of the sample that are referenced to the each sample end, respectively: these parameters account for the multiple internal reflections inside the sample, which is considered to ...

  6. Filter (signal processing) - Wikipedia

    en.wikipedia.org/wiki/Filter_(signal_processing)

    Ripple is the variation of the filter's insertion loss in the passband. The order of a filter is the degree of the approximating polynomial and in passive filters corresponds to the number of elements required to build it. Increasing order increases roll-off and brings the filter closer to the ideal response.

  7. A Month of Mediterranean Diet Dinner Recipes to Eat in January

    www.aol.com/month-mediterranean-diet-dinner...

    It’s perfect for busy nights when you want something satisfying, comforting and delicious. Sharp Cheddar cheese adds savory flavor, but another easy-melting cheese like Gruyère or Swiss would ...

  8. 7 signs you might have ADHD and what steps to take - AOL

    www.aol.com/news/7-signs-might-adhd-steps...

    With 15.5 million U.S. adults currently diagnosed with ADHD, there is a growing focus on warning signs of the disorder. Mental health experts share the most common signs and symptoms.

  9. Copper cable certification - Wikipedia

    en.wikipedia.org/wiki/Copper_cable_certification

    Insertion loss, also referred to as attenuation, refers to the loss of signal strength at the far end of a line compared to the signal that was introduced into the line. This loss is due to the electrical resistance of the copper cable , the loss of energy through the cable insulation, and impedance mismatches introduced at the connectors.