enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Standing wave ratio - Wikipedia

    en.wikipedia.org/wiki/Standing_wave_ratio

    The forward and reflected power measured by directional couplers can be used to calculate SWR. The computations can be done mathematically in analog or digital form or by using graphical methods built into the meter as an additional scale or by reading from the crossing point between two needles on the same meter.

  3. SWR meter - Wikipedia

    en.wikipedia.org/wiki/SWR_meter

    RF power is applied to the circuit. The voltage at the line input represents the vector sum of the forward wave, and the wave reflected from the load. If we know the characteristic impedance of the line is 50 Ohms, we know the magnitude and phase of the forward wave. It's the same wave present on the other side of the detector.

  4. Reflection coefficient - Wikipedia

    en.wikipedia.org/wiki/Reflection_coefficient

    In telecommunications and transmission line theory, the reflection coefficient is the ratio of the complex amplitude of the reflected wave to that of the incident wave. The voltage and current at any point along a transmission line can always be resolved into forward and reflected traveling waves given a specified reference impedance Z 0.

  5. Signal reflection - Wikipedia

    en.wikipedia.org/wiki/Signal_reflection

    Impedance discontinuities cause attenuation, attenuation distortion, standing waves, ringing and other effects because a portion of a transmitted signal will be reflected back to the transmitting device rather than continuing to the receiver, much like an echo. This effect is compounded if multiple discontinuities cause additional portions of ...

  6. Characteristic impedance - Wikipedia

    en.wikipedia.org/wiki/Characteristic_impedance

    The solutions to the long line transmission equations include incident and reflected portions of the voltage and current: = + + = / + / When the line is terminated with its characteristic impedance, the reflected portions of these equations are reduced to 0 and the solutions to the voltage and current along the transmission line are wholly ...

  7. 'Sesame Street' looking for new home after Warner Bros ... - AOL

    www.aol.com/entertainment/sesame-street-looking...

    Warner Bros. Discovery recently announced that it will not renew its streaming deal with Sesame Street to put out new episodes on its streaming service Max, formerly HBO. This leaves the most ...

  8. Reflections of signals on conducting lines - Wikipedia

    en.wikipedia.org/wiki/Reflections_of_signals_on...

    A time-domain reflectometer; an instrument used to locate the position of faults on lines from the time taken for a reflected wave to return from the discontinuity.. A signal travelling along an electrical transmission line will be partly, or wholly, reflected back in the opposite direction when the travelling signal encounters a discontinuity in the characteristic impedance of the line, or if ...

  9. Why Dogs Eat Grass - AOL

    www.aol.com/lifestyle/why-dogs-eat-grass...

    It’s a simple question with a complicated answer. Dogs eat grass all the time, but the reasons why are varied. Technically, eating non-food is known as Pica, a behavior condition associated with ...