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  2. Impedance matching - Wikipedia

    en.wikipedia.org/wiki/Impedance_matching

    L networks for narrowband matching a source or load impedance Z to a transmission line with characteristic impedance Z 0. X and B may each be either positive (inductor) or negative (capacitor). If Z/Z 0 is inside the 1+jx circle on the Smith chart (i.e. if Re(Z/Z 0)>1), network (a) can be used; otherwise network (b) can be used. [2]

  3. Smith chart - Wikipedia

    en.wikipedia.org/wiki/Smith_chart

    The Smith chart (sometimes also called Smith diagram, Mizuhashi chart (水橋チャート), Mizuhashi–Smith chart (水橋スミスチャート), [1] [2] [3] Volpert–Smith chart (Диаграмма Вольперта—Смита) [4] [5] or Mizuhashi–Volpert–Smith chart), is a graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio ...

  4. File:L-network Smith charts for all eight configurations, 4-B ...

    en.wikipedia.org/wiki/File:L-network_Smith...

    English: Smith charts for all eight configurations of 'L' type impedance matching network, color coded for schematics shown in companion diagram 'A'. Adapted 2022-08-14 from "L network for wikipedia.png" by user:JRSTANLEY

  5. Scattering parameters - Wikipedia

    en.wikipedia.org/wiki/Scattering_parameters

    The Smith Chart allows simple conversion between the parameter, equivalent to the voltage reflection coefficient and the associated (normalised) impedance (or admittance) 'seen' at that port. The following information must be defined when specifying a set of S-parameters: The frequency

  6. Electrical length - Wikipedia

    en.wikipedia.org/wiki/Electrical_length

    Electrical length is widely used with a graphical aid called the Smith chart to solve transmission line calculations. A Smith chart has a scale around the circumference of the circular chart graduated in wavelengths and degrees, which represents the electrical length of the transmission line from the point of measurement to the source or load.

  7. Smith diagram - Wikipedia

    en.wikipedia.org/wiki/Smith_diagram

    Smith diagram or Smith diagramme may refer to: Smith chart , a diagram by American electrical engineer Phillip Hagar Smith, used in electrical engineering Smith fatigue strength diagram [ de ] , a diagram by British mechanical engineer James Henry Smith [ de ] , used in mechanical engineering

  8. Image impedance - Wikipedia

    en.wikipedia.org/wiki/Image_impedance

    Z i 2 is facing Z i 2 to provide matching impedances Showing how a 'Π' section is made from two cascaded 'L' half-sections. Z i 1 is facing Z i 1 to provide matching impedances. As an example, the derivation of the image impedances of a simple 'L' network is given below. The 'L' network consists of a series impedance, Z, and a shunt admittance, Y.

  9. Quarter-wave impedance transformer - Wikipedia

    en.wikipedia.org/wiki/Quarter-wave_impedance...

    Quarter-wave transformers are illustrated in an impedance Smith chart. Looking towards a load through a length l of lossless transmission line, the normalized impedance changes as l increases, following the blue circle. At l=λ/4, the normalized impedance is reflected about the centre of the chart.