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2. Impedance parameters - Wikipedia

   en.wikipedia.org/wiki/Impedance_parameters

   Z-parameters are also known as open-circuit impedance parameters as they are calculated under open circuit conditions. i.e., I x =0, where x=1,2 refer to input and output currents flowing through the ports (of a two-port network in this case) respectively.

3. Characteristic impedance - Wikipedia

   en.wikipedia.org/wiki/Characteristic_impedance

   Applying the transmission line model based on the telegrapher's equations as derived below, [1] [2] the general expression for the characteristic impedance of a transmission line is: = + + where R {\displaystyle R} is the resistance per unit length, considering the two conductors to be in series ,

4. Primary line constants - Wikipedia

   en.wikipedia.org/wiki/Primary_line_constants

   Equivalent circuit of a transmission line for the calculation of Z 0 from the primary line constants The characteristic impedance of a transmission line, Z 0 {\displaystyle \scriptstyle Z_{0}} , is defined as the impedance looking into an infinitely long line.

5. Transmission line - Wikipedia

   en.wikipedia.org/wiki/Transmission_line

   Impedance (Z) parameter may defines by applying a fixed current into one port (I1) of a transmission line with the other port open and measuring the resulting voltage on each port (V1, V2) [8] [9] and computing the impedance parameter Z11 is V1/I1, and the impedance parameter Z12 is V2/I1. Since transmission lines are electrically passive and ...

6. Voltage regulation - Wikipedia

   en.wikipedia.org/wiki/Voltage_regulation

   Here the line impedance Z = R + jωL. The short line approximation ignores capacitance of the transmission line and models the resistance and reactance of the transmission line as a simple series resistor and inductor. This combination has impedance R + jωL or R + jX. There is a single line current I = I S = I R in the

7. 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.