transmission-line impedance

transmission-line impedance

[tranz′mish·ən ¦līn im‚pēd·əns]
(electricity)
The complex ratio of the voltage across a transmission line to the current flowing in the line, where voltage and current are expressed in phasor notation.
References in periodicals archive ?
Higher-frequency circuits depend on tight control of transmission-line impedance, and a number of factors can contribute to variations in impedance.
For high-frequency applications, it is important that a PCB laminate have well-controlled Dk, as well as tightly controlled thickness, since variations in either will result in variations in transmission-line impedance.
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