Transmission lines, such as coaxial lines, strip lines, and two wire lines, typically have two or more conductors. The analysis of transmission lines necessitates the use of electromagnetic theory in order to establish the transmission line parameters. Take a long transmission line, such as a coaxial wire, for example. Several parameters, such as resistance, inductance length of wire, and so on, are required to analyse its properties. Regardless of the actual structure, a segment of uniform transmission line (i.e., a transmission line with constant cross-section over its length) can be modelled. The following are the primary constants: As a result, resistance, inductance, conductance, and capacitance per unit length are sometimes referred to as R, L, G, and C. (Per unit length is sometimes abbreviated as p.u.l.)In the metric system, we utilise ohms per metre (/m), henries per metre (H/m), siemens per metre (S/m), and farads per metre (F/m).This paper builds a frequency-dependent transmission line model to quantify its performance at high frequencies of 10 KHz. Using the given model, the output voltage for the pi-section transmission line is also be compared. Using MATLAB software, a frequency dependent transmission line model is created in the work. The frequency-dependent resistance, reactance, is used to generate the characteristic admittance and propagation function. Radio frequency toolbox is used to apply the calculated values. The transmission line parameters is then be used to create the Universal Line Model (ULM).
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