Task 3 Marco Botero Aporte PDF

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Task 3 - Electromagnetic waves in guided media Individual work

MARCO FIDEL BOTERO VARGAS Group 101 1118534655

UNIVERSIDAD NACIONAL ABIERTA Y A DISTANCIA UNAD Escuela de Ciencias Básicas, Tecnología e Ingeniería Teoría Electromagnética y Ondas 2021 16-04

Exercises development Activity Questions: (write with your own words) 1. What do you understand by transmission line? R//The transmission lines are systems formed by two conductors separated by insulation, through which an electromagnetic signal, represented in a potential difference and a current, is sent from a transmitter point to another receiver. A transmission line is a metallic conductor system that is used to transfer electrical energy from one point to another. More specifically, a transmission line is a two or moreconductor separated by an insulator, such as a pair of wires or a system of wire pairs. A transmission line can be as short as a few inches or it can span several thousand miles. Types of Transmission Line on The Basis of Modes: Balanced Transmission Line: A Balanced transmission line is a transmission line consisting of two conductors of the same type, each of which have equal impedances along their lengths and equal impedance to ground and to other circuits. Unbalanced Transmission Line: An unbalanced line is a transmission line; whose conductors have unequal impedance with respect to ground; as opposed to a balanced line. Types of Transmission Line on The Basis of Hardware: ✓ Open-Wire. ✓ Twin-Wire. ✓ Co-axial Cable. ✓ Optical Fiber. ✓ Twisted Wire. ✓ Strip Line. 2. Define the following electrical parameters of transmission lines: a. Input impedance 𝑍𝑖𝑛. R//It is the relationship in bounded transmission lines between the total voltage and the total current

b. Stationary wave ratio 𝑉𝑆𝑊𝑅 R//It is the relationship between the maximum and minimum voltage within the line, the standing wave relationship is infinite when there is total reflection c. Physical length 𝐿 and electrical length 𝓁. R//Physical length: distance between the two points Electrical length: relationship between physical length of line x and wavelength. 3. What is the purpose of Smith's Letter in the study of the propagation of waves? R//It allows obtaining parameters of the transmission lines and solving impedance adaptation problems and avoiding operations with complex numbers, it also allows obtaining parameters such as the transmission coefficient and the standing wave ratio. Application exercises...