Transmission Line Fundamentals - Course Overview
技术概述
Gain a better understanding of transmission lines
Course overview
This course introduces students to the concept of transmission lines, which forms the basis for understanding RF and microwave technology. Students will understand the need for transmission lines and also the complexities involved in dealing with high-frequency systems.
What you will learn
After completing this course, you will be able to:
– Explain the need to enlarge the concept of simple hook-up wires to the more general theory of transmission lines
– Describe the concept of characteristic impedance of a transmission line
– Describe the relationship between characteristic impedance, termination impedance and relections
– Compute VSWR, return loss and relection coeficient and convert among these measures of relection
Specications
Audience
New college graduates, technicians and junior engineers entering the RF and microwave technology ield whose responsibilities include product design, testing or manufacturing
Prerequisites
None
Course length
Half day
Course format
100% lecture
Delivery method
To save you time and travel, this course is delivered at your site.
Detailed course agenda
Transmission line basics
– Why do we need a special class for microwaves?
– What are transmission lines?
– Various wavelengths and their corresponding frequencies
Characteristic impedance
– Transmission lines versus regular hook-ups
– Distance and propagation in a transmission line
– Characteristic impedance
– Basic transmission lines
Terminating a transmission line
– Ininite transmission line
– Terminating a lossless transmission line
– With a short and open
– With its own characteristic impedance
Relections
– Incident and relected waves on a shorted line, an open line and on an arbitrarily terminated lin
– Relection coeficient Impedance and Smith chart
– Gamma plane, plotting impedance
– Plotting impedance on a rectangular plane
– Smith chart
Standing waves
– Understanding phasors
– Phasor representation at an instant for short and open circui transmission lines
– Phasor representation for arbitrary termination
– Slotted line
– Standing wave ratio (SWR), scalar relection coeficient (Rho) and return loss
– Relectometer calculator
– Converting between Rho, return loss and SWR
Practical transmission lines
– Propagating modes
– Common connector and cable types