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likephysics
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Why do reflections occur in transmission lines. Why does the wave travel back from the load?
likephysics said:lalbatros, thanks for the explanation. Optics analogy is great. But how to explain it to ppl who come from circuit background(non-Electromagnetics).
likephysics said:lalbatros, thanks for the explanation. Optics analogy is great. But how to explain it to ppl who come from circuit background(non-Electromagnetics).
Reflections in transmission lines refer to the phenomenon where a portion of the transmitted signal is sent back towards the source due to impedance mismatch or other factors. This can result in interference and signal distortion.
Reflections can cause signal degradation and distortions, resulting in errors and decreased signal strength. This can lead to data loss and communication failures in electronic systems.
Reflections can be caused by impedance mismatches, signal discontinuities, and other factors such as sharp bends or damage to the transmission line. These can all lead to a change in the characteristic impedance of the line, causing reflections.
To minimize reflections, it is important to design transmission lines with proper impedance matching and avoid signal discontinuities. This can be achieved through the use of matching networks, impedance matching components, and proper routing and termination of the transmission line.
Reflections can be measured and analyzed using techniques such as time-domain reflectometry (TDR), vector network analysis (VNA), and spectrum analysis. These methods allow for the detection and characterization of reflections in transmission lines, helping to identify and troubleshoot any issues.