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ELEC5403_Lab_2

# ELEC5403_Lab_2 - ELEC5403 LAB 2 VSWR Measurements using a...

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1 ELEC5403 LAB 2 VSWR Measurements using a Slotted Line Objectives: To utilize a slotted line setup to demonstrate standing waves due to impedance mismatch. To utilized slotted line measurements to determine the impedance of loads. Equipment: Slotted line RF signal generator Spectrum analyser Cables and Adapters Slotted line terminations Short circuit Open circuit Matched impedance Prelab: 1. Voltage minima on the slotted line are located 20 cm apart. What is the frequency of the signal being used for the slotted line test? 2. For a particular load, the maximum sinusoidal voltage along the slotted line is measured to be 20 millivolts and the minimum sinusoidal voltage is 100 μ Volt. What is the VSWR? What is the magnitude of the reflection coefficient? What is the SWR (in dB)? 3. The 50 slotted line is terminated with a 50 load. The sinusoidal voltage at 10 cm from the load is 100 mV. What is the VSWR? What is the magnitude of the reflection coefficient?

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