Q1 E Consider A Lossless Transmission Line With Zo 50 2 And D 3 M Let Voltage Source Be Vg 60 V And Zg 50 2 Th 1 (35.22 KiB) Viewed 35 times
Q1(e) Consider a lossless transmission line with Zo = 50 2 and d =3 m. Let voltage source be Vg = 60 V and Zg = 50 2. The terminal load is two impedances that are in parallel with ZP = (100+ j100) 2. as shown in Figure Q1(e). The wavelength of the wave in the transmission line is 6 m. Find the input impedance Z; looking at the terminal AA', as shown in Figure Q1(e). d A Z0-50-2 Z₂Zp (10 marks) Z₁- Figure Q1(e)
Q4. A plane wave traveling in a medium with &r1 = 4 is normally incident upon a second medium with &12 = 9. Both media are made of non-magnetic, non-conducting materials. The magnetic field of the incident plane wave is given by H₁ = 4 cos(27×3×10°t-kx) (A/m). (a) Calculate the wave velocity and wave number in medium 1: (3 marks) (b) Calculate the intrinsic impedance of medium 1 and medium 2: (4 marks) (c) Calculate the reflection coefficient and transmission coefficient; (2 marks) (d) Obtain instantaneous expressions for the electric and magnetic fields in medium 1; (10 marks) (e) Determine the average power densities of the incident, reflected and transmitted waves. (6 marks)
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