3-8. A lossless transmission line is terminated in an open circuit. The sending end is ener gized...
3. The voltage waveform shown below was observed at the sending end of a lossless transmission line in response to a step voltage. If Z = 60 Q and Z. = 50 , calculate a) the generator voltage, V. b) the length of the line, assuming u.-C. c) the load impedance, Z V (0,1) 8 V 5 V 04 us
1) A lossless transmission line that is 3N2 long with an impedance of 75Ω terminated by a load of 25 Ω The generator has a voltage of V,r-2sin(et) V and an internal impedance Ζ'50Ω (a) For this circuit give Vg, T, and the voltage standing wave ratio. (b) Give Vin. Inand Vo (c) Give and I (d) Give the voltage and current at the midpoint of the line (ie. P(z) and I(2) at z-3/4). (e) From the answer of (d)...
Problem 2.25 A lossless transmission line is terminated in a short circuit. How long (in wavelengths) should the line be in order for it to appear as an open circuit at its input terminals? Problem 2.27 A 75-Ω resistive load is preceded by a λ/4 section of a 50-Q lossless line, which itself is preceded by another λ/4 section ofa 100-Q line. What is the input impedance? Problem 2.31 A generator with 300 V and Znected to a load ZL...
A lossless transmission line is terminated with a short circuit at the far end as shown in the figure below. Calculate the input impedance Zin a) at dc; b) when the line islong; c) when the line is long; d) when the line is2 long. e) Based on the previous results, plot the imaginary part of the input impedance as a function of 8 the electrical length of the line. 0 points) 2 7 Zo Zin
Question 4 (a) The input impedance of a lossless air-core transmission line with characteristic impedance Ro. phase constant B and length I terminated in an impedance Z, is given by R,+Z, tan( i. Determine the length of an open circuit 50Ω line required to create a 0.1 nH inductor at a frequency of 10 GHz. (6 marks) ii. Determine the input impedance of the line in part () if the open circuit is changed to a short circuit. (3 marks)...
A lossless transmission line is terminated with a 100Ω load. If the SWR on the line is 1.25, find the two possible values for the characteristic impedance of the line.
kV/phase, 60 Hz, lossless short transmission line has a short-circuit power of 500 MVA/phase. Consider 7. A a unity power factor load connected at the receiving end. Assume that the sending end voltage is equal to the nominal voltage. a. Determine the maximum active power this line can transmit (5 points) b. Determine the reactance of the line (5 points) c. Using basic equations of circuit analysis, show that the magnitude of the receiving end voltage (VR) is approximately 71%...
A lossless transmission line with characteristic impedance of 75Ω measures 1.4λ at a certain working frequency. The line is powered by a generator with negligible impedance and an open circuit voltage of Vg=10∠0° [V]. A load of 50-i50Ω is connected at the end of the line. Find a) The reflection coefficient. b)The stationary wave ratio. c)The input impedance of the line. d)The voltage at the entrance of the line. e)The voltage at the load. f)The average power delivered to the...
For a lossless transmission line extending from 1 = -1 to 1 = 0) with characteristic impedance Zo, and terminated with a load impedance, ZL, find the ratio of the backward to forward voltage wave amplitude, V /V+.
4. A 120- lossless transmission line is terminated in an impedance of-j 60. If the amplitude of the incident-wave voltage at the load is 100 V, calculate the amplitude of the total voltage at the load. Also determine the distance from the load to the first voltage minimum and the amplitude of the ac voltage at this minimum