-ohm resistive load and is operated at 100 MHz. At an electrical length of 0.4 wavelengths, what is input
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A 50-ohm lossless transmission line is terminated by a 100-ohm resistive load and is operated at 100 MHz. At an electrical length of 0.4 wavelengths, what is input impedance?
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- A 702 high-frequency lossless line is used at a frequency where 2 = 80cm with a load of 140+j91 2 a. Calculate the reflection coefficient and the SWR b. Determine the distance to the first voltage minimum from the load c. Determine the distance to the first voltage maximum from the load d. Calculate the impedance at the point where maximum voltages occurA coaxial cable is 10 meters long, and is filled with lossless Teflon, having a relative permittivity of 2.1. There is a matched load at the end of the line (this means that there is no reflection at the end, so there is only a signal traveling in the + z direction). At the input of the line, a sawtooth waveform is applied, having a peak voltage of 1.0 [V] and a duration of 1.0 [ns] (the time from the beginning of the waveform until the end). Make a plot (versus time) of what an oscilloscope would read if it were connected to the line at various locations, corresponding to the following values of z: 0.0 [m], 1.0 [m], 5 [m], 10 [m]. Plot out to 50 [ns] 1A 50 ohm lossless transmission line is terminated by a 100-ohm resistive load and is operated at 200MHz. At an electrical length of 1.2 wavelengths, what is the input impedance?
- Question # 01: A piece of RG-59B/U Coaxial cable has a 950 characteristic impedance and a nominal capacitance of 89pF/m. What is the inductance per meter? If the diameter of the inner conductor is 0.654mm, and the dielectric constant of the insulation is 3.23, what is the outer conductor diameter? Assume the line is a lossless line?b. Determine what is the necessary length and characteristic impedance of a cable to be used as a quarter-wave matching transformer so that it can eliminate the standing waves and subsequently provide a matched condition for a 180 O resistive load fed from a 45 0 transmission line. This condition is to exist for a frequency of 95 MHz. Given a velocity factor = 1.0.A piece of RG-59B/U Coaxial cable has a nominal capacitance of 0.9 Farad/meter, and 8 Henry/m inductance per meter. The diameter of the inner conductor as 0.8m, and the dielectric constant of the insulation as 4. Find the diameter of the outer conductor in cm. Assume the line is a lossless line?
- A system has a forward power of 60 W, reflected power of 3 W, and transmission line loss of –3 dB. What will be the observed loss on the ground? A system has a forward power of 200 W and a reflected power of 15 W, what is the return loss?A lossless transmission line has Z₁ = 100 Q, terminated by an unknown impedance. The termination is found to be at a maximum of the voltage standing wave, and the Voltage Standing Wave Ratio (VSWR) is 5. The value of the terminating impedance is2. At a frequency of 4 MHz a parallel wire transmission line has the following parameters: R-0.025 /m, L=2 uH/m, G-0, C-5.56 pF/m. The line is 100 meters long, terminated in a resistance of 300 2 Calculate the following: i. Characteristic impedance of the line. ii. Standing wave ratio. iii. Voltage reflection coefficient of the load. iv. Recalculate the characteristic impedance assuming the transmission line is lossless. V. Calculate the propagation constant of the line B.
- A Transmission line cable consists of 14 identical strands of aluminum, each diameter is 2 mm. The Resistivity of aluminum at 21°C is 2.8 x 10-8 Q-m. Find the resistance per km of the line at 60°C. [Assume skin effect correction factor = 1.02 at 50 Hz frequency and a for aluminum = 0.00429/°c]lossless transmission line has a characteristic impedance of Zo=302, load reflection coefficient is 0.5 .What is the load impedance?A lossless coaxial cable with L = 0.5 uH/ft and C = 100 pF/ft is terminated by a 100-ohm resistive load. What is the characteristic impedance of the quarter-wavelength line that can be used for impedance matching?