12. The senior engineer gives you the task of determining what would be the shortest length ( in mm ) of a short-circuited 50-Ω ideal ( Єr = 1 ) transmission line needed to represent an impedance.
Zin = j 50 Ω at f = 1.0 GHz.
LSC =--------------------------------------- mm
10. In the lab you are asked to measure an unknown load attached to a ( lossless ) 50-Ω, 0.4 λ long transmission line. You find the component has a voltage reflection coefficient ( magnitude and angle ) at the load = 0.5 ∠140o in a Z0 = 50 Ω system, f = 12 GHz.
SWR = ------------------------------
R.L. = --------------------------------- dB
12. The senior engineer gives you the task of determining what would be the shortest length...
Really appreciate any help. Thank you in advance! 1. Use the Smith chart to find the reflection coefficient corresponding to the load impedance ZL =30−j80Ω. 2. Use the Smith chart to find the impedance corresponding to a reflection coefficient of Γ = ◦ 0.5̸ −45. 3. A transmission line is terminated with a load ZL = 80 + j120 Ω. Use the Smith chart to find (a) the load reflection coefficient, (b) the standing wave ratio, (c) the input impedance...
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)...
If my my Zo is 50 ohms, and my l is 0.12m, could you please show
me how to calculate c. I believe the answer is Zin = 1.78 - j0.75.
Please show all work Thanks!
A loss-free transmission line of characteristic impedance Zo and length / is connected to a load Zl, which consists of the following elements connected in series: Rs = Zo, Ls = 1.0 nH, and Cs = 1.8 pF. The frequency is 3 GHz and...
Please help!
A 75-12 lossless transmission line has l = 0.752. An inductive load, Zl, is terminated where ZL = 75 + 75 12. (a) Find the standing wave ratio S on the line. (b) Find the load reflection coefficient, r(O), and the reflection coefficient seen at input, 7(1). (c) Find the input impedance of the line, Zin, for four different line lengths: 11 = 1/8, 12 = 9/4, 13 = 34/8, and 14 = 1/2, respectively. V(z), 7(z) ZO.B
Can you please sow the work for the highlighted portion of the
question. I have no idea how that is found. Please show all steps.
Thanks
4, A 50 Ω lossless transmission line of 2 ¼ λ long is connected to an AC source, having a phasor voltage V,- 15 V and a terminal impedance of 50 Ω, and a load Z-50 +j 100 Ω. 1) Draw a schematic of this transmission line circuit; 2) Find the power delivered to...
Problem 3-15.
Steady-State Conditions on a Transmission Line ine Che Chap. 3 3-11. A certain telephone cable has the following electrical characteristics: R = 40 /mi L = 1.1 mH/mi G = negligible C = 0.062 F/mi Loading coils are added which provide an additional inductance of 30 m / well as an additional resistance of 8 l/mi. Obtain the attenuation constan phase velocities at frequencies of 300 Hz and 3300 Hz. If the coil spacing is 1/6 at a...
a. A 50 air-filled transmission line is working at 3 MHz on a length of 5.21. The line is terminated with a load impedance of ZĽ = 40 + j25 12. Evaluate: i. VSWR using both Smith Chart and equation. Compare both answers. (CO3: P04 - 3 marks) ii. Reflection coefficient at the load using both Smith Chart and equation. Compare both answers. (CO3: P04 - 3 marks) iii. Input impedance and input admittance using the Smith Chart. (CO3: PO4...
Paper Design only!!
output matehing In this assignment you are to design and implement in ADS two networks: an LC matching network and a microstrip short-circuit stub matching network. These matching networks between a 50 termination and an RF transistor with output impedance ZouT 25 + j50 Thus we require the matching networks transform a 50 2 termination to an impedance of Z, 25-50 at an operating frequency of f 1 GHz, intended to obtain a conjugate match, for maximum...
2. Lumped versus distributed circuits (15%) (a) A transmission line of length 1 connects a load to a sinusoidal voltage source with an oscillation frequency of f. Assuming that the velocity of wave propagation in the line is c (that is, the speed of light in vacuum), for which of the following sit- uations can we model the transmission line as a wire (that is, use a lumped-element model) and where do we need a distributed model? (i) f =...
1) A Hertzian dipole antenna is a short conducting wire carrying an approximately constant current over its length If such a dipole is placed along the z-axis with its midpoint at the origin, and if the current flowing through it is i(t) ż lo cosot, assume I to be sufficiently small so that the observation point is approximately equidistant to all points on the dipole; that is, assume RR then the corresponding magnetic field is described by: olk2 sin e...