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A four-port network has the scattering matrix shown as follows.
(a) Is this network lossless?
(b) Is this network reciprocal? (c) What is the return loss at port 1 when all other ports are terminated with matched loads?
(d) What is the insertion loss and phase delay between ports 2 and 4 when all other ports are terminated with matched loads?
(e) What is the reflection coefficient seen at port 1 if a short circuit is placed at the terminal plane of port 3 and all other ports are terminated with matched loads?
A certain coaxial cables is designed to handle extremely high voltages. In order to prevent dielectric breakdown the electric field (E-field) must be minimized.Calculate the correct value of B to A to minimize the electric field.
For a certain source-free parallel RLC circuit, R=1k-ohm, C=3uF and L is such that the circuit response is overdamped. Write an equation for the voltage across the resistor if it is known that v(0-) = 9V and dv/dt|t=0+= 2 V/s
A 50-KVA, 13,800/208 V ?-Y distribution transformer has an equivalent phase impedance 114.2+j800 ohm referred to the high voltage side. Take the rated voltage as the base voltage and the rated VA as the based voltampere value.
trace how the electrons and holes move through the device under the two different biasing conditions. Explain how these three devices work in terms ofIn a study conducted at the National Institute of Mental Health,
A power supply outputs 25Winto a load. The power supply input voltage is 115V and the inputcurrent is 0.5A. What is the effiecency of the power supply
Discuss what is meant by the transient stability of a power system and what assumptions have you made for this study. Describe the procedure you need to carry out to determine the stability of the system.
You are repairing a guided transmission system made up oftransmitter module, coaxial link and a receiver. The receiver'serror rate has jumped dramatically recently after an electrical storm when several repairs were made to the system.
With the following Boolean equations sketch a Moore Machine J0= Q'0 and y J1= Q2 and y or Q0 and y' J2 = Q1 and Q0 and y' K0 = Q0 and y' K1 =Q'0 and y' or Q'2 and Q0 K2= Q2 and Q'0 Use J-k flip flops for the Moore Machine J and K represent the fli..
The equation y[n] - p y[n-1] = x[n] can be used to describe the value y[n] of a new investment by setting p = 1 + r/100 where r is the interest rate per period, expressed in percent.
How does ambient temperature affect the forward bias voltage of a diode. For some significant enough increase in temperature, how will the voltage across the diode terminals be affected
Otherwise determine where any other states will go. Draw a transition tablebased on the state diagram. Design a combinational logic diagram using only NAND gates in addition to the flip flopsand BCD to seven segment display.
The time taken to download software from the internet is uniformly distributed between four and ten minutes. A. What is the probability that the downloading time for software is more than six minutes B. Prob that time is between five and eight minute..
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