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A pulse radar operates at 2 GHz and has a per-pulse power of 1 kW. If it is to be used to detect a target with σ = 20 m2 at a range of 10 km, what should be the minimum isolation between the transmitter and receiver so that the leakage signal from the transmitter is at least 10 dB below the received signal? Assume an antenna gain of 30 dB.
ECE5434 Test Spring 2016 - Find the Coupling Coefficient between the two channels. Assume that the channels are of the same index - What is the sensitivity of the Vo with respect to the distance between the channels.
A doorbell is connected to a transformer whose primary contains 3000 turns and which is connected to 120V AC. If the doorbell requires 0.2 A at 10 V, find the numbers of turns necessary for the secondary winding and the current that flows in the p..
Consider clear sky conditions for which the direct radiation is incident at ? = 30°, with a total flux (based on an area that is normal to the rays) of q''dir = 1000 W/m2, and the total intensity of the diffuse radiation is 1 dif = 70 W/m2 · sr. W..
If the application program creates a message of 150 bytes and each layer (including the fifth and the first) adds a header of 20 bytes to the data unit, what is the efficiency (the ratio of application layer bytes to the number of bytes transmitte..
If the wire is extruded at a velocity of 10 m/min, determine the rate of heat transfer from the wire to the extrusion room.
A permanent magnet dc motor is delivering zero torque when it runs at 1800 rev/min and has 50 V dc applied to its terminals. The armature resistance is 2.0 ohm. What current will the motor need in order to deliver a torque of 2.0 Nm
What is the magnetic ?ux density at a distance of 0.1 m from a wire that carries a current of 0.35 A?
A straight conducting wire of radius α isparallel to and at height h from the surface of the earth. Assuming that the earth is perfectly conducting, determine the capacitance and the force per unit length between the wire and the earth.
(1) If the frequency was changed, what would happen to the current in a circuit Explain increase or decrease. (2) If you have R = 2 K ohm, Xc = 3 K ohm, XI = 4 K ohm . Find the G, Bc, BI, Yt anf Zt.
The phase margin needs to be at least 45 degrees. The error for a ramp input should be less than 5% Add the lag compensator using bode plots. Show the characteristics (margins) of uncompensated and compensated system to
For a transfer function with a pair of complex zeros located on the j (omega)-axis, what happens to the frequency response as the frequency applied to the system approaches the value at which the zeros are located
An inverting amplifier is configured for a gain of -(6/4) using an opamp that has a 2mV internal offset voltage. (You may consider the opamp ideal otherwise). For what input voltage the output of the amplifier will be zero.
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