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The maximum radar cross section of a resonant linear λ / 2 dipole is approximately 0.86λ2 . For a monostatic system (i.e., transmitter and receiver at the same location), find the received power (in W) if the transmitted power is 100 W, the distance of the dipole from the transmitting and receiving antennas is 100 m, the gain of the transmitting and receiving antennas is 15 dB each, and the frequency of operation is 3 GHz. Assume a polarization loss factor is -1 dB.
What is the minimum detection distance, if the radar's sensitivity is 1 nW?
Design a simple unipolar drive circuit such that the electrical time constant is 2 msec at phase turn-on and 1 msec at turnoff. The stepping rate is 300 steps per second. A three-phase variable-reluctance stepper motor has parameters.
The sun is at an altitude of 30 degrees to the horizontal. What is the corresponding air mass What is the physical significance of air mass Mars has a very thin atmosphere containing primarily CO_2 and dust particles.
A spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. The inner sphere has radius 10.0 centimeters, and the separation between the spheres is 1.50 centimeters.
If she is a carrier, then each prince has a 50-50 chance of having hemophilia, independently of the other princes. If the queen is not a carrier, the prince will not have the disease. Suppose the queen has had three princes, each without the disea..
An NMOS differential pair is biased by a current source I = 0.2 mA having an output resistance Rss = 100 K ohm. The amplifier has drain resistances Rd = 10 k ohm. using transistors with k'nW/L = 3 mA/V^2 and ro that is large.
A constant current source of 2 mA is placed across a fully discharged capacitor of 100 F. In the time period before the capacitor reaches breakdown voltage, what is the time rate of change of voltage across the capacitor in V/s
Design a BCD-to-7-segment decoder/driver (code converter) by using two different VHDLs (two projects - one low elvel and one high level) You need to turn in vhdl codes, testbench codes, simulation waveforms
a) both stations begin to transmit at the same time b) one station begins to transmit at the first possible moment such that its transmission would not be detected by the other station before it began its transmission
Consider a gsm uplink.the ms has 100 mw transmit power and the sensitivity of the bs receiver is -105 dbm.the distance between the bs and ma is 500 m.the propagation law follows the free space law up to a distance of dbreak=50m
If a logic circuit with I_OH = 4.5 V is driving and LED with a 330 ohm limiting resistor, what is the current rating for the LED if the forward voltage drop is 1.8 V
A wire has a resistance of 29.7-ohm . It is melted down, and from the same volume of metal a new wire is made that is 4 times longer than the original wire. What is the resistance of the new wire
Model and simulate a 4-to-1 multiplexer using (a) Dataflow Modeling, (b) Behavioral Modeling, and (c) Structural Modeling. Use Modelsim and a VHDL test bench to simulate all the three models for a 4-to-1 multiplexer.
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