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An antenna has a radiation pattern function given by
Find the main beam position, the 3 dB beam widths in the principal planes, and the directivity (in dB) for this antenna. What is the polarization of this antenna?
Use the law of Biot and savart to find the magnetic field at the point P(a,-a)in the x-y plane. Then find the magnetic field at the point Q whose coordinates are (2a, -a).
the current flowing through a circuit is it4t3a. how much charge passes through the circuit element between 0 and 2
a. Draw a block diagram of a closed-loop control system. b. Use the block diagram to describe how the system works. c. What is the advantage of this system over an open-loop system
Consider the two-path example d = 2 km and the receiver at 1.5 km from the transmitter moving at velocity 60 km/h away from the transmitter. The carrier frequency is 900 MHz. Plot in MATLAB the magnitudes of the taps of the discrete-time baseb..
The solution to Power Factor, Two single-phase loads are connected in parallel across a 415 V, 50 Hz supply. One load is rated 130 kW at a power factor of 0.75
Design a square wave generator that will provide a 4kHz square wave with a positive peak vlaue of +10V and negative peak value of -10V. You may use any number of op amps, resistors, and capacitors in this design.
Consider a step-down transformer with 15 turns in the primary and 6 turns in the secondary windings.Calculate the input impedance of this transformer loaded to an 8 O resistor, assuming that series resistances of the windings are negligible.
Explain why a row of a matrix A cannot be in its NullSpace.
A beverage can with a diameter of 65 mm and a height of 120 mm has a uniform temperature of 5°C when it is removed from the refrigerator. The can is set on a table in a room with an ambient air temperature of 32°C and a relative humidity of 75%. E..
It is commonly accepted that an intelligent system possesses one or more of the following characteristics and capabilities
Determine the voltage required on the input of the amplifier to give the maximum output of 85 dBuV. If the signal level from the aerial is 5 dBmV and the input noise level is 20 dBuV, calculate the signal-to-noise ratio on the output of the amplifi..
Silicon, originally intrinsic, is doped with 4*10^16 /cm^3 of arsenic atoms at room temperature. a) What proportion of the silicon atoms have been replaced by arsenic atoms b) What is the thermally generated density of electrons and holes
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