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A satellite is 30,000 km from the Earths surface, receives signals at 14 GHz transmitted from the earth with an average power of 50 W, with an antenna gain of 55 dB in the direction of the satellite
An optical fiber is to be used to capture the light signal in a particular experiment. If the core of the fiber has an index of 1.46, and the cladding index is 1.457, what is the maximum angle of in
A FM radio station transmits signals with circular polarization at 100 MHz center frequency. A vertical quaterwave monopole antenna is used in a radio set to receive this signal. If the average powe
A half-wave dipole antenna in a PCS handset at 1.9 GHz, requires a signal strength of 0.01 micro volts per centimeter to operate with acceptable performance. The transmit antenna is assumed to be a
above the azimuth at 900 mHz. Suppose 1 W is supplied to the dipole antenna, neglecting losses
Given the following system of linear equations: x1 + 2x2 + x3 = 4, 12x1 + 16x3 = 28, 8x1 - x2 + 5x3 = 12(a) Write it in the form of Ax = b (b) Find all solutions to the system using Gauss elimination
A circuit contains a known resistance of 2.4 kO, and an unknown inductance. a) When a 12-V battery is connected, what is the current in the circuit a long time after the switch is closed
A four-bit barrel shifter is a combinational circuit with four data inputs, two control inputs, and two data outputs. It allows the data inputs to be shifted onto the outputs by 0, 1, 2, or 3 bit po
Voltage across a .1 micro farad capacitor is : v(t)=25v when t is less than or equal to 0; and v(t)=(Bte^-1000t) + (C(e^-1000)v) when t is greater than or equal to 0 Initial current is 100mA A) what
Two Bit Analog to Digital Converter - MATLAB Let x (t) = 0.8 cos(2*pi*t) + 0.15, 0≤ t ≤ 1, and zero otherwise, be the input to a two bit ADC converter. a.) For a sampling period Ts = 0.025 sec;
Sketch a phase diagram corresponding to each of these cases. Try to make some general statements about the structure of equilibrium as a function of the parameters.
An inverting op amp has Ri = 20 k Ohms, Rf = 500 k Ohms, and Req (resistor between + input terminal and ground) = 19 k Ohms. How much does the offset voltage increase if Req is replaced by a short c
A. What is the reflection coefficient of the load B. If a quarter-wave transformer is inserted between the transmission line and the load, what shall be the characteristic impedance Z0 of this quar
A transmission line with characteristic impedance Z0= 60 ohms is connected to a load impedance ZL= 40-j20 ohms. The wavelength is 8 cm. A. Calculate the load reflection coefficient. B. Calculate the
Assume that at this point when Av*β = 1, phase shift due to the amplifier is 120 degrees. A 0.001 micro farad capacitor is added in parallel with Rf in the feedback circuit. What is the new pha
describe with a numerical example the fundamental reason as to why live streaming video require a heavy usage of bandwidth as compared to live streaming audio. give a numerical example.
A 220 V shunt motor has armature and field resistance of 0.2-ohm and 220-ohm respectively. The motor is driving a constant load torque and running at 1000 rpm drawing 10 A current from the supply.
(Combinational Integer Multiplier) Draw the schematic for a 3-bit com- binational multiplier designed using partial product accumulation. (A,B are 3-bit inputs and S is a 6-bit output.) Use half/ful
The other branch is an inductor with reactance of 8 ohms. If an external load is to be placed across the current phasor source, find the Thevenin source equivalent of the circuit described. Draw the
Construct the straight line Bode plot of the gain. Is this a low-pass, high-pass, bandpass, or bandstop function Estimate the cutoff frequency and the passband gain. Note that s = jw. This problem u
Design a 2nd,4th , and 6th order Butterworth band stop filters with a center frequency at 450 rad/sec and a bandwidth of 100 rad/sec. the final answer should be a ratio of polynomials in descending
Nyquist sampling rate condition and aliasing Consider the signal: X(t) = sin(0.5)/0.5t a.)Find the Fourier transform X(Ω) of x(t). b.)Is x(t) band limited. If so, find its maximum frequency &Ome
Typically, a speech signal that can be understood over a telephone shows frequencies from about 100 Hz to about 5 KHz. What would the sampling frequency fs (samples/ sec) that would be used to sampl
A Silicon wafer has a uniform doping density of 8 xl018 atoms cm-3 of Arsenic and 2.5 x 1019 atoms cm-3 of Phosphorus. Assume that all Arsenic atoms are fully (100%) ionized at room temperature but
a digital channel is described by 16 QAM, the data rate is 50 Mbps, the bandwidth is 200 MHz, the power is 1 W, and the received noise level is 50 mW. Resolve for SNR, Baud Rate and the Max theoreti