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Use MATLAB to make the following plots of fields associated with propagating modes in a rectangular waveguide. The dimensions are a=2.3 cm, b=1.0 cm and the frequency is 18 GHz. Assume that the maxi
Consider a causal LTI system defined by the following differential equation d^2y(t)/dt^2 + 2dy(t)/dt = dx(t)/dt + x(t). Find the zero-state response of this system when the input is x(t)=4e^-2t u(t)
Recall that the median is the value in an ordered list of values above and below which there is an equal number of values. The median filter is often employed when one wishes to remove zero-mean add
Consider the causal LTI system with system function H(s)=Y(s)/X(s)=1/(s+2)^2 If the input is x(t)=sin(2t) for t>0, find an approximate expression for the response y(t) that is valid for large t.
A three-phase Y- connected load is rated at 240 volts with power factor .95 (lagging), if the total apparent power is 240 KVA, compute: a. the phase currents (in polar form). There are 3 values. b. t
A three-phase Y- connected transformer bank (single phase) consists of three identical step-up transformers rated at 100MVA, 13.8kV:66.4kV. Each transformer has a series impedance of .0045 + j0.19-o
Two identical CS amplifiers are connected is cascade. First stage is fed with a source Vsig having a resistance Rsig = 100k Ohm. A load resistance Rl = 10k Ohm is connected to the drain of the secon
A CS amplifier utilizes a MOSFET with unCox=400uA/V^2, W/L = 10 and Va = 10V. It is biased at Id = 0.2 mA and uses Rd = 6k Ohm. Find Rin, Avo and Ro. Also, if a load resistance of 10k Ohm is connect
Amplifier with input resistance of 100k Ohm, an open circuit voltage gain of 100 V/V and output resistance of 100k Ohm is connected between a 10k Ohm signal source and 1k Ohm load. Find the overall
A) Design the counter assuming the outputs come directly from JK flip-flops. B) and design the counter assuming a two-stage binary counter is used with the JK flip-flop output decoded
Given two NPN BJTs having β= 100 and ro = 100 Kohm. Using a single 5V dc power supply, design a differential pair amplifier having 1mA bias current in each transistor. What is its maximum gain
The transmitter antenna is to be located on a rooftop at 15 m. The receiver antenna is to be installed at 5 m above ground level. determine the maximum height of a building at the centre of the path
Calculate the received power and the path loss. Assuming this is the maximum acceptable path loss for the system, how does the maximum system range change at 1 GHz and 10 GHz, assuming all other par
A satellite is operated at C-Band (6 GHz in the uplink and 4 GHz in the downlink) for video broadcasting. Calculate the free-space loss experienced at this frequency, if the satellite is in geostati
The speech quality for a particular mobile communication system is just acceptable when the received power at the terminals of the mobile receiver is -104 dBm. Find the maximum acceptable propagatio
A line charge with density 2nC/m exists at y= -2, x=0. Find the electric field intensity at the origin. Now we wish to place a point charge Q=8nC at such a point so that the total electric field is
An npn differential amplifier with I = 0.5 mA, Vcc = VEE = 2.5 V, and Rc = 8 kohm utilizes BJTs with B=100 and VBE=0.7 V at Ic = 1 mA. Assuming that the bias current is obtained by a simple current
The sinusoidal flux in the core of a transformer is given by φ = 0.002 Sin 377t Wb. This flux links a primary winding of 100 turns. Determine the induced voltage in the coil as a function of time
A 75-kVA, 230-V/115-V, 60-Hz was tested with these results: Open-circuit test: 115 V, 16.3 A, 750 W; Short-circuit test: 9.5 V, 326 A, 1200 W Determine the equivalent impedance in high-voltage terms.
Three single-phase transformers, each rated 15 MVA, 13.2:66 kV, with a leakage reactance of 0.1 pu, are connected to form a three-phase Y-Δ bank, one side of which is connected to a 120-kV tra
Consider a uniformly charges cylinder (radius R, height H, charge density ρ). Imagine it at the center of a cube (sides of length L). Calculate the flux of the electric field created by the cyli
A two-winding, single-phase transformer rated 3 kVA, 220:110 V, 60 Hz is connected as an autotransformer to transform a line input voltage of 330 volts to a line output voltage of 110 V and to deliv
One side of the transformer bank is connected to a 120-kV transmission line, and the other side is connected to a three-phase load of 10 MVA at 13.2kV and 0.8 lagging power factor. Using the base in
Given an analog signal x(t) 5cos(2pi*500t), for t>or equals 0. sampled at a rate of 8,000 Hz (a). sketch the spectrum of the original signal; (b). sketch the spectrum of the sampled signal from 0 k
A 5-MVA, 66:13.2kV, three-phase transformer supplies a three-phase resistive load of 4,500kW at 13.2kV. What is the load resistance in ohms as measured from the line-to-neutral on the high-voltage s