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Write a computer program to solve the dispersion relation V(1-b)^0.5 =mπ+arctan(b/(1-b))+arctan((b+a)/(1-b)). (a) We wish to fabricate a planar waveguide in GaAs (n = 3.6) for light of wavelength λ = 1.3 μm that will operate only in the fundamental mode. Assuming the cover layer is air and the substrate has a refractive index ns = 3.5, what range of the GaAs layer thickness can be? (b) If we want to achieve maximum confinement for the waveguide in (a), what should we choose for the thickness of the GaAs layer? What is the corresponding effective guide index for the light? (Note: You can refer to the figure shown in page 19 of the supplementary slides for maximum confinement, or you can generate the curves and solve for the result yourself. Then use the program you wrote for (a) to solve for the effective guide index.)
A single-phase load is supplied with a sinusoidal voltage v(t) = 200 cos(377t) The resulting instantaneous power isp(t) = 800 + 1000 cos(754t ¡ 36:87±) (a) Find the complex power supplied to the load.
Construct a truth table for the state machine showing all possible states and the logic solution using J-K flip-flops. Construct K-maps for the J-K solutions, identify the minimum logic implementation (circle groups on K-maps), and write equations f..
Develop a voltage-to-current converter that satisfies the requirement I = 0.0021Vin. If the op amp saturation voltage is ±12 V and the maximum current delivery is 5 mA, find the maximum load resistance.
Two dc motors are compared. the first one is a 4hp dc motor which draws a current or 0.7A when the field is connected to a 150V source. the second, a 600 hp motor draws a field current of 5A when the field is connected to a 300V dc source.
An electric flux of 151 Nm2/C passes through a flat horizontal surface that has an area of 0.715 m2. The flux is due to a uniform electric field. What is the magnitude of the electric field if the field points 10.3° above the horizontal
compute the fourier transform of the following signals, using the symbolic manipulator to perform the integrations. Plot the signal x(t) and the magnitude |X(&)| of the fourier transform a) x(t) =2e ^ (-4t) cos (10t) u(t)
Design a one input, one output serial 2's complementer. The circuit accepts a string of bits from the input and generates the2's complement at the output. The circuit can be resetasynchronously to start and end the operation.
The dielectric materials used in real capacitors are not perfect insulators. A resistance called a leakage resistance in parallel with the capacitance can model this imperfection. A 100-~tF capacitor is initially charged to 100V.
Determine the approximate output rating (kVA) required for a portable alternator to be used as temporary supply on a single dwelling construction site. The loads to be supplied include: 1 x 1 kW single-phase capacitor start/capacitor run motor (bri..
A coil of copper wire (ρ=10.37 micro-ohm-CM/ft) hasa length of 182.88 meters. What is the length of aluminum conductor(ρ=17 micro-ohm-CM/ft) of the same area and resistance asthose of copper coil
The noise temperature at the receiver antenna terminals is T0=290K. The equipment and environment suggest that 6dB of margin be used to assure performance under all conditions. For reliable voice communications, a received signal should be 17dB ab..
Derive the state diagram for an FSM that has an input w and an output z. The machine has to generate z = 1 when the previous four values of w were 1001 or 1111; otherwise, z = 0. Overlapping input patterns are allowed.
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