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Q. For a pyramidal-horn antenna, the maximum directive gain is given by
occurring when the aperture dimensions are A ∼ = √3λLandB = 0.81A. The principal-plane beam- widths for the optimum horn with maximum gain are given by θB ∼ = 54λ/B in degrees in the yz- plane, and by φB ∼ = 78λ/A in degrees in the xz- plane. For a pyramidal horn, with A = 6λ and B = 4.86λ, at 6 GHz, ?nd GD, θB, and φB. Comment on whether this horn is optimum.
The Octal Inverter 74LS 240 It is similar to above octal buffer but with inverter output. The logic diagram is shown in figure below . Normal 0
Q Explain about 'Darlington Amplifier'? DARLINGTON AMPLIFIER : A CC stage followed by another CC stage has an input resistance of about (b + 1) 2 times the emitter resistance
Explain briefly the operation, draw the functions, formulas and observations. (i) Write an m-file "imnorm.m" which takes an image finds min and max values and uses them to nor
What is reading mechanism of a 3 phase meter?
Q. How do you calculate the insulation resistance of transformer and what is the minimum value? Ans. The insulation resistance of the transformer will be calculated by using
Write an assembly language program to determine one's complement and two's complement of an 8-bit number. Ans One's complement of an 8-bit number LDA 2501H CMA STA
Q. Determine the function of time for the clock? Given the block diagram for a 4-bit shift-left register shown in Figure (a), draw the output (Q 0 , Q 1 , Q 2 , Q 3 , and data
What is TPA (transient program area)? The memory system is divided in three major parts: transient program area, System is and XMS that is extended memory system.
Switching characteristics When a positive signal is applied GTO starts conducting before initiation of conduction anode current is zero and anode to cathode voltage Va
#The requirement is as follows- There is a signal which is in the range of 0 to 5Hz. This signal frequency composition is to determined. The resolution of the determination is 1Hz.
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