Design a v antenna with arm length l6lambda at the
Design a V antenna with arm length L=6λ at the frequency 18 MHz , namely find the V angle in degrees , find the beamwidth between nulls. if the frequency changes to 12 MHz , by how many degrees will the peak radiation direction rotate ?
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A 5-element uniform linear array with inter-element spacing of λ/2 is to have maximum radiation in the direction θ=60° , find the current phases , find the directions of null radiation , hence sketch the radiation pattern
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A 53.0-kg person jumps from rest from the top of a 10.0-m-high tower straight down into the water. Determine the magnitude of the average force that the water exerts on the diver
Design a V antenna with arm length L=6λ at the frequency 18 MHz , namely find the V angle in degrees , find the beamwidth between nulls. if the frequency changes to 12 MHz , by how many degrees will the peak radiation direction rotate
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A two-element array made of two λ/2 side by side dipoles with spacing equal to .125 λ , the two elements are fed by currents equal in magnitude but having a phase difference such that : I2=I1 e(j.75π)
A 200-kg roller coaster car travels over the top of a 40-m high hill (Hill A) traveling at 10 m/s. find the speed of the car at the top of the second hill
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