Let's consider a rectangular wave guide with dimensions of ? = 1.58 cm and ? =...

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Physics

Let's consider a rectangular wave guide with dimensions of ? =1.58 cm and ? = 0.79 cm, filled with air inside and copperoutside.

a) Calculate the cutoff frequency for the first three advancingmodes. Specify the name of the

dominant (basic) mode.

b) Draw roughly the electric field and magnetic field lines inthe waveguide sections (sections taken from the xy, yz and xzplanes) for the basic mode. For drawing, consider that thewaveguide extends in the z direction, its long edge on the x axisand its short edge on the y axis.

c) When a signal with a frequency of 7 GHz enters thiswaveguide,

explain its behavior by considering its propagationconstant.

d) ? = number of waves (calculate for the frequency of 10GHz.)

e) (?) phase constant (Calculate for the frequency of 10GHz.)

f) (??) wavelength in the guide (Calculate for the frequency of10 GHz.)

g) (??) phase speed (Calculate for the frequency of 10 GHz.)

i) Find the weakening of 1m in Np/m and dB/m. (In the calculations, you can get the surface resistance of the copper element Rs = 0.026(ohm) for 10 GHz.) (Calculate for the frequency of 10 GHz.)

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