Consider a 150 m long air-filled hollow rectangular wave guide with cutoff frequency 6.5 GHz. If a shortpulse of 7.2 GHz is introduced into the input end of theguide, the time taken by the pulse to return the inputend is
Detailed Solution for Test: Waveguides - Question 1
Two identical rectangular waveguide are joined end to end where a = 2b. One guide is air filled and other is filled with a lossless dielectric of εr. it is found that up to a certain frequency single mode operation can be simultaneously ensured in both guide. For this frequency range, the maximum allowable value of εr is
Detailed Solution for Test: Waveguides - Question 19
A parallel-plate guide operates in the TEM mode only over the frequency range 0 < f < 3 GHz. The dielectric between the plates is teflon (εr = 2.1) .The maximum allowable plate separation b is
Detailed Solution for Test: Waveguides - Question 20
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