Q. Consider the following; for a loss-less transmission line we can write,

1. Zin = - jz0 for a shorted line with l = λ/8
2. Zin = ± j ∞ for a shorted line with l = λ/4
3. Zin= jz0 for an open line with l = λ/2
4. Zin = 0 for a matched line of any length

Select the correct answer using the codes given below codes.

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Q. Strip lines are used at

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Q. ∇² is

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Q. End fire array has narrow bandwidth.

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Q. When the height of a vertical earthed antenna is less than λ/4

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Q. Which of the following is a circularly polarized antenna?

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Q. Which of the following is λ/2 length?

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Q. Which of the following is the main difference between waveguide and transmission line?

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Q. Television signals are propagated as ground waves.

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Q. The characteristic impedance of loss less transmission line is

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Q. For a hollow waveguide, the axial current must necessarily be

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Q. In order to receive a vertical polarized wave, the conductor of the dipole should be mounted

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Q. VSWR can have any value between

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