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06000EC303122002

PART C
Answer any two full questions, each carries 20 marks.

A lossless transmission line with Zo=50Q is 30m long and operates at 2 MHz.

The line is terminated with a load 25 60+j40 ೧. If u= 0.60 on the line ,using

Smith chart find:
i) Reflection coefficient ii) The standing wave ratio and iii) input
impedance

Explain the propagation of electromagnetic wave in a rectangular waveguide
Explain single stub matching using analytical method.

In arectangular waveguide for which a=1.5cm, b=0.8cm, 50, ‏ملت‎ and €= ടം

൧, = 2sin cos त्न sin(z = 1011८ - Bz)A/m
a b

Determine i) mode of operation ii) Cut-off frequency iii) Phase constant iv)
Propagation constant v) intrinsic wave impedance

Explain Half Wave and Quarter Wave Transmission lines.

A rectangular waveguide has dimensions 5cm x 2.5cm. Determine the guide
wavelength, phase velocity and phase constant at a wavelength of 4.5cm for
dominant mode.

Explain degenerate modes.

RK

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