A question paper of microwave engineering, Papers of Communications Engineering

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No. of Printed Pages : 02 ROI NO, ..cesseseeersseeeeseee 18E21 B. Tech. EXAMINATION, 2022 (Fifth Semester) (C-Scheme) (Main & Re-appear) (ECE) ECE301C MICROWAVE THEORY AND TECHNIQUES lime : 2% Hours] [Maximum Marks : 75 Before answering the question-paper candidates should ensure that they have been supplied to correct and complete question-paper. No complaint, in this regard, will be entertained after the examination. Note 1. (a) (b) 2. (a) (b) 3. (a) (b) 4. (a) (b) : Attempt Kour questions in all. All questions carry equal marks. What is GPS ? How does it work ? Discuss the various microwave frequency band. Derive electric and magnetic field equations in rectangular waveguide for TE modes. Discuss any /hree applications of radar. State the properties of S-parameter. Prove the symmetry property and unitary property of S parameter. What is a cavity resonator ? How are they formed ? Discuss its working. What are Circulators ? Give the schematic diagram of a four port circulator. Give the typical application of a circulator. With the aid of a diagram, explain fully the operation of a 2-hole directional coupler. Also state its uses. (2){J22)M-18E21 1 P.T.O.