III B.Tech II Semester Supplementary Examinations, April/May 2005 MICROWAVE ENGINEERING (Electronics & Communication Engineering) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks ????? 1. (a) Draw the applegate diagram of a Reflex Klystron and explain velocity modulation and bunching. (b) Describe the construction of a multicavity Klystron and the coupling techniques to be adopted for more interaction between RF electron beams. 2. (a) How is bunching achieved in a cavity magnetron . Explain the phase focusing effect. (b) Discuss types of magnetrons and list the important applications. 3. (a) Explain how Gunn diode can be used as an amplifier. (b) Distinguish between transit time domain mode and quenched domain modes of operation of a Gunn diode. 4. (a) Explain the physical structure and I−V characteristics of a Tunnel diode. Hence establish its microwave applications. (b) Draw the equivalent circuit of a crystal diode and explain its features. 5. Describe the principles of operation and constructional details for the following type of attenuators: (a) Coaxial attenuator (b) Slab and Flap attenuators 6. (a) What is the magic associated with a magic Tee? Illustrate its applications. (b) Obtain the S-matrix of a wave guide shunt Tee. Comment on the result. 7. With a neat block diagram, explain the method of measurement of the scattering matrix parameters of a E-plane Tee. 8. (a) With a schematic diagram, explain the construction of a micro stripline. (b) Mention the advantages of striplines over other transmission lines. ?????
3.a) Define a page fault. Explain various steps required to bring a desired page? b) Describe the process of segmentation? 4.a) What are the desirable ...
(b) Discuss and analyze about all the allocation strategies in run-time storage environment . 6. ... (a) Define Address Descriptor and Register Descriptor. (b) Why ...
b) Realize hybrid redundancy with triple modular redundancy core. 4.a) With an example explain the practical fault tolerant system? b) How do you enhance the ...
b) Derive an expression for the heat loss per square metre of the surface area for a · furnace wall when the thermal conductivity varies with temperature ...
With a brief note on decision functions, explain in detail about linear decision · functions. 2.a) Write a short note on cluster analysis. b) Explain a cluster-seeking ...
(b) Discuss briefly similarities and differences between FM and AM receivers. (c) Write in detail about the limiter used in FM receiver. 6. (a) Discuss the basic ...
LINEAR DIGITAL I.C. APPLICATIONS. ( Common to Electronics ... (a) Explain the operation of Monostable multivibrator using 555 timer. Derive the expression of ...
Calculate the internal shear flow for the multcell tube system subjected to a torsion of 10,000 N-cm, for 1 mm thick section ... BM of 120 N-m. The trace of the plane of loading is inclined at 450 to the V-V axis of the section. Locate the neutral ax
7. a) What is creep? Explain the effect of temperature and load on creep curves. b) Explain the various atomic mechanisms involved in deformation at high.
Inner radius Ra = 0.15m, outer radius Rb = 0.45m, Magnetic flux density. B0 = 1.2mW b/m2 i. Determine the Hull cut off voltage ii. Determine the cut off magnetic ...
0 (s)Q0(s), with P0(s) and Q0(s) rel- atively left prime and P0(s) row proper. Find the minimal realization. Determine the values of the controllability index and ...
(a) Why steel scrap is added in cupola and to what extent it can be accommodated in the cupola charge. (b) Enumerate the advantages of hot blast cupola over ...
(b) Pixel connectivity. (c) Distance measure. (d) Equivalence of pixels. 6. (a) Write a note on the following: i. image subtraction ii. image averaging. (b) Show that ...
(b) Distinguish between deterministic test pattern generation and probabilistic ... circuit by inserting addition control logic to the following function, obtain the.
(a) Apply the Bresenham's algorithm to turn up pixels along the line segment determined by points (5,7) and (12,11). (b) Give parametric equation of a line ...
error in the reading due to loading effect. 2. (a) Explain in detail the measurement of power using electrodynamometer. (b) Write short notes on watt-hour meter.
