Hello There, Guest! Register
Login with Facebook

Anna University April May June 2015 Semester Exams Important Questions and Study Materials
Anna University April/May/June 2015 UG/PG Theory and Practical Exam Timetable
Anna University Question Papers : Nov Dec 2014 and Jan 2015 Question Papers | April May June 2014 Question Papers
Anna University Study Materials for all Departments

Register or Login to Submit Study Materials , Shoutbox and also to access Many Features !!

Don't Destroy your Notes - Sell your Lecture Notes on Vidyarthiplus (V+)

ANTENNA AND WAVE PROPAGATION 2012 Important Questions
#1




Anna University
ANTENNA AND WAVE PROPAGATION 2012 Important Questions


Subject Code :
EC2353
Subject Name : ANTENNA AND WAVE PROPAGATION


Unit 1


1.State and Elaborate Reciprocity Theorem and Explain the various application of reciprocating theorem.
2.State and Derive the wave Equation in terms of electromagnetic potential.
3.Derive the expression for the power radiated by the current element and calculate the radiation resistance.
4.Explain in detail about i) Beam width and HPBW
ii)Polarization
iii) Effective Aperture area
iv)Hertzian Dipole.
5. Obtain the relation between effective aperture and directivity.

Unit 2

1.In a linear array of 4 isotropic elements spaced ¥/2 apart and with equal current fet in phase , plot the radiation pattern.
2.Derive the radiation resistance of a small loop in terms of its circumference.
3. Obtain the expression for the power radiated by a half wave dipole .
4.Derive the field components and rms power radiated from half wave dipole .Calculate the radiation resistance of a half wave dipole.
5.Draw the radiation pattern of array of two point source with equal amplitude and opposite phase by calculating the maximum , minimum and half power points directions.

Unit 3

1.Explain how E-plane type metal plate lens antenna are developed and derive expression for spacing between plates equation of ellipse.
2.Discuss and write in detail about the application of slot , Horn ,Reflector , and Lens Antenna.
3.Derive the expression for the shape of the lens and the reflective index in the case of dielectric lens antenna.
4.Write short notes on pattern properties.

Unit 4

1.What is biconical antenna ?Drive the expression for the radiated fields of a biconical antenna.
2.Describe how the radiation pattern of a given antenna can be measured experimentally.
3.Explain the construction and working principle of Yagi – Uda antenna.
4.With neat sketch , explain the construction and working principle of helical antenna.

Unit 5

1.Drive and expression to calculate the height of the propagating radio wave as a function of distance.
2.Explain how to calculate the grade circle distance between any t points on the Earth.
3.Explain in detail about the modes o propagation.
4.Explain in detail about the skip distance and virtual height.



Possibly Related Threads...
Thread Author Replies Views Last Post
  Important Questions for Integrated Product Development Vidhy Arthi 2 121 12-03-2015, 07:21 PM
Last Post: Aravindhan Manogaran
  Important Questions for Fly by wire Systems Vidhy Arthi 0 118 12-03-2015, 03:28 PM
Last Post: Vidhy Arthi
  GE6351-Environmental science And Engineering Nov Dec 2014 Important Question kavi 4 1,971 04-12-2014, 02:58 PM
Last Post: Aravindhan Manogaran
  GE6251 Basic Civil And Mechanical Engg Nov Dec 2014 Important question kavi 0 661 03-12-2014, 06:47 PM
Last Post: kavi
  AT6032 Mechanics Of Machines Nov Dec 2014 Important Question kavi 0 782 03-12-2014, 04:56 PM
Last Post: kavi
  EC2312-Microprocessor and Microcontroller Nov Dec 2014 Important Question V+ Rajee 0 699 03-12-2014, 11:54 AM
Last Post: Rajee
  EC2304 Microprocessors And Microcontrollers Important Questions - Anand Edition Anandec 1 1,115 30-08-2014, 07:54 AM
Last Post: Srini
  080230069 Cloud computing Important Questions - All Units Srini 0 1,899 03-04-2014, 07:54 AM
Last Post: Srini
  ELECTRIC CIRCUITS AND ELECTRON DEVICES - Two Marks Important Questions Srini 4 5,995 25-01-2014, 09:56 AM
Last Post: pujimani
Thumbs Up ANNA UNIV- BASIC INDUSTRIAL BIOTECHNOLOGY- IMPORTANT 16 MARKS indiainspire 1 1,465 05-12-2013, 01:27 PM
Last Post: Rdx
Reply


Subscribe


Recommend on Google