What are advantages and disadvantages of loop antennas? Derive an expression for radiation resistance of a loop antenna. 13 2008 6 Mention frequency ranges of operation and applications of loop antenna. 14 2010 4 Calculate power gain of a half wave dipole whose ohmic losses and 15 directive gain are 7Ω and 1.64 respectively. 2008 8 UNIT-II APPEARED IN MARKS S.N0 QUESTION (R05,R07, Assigned R09, R13) Explain working of yagi-uda antenna 1 2009 8 Write a short note on folded dipole. 2 2009 8 What is parasitic element? Where are they used? 3 2011 8 What is yagi-uda antenna? Explain its construction and properties with 4 special reference to directivity, bandwidth and input impedance. 2004 8 Explain folded dipole and their characteristics 5 2011 7 Discuss the types of horn antennas 6 2011 7 Sketch the radiation pattern of helical antenna. 7 2010 8 What are the practical design considerations for mono filar helical antenna in normal mode? 8 2011 8 Discuss the features of corner reflectors. 9 2011 7 Write a short notes on flat sheet and corner reflectors. 10 2011 7 Discuss the characteristics of microstrip antennas 11 2011 7 12
What are advantages and disadvantages of loop antennas? 13 Derive an expression for radiation resistance of a loop antenna. 2008 6 14 Mention frequency ranges of operation and applications of loop antenna. 2010 4 15 Calculate power gain of a half wave dipole whose ohmic losses and directive gain are 7Ω and 1.64 respectively. 2008 8 UNIT-II S.N0 QUESTION APPEARED IN (R05,R07, R09, R13) MARKS Assigned 1 Explain working of yagi-uda antenna 2009 8 2 Write a short note on folded dipole. 2009 8 3 What is parasitic element? Where are they used? 2011 8 4 What is yagi-uda antenna? Explain its construction and properties with special reference to directivity, bandwidth and input impedance. 2004 8 5 Explain folded dipole and their characteristics 2011 7 6 Discuss the types of horn antennas 2011 7 7 Sketch the radiation pattern of helical antenna. 2010 8 8 What are the practical design considerations for mono filar helical antenna in normal mode? 2011 8 9 Discuss the features of corner reflectors. 2011 7 10 Write a short notes on flat sheet and corner reflectors. 2011 7 11 Discuss the characteristics of microstrip antennas 2011 7 12
10216_30072016III_BTECH-ECE-ANTENNAS_&_WAVE_PROPAGATION.docx