19EC65C-ANTENNA AND WAVE PROPAGATION-BATCH 2

19EC65C ANTENNA AND WAVE PROPAGATION                         L T P C QP

3 0 0 3 A

COURSE OUTCOMES

Upon completion of this course, the students will be able to

CO1: Explain the various Parameters of antenna- wire antenna.(K2)

CO2: Describe the various types of array antenna (K2)

CO3: Explain the aperture and special antennas for the given specification (K2)

CO4: Design broadband patch antenna and explain various antenna measurement techniques. (K3)

CO5: Explain various radio wave propagation mechanism(K2)

UNIT I ANTENNA FUNDAMENTALS                                                                                  9

Basic properties of transmitting and receiving antenna, Antenna parameters: Radiation pattern, Directivity, Gain, Radiation resistance, Mutual impedance, Input impedance, Polarization, Bandwidth, Beamwidth, Effective aperture, Vector effective length, Antenna temperature. Reciprocity principle and its applications, Friss transmission formula. Wire antennas: Short dipole, Radiation resistance and Directivity, Half wave Dipole, Monopole,Small loop antennas.

UNIT II THEORY OF ARRAY ANTENNAS AND SMART ANTENNAS                             9

Two-element Array, Linear Array and Pattern Multiplication, Uniform Array, Array with nonuniform Excitation - Binomial Array and Yagi-uda arrays. Basic Concepts of Smart Antennas -Beamforming- Fixed weight beamforming - Adaptive beamforming AntennaMIMO antenna- study of 2 X 2 MIMO antenna system

UNIT III APERTURE ANTENNAS AND SPECIAL ANTENNAS                                         9

Aperture Antennas: Babinet's Principle, Slot antenna, Horn Antenna, Pyramidal Horn Antenna, Reflector Antenna-Flat reflector, Corner Reflector, Common curved reflector shapes, Lens Antenna. Special Antennas: Broadband antenna, Frequency independent antenna, log periodic antennas, Helical geometry, transmission radiation modes, practical design considerations, wide band characteristics of helical antenna.

UNIT IV ANTENNAS FOR MODERN AND WIRELESS APPLICATIONS AND ANTENNA MEASUREMENTS                                                                                                                      9

Microstrip Patch Antenna-design of rectangular and circular patch - impedance matching of microstrip antennas, Antenna for Radar systems. Adaptive antenna, RFID antenna, Ultra wideband antenna, Terahertz antenna. Measurements: Radiation Pattern measurement, Gain and Directivity Measurements, Anechoic Chamber.

UNIT V RADIO WAVE PROPAGATION                                                                             9

Ground Wave Propagation - Free-space Propagation - Ground Reflection, Tropospheric Propagation- Ionospheric propagation - Structure of ionosphere, skip distance, Virtual height, Critical frequency, MUF, Electrical properties of ionosphere, Faraday rotation, Whistlers.

L: 45 TOTAL: 45 PERIODS

TEXT BOOKS

1. John D Kraus, Ronald J Marhefka and Ahmad S Khan, “Antennas for all Applications”,Tata McGraw-Hill Book Company, 4th Edition, 2010.

2. K.D Prasad, “Antennas and Wave Propagation”, Satya Prakashan Publications, 2nd Edition, 2008.

REFERENCES

1. Constantine A. Balanis, “Antenna Theory: Analysis and Design”, John Wiley, 3rd Edition, 2005.

2. C.Rowell, E.Y.Lam, “Mobile Phone Antenna Design”, IEEE Antenna & Propagation Magazine, Vol 54, No.4, Pages (14-34), 2012.

3. A.R.Harish, M.Sachidananda, “Antennas and Wave propagation”, Oxford University Press, 1st Edition, 2007.

4. S.R.Saunders, “Antennas and Propagation for Wireless Communication”, 2 nd Edition,John Wiley, 2007.

5. Yi Huang and Kevin Boyle, “Antenna From Theory to Practice”, 1 st Edition, John Wiley,2008.