T. Y. B. Sc. Electronic Science

Paper I: Semester IV

Advanced Communication systems

Published by

(For Private Circulation only)

Society for promotion of Excellence in Electronics Discipline

(SPEED)

Acknowledgment

Major problem faced by T. Y. B.Sc. students is availability

of text books and most of them are reference books.

Sometimes books may not be available for the students.

Hence SPEED (Society for Promotion of excellence in

electronics discipline) has taken a step forward to help

these students. SPEED has contributed by online publishing

reference notes for the “Advanced Communication

Systems” for T. Y. B.Sc. Electronic science students. These

notes will really be helping them for understanding the

subject as well as preparation for examination. We are

thankful to Dr. S. N. Khan, Associate professor, Pemraj

Sarda college,Ahmednagar for his major contribution in

preparation of notes. Such contribution from staff members

is really appreciable.

Dr. A. D. Shaligram

Chairman, SPEED

T.Y.B.Sc. Electronic Science Syllabus

From Academic Year 2015-16 Page 17

Paper I: Semester IV

EL-341: Advanced Communication Systems

Unit 1: Antenna & Propagation [14]

Antenna: Basic consideration, Evolution of Dipole antenna, Parameters of Antenna, Effect of ground on Antennas. Resonant Antenna- Radiation patterns & length considerations, Non-Resonant antenna, Directional high frequency antennas, UHF & Microwave antenna, Wide-band & special purpose antennas Propagation of Waves: Ground (Surface waves), sky wave propagation, space waves, Tropospheric scatter propagation.

Unit 2: Modulation & Demodulation [12]

Balanced Modulator- Using diodes & FETs SSBSC- Filter Method, Phase shift method (third method) Synchronous Demodulation, Product Demodulator,

Phase modulation & demodulation using PLL, Indirect method of FM generation. Unit 3: Transmitter & Receiver [12] AM transmitters: Block diagram, FM Transmitters: Using Frequency multiplication & mixing, Frequency stabilized reactance FM transmitter, FM achieved through phase modulation TV transmitter (monochrome/colour) Mobile receiver block diagram (800MHz), Doppler RADAR, Speed Gun, Low noise amplifier block diagram

Unit 4: Digital Communication [10] Pulse modulation, Pulse code modulation, Differential Pulse Code Modulation, Delta modulation, Adaptive delta modulation, Companding, TDM, FDM, Vocoders Block diagram- Digital Communication System

Recommended Books:

1. Electronic Communication By Dennis Roddy & John Coolean, Pearson Education

2. Principles of Communication Systems By Taub Schilling, McGraw Hill.

3. Antenna Theory: Design & Analysis By Balanis, Wiley Eastern

4. Electronic Communication systems By Kennedy & Davis, Tata McGraw Hill