EE5002 | Electrical Engineering

Course Title and Code

RF and Microwave Active Circuits (EE5002)

B.Tech and Post Graduate (Electrical Engineering)

3-0-0-3 (Lecture-Tutorial-Practical-Total Credits)

ERC

Basics in Microwave Engineering

Not Required

The main objective of this course is to teach systematic procedures and different design methodologies of RF active circuits like amplifiers, mixers, and oscillators.
Different fundamental and basic concepts will be taught to develop the skills of designing microwave active circuits.
Various transmitter and receiver architectures will be introduced and discussed.
An overview of three different technologies (MMIC, CMOS, and RF MEMS) will be discussed in terms of advancements in the present state-of-the-art.

Identify different design methodologies for designing small signal amplifiers.
Develop the concept of noise temperature and noise figure to analyze a low noise amplifier circuit.
Develop the basic skills of designing mixers and oscillators.
Understand the use of Smith chart to verify the stability of amplifiers and oscillators.
Identify the usefulness of three different state-of-the-art technologies and their utility in modern-day RF communications.

Fundamental Concepts: Review of microwave passive components like power dividers and couplers that include: Scattering matrix of 3- and 4-port junctions; Design of T-junction and Wilkinson power dividers; Design of 90° and 180° hybrids; Review of impedance matching using Smith chart that includes: resistive matching, LC matching, matching using open/short stubs, RF diode characteristics.
Small Signal Amplifiers: Introductions, Two-port power gains, Stability considerations, Maximum gain amplifier, Designs of specified gain for broadband, Bilateral gain circles, Available power gain circles.
Low Noise Amplifiers: Introductions, Dynamic range and sources of noise, Noise power and equivalent noise temperature, Definition of noise figure, Noise figures in cascaded and two-port networks, Low-noise amplifier design.
Mixers: Introductions, Mixer characteristics, single-ended diode mixer, balanced mixer, Image reject mixer.
Oscillators: Introductions, Oscillation conditions, stability considerations, phase noise, LC oscillators, two-port negative resistance oscillators, Dielectric resonator oscillators.
Conclusion: Transmitter and Receiver Architectures, Overview of MMIC, CMOS, and RF MEMS Technologies, Technology Roadmap.

Microwave Engineering, Pozar, 4th ed., D. M., John Wiley, USA, ISBN-13: 978-0470631553, ISBN-10: 0470631554.
Microwave Transistor Amplifiers Analysis and Design, 2nd ed., Gonzales, G., Prentice-Hall, USA, ISBN: 0-13-581646-7.
T. T. Ha, Microwave Amplifier Design, John Wiley, USA, ISBN-13: 978-0471089711, ISBN-10: 0471089710.