CE722 RF Circuits & Systems

Course Name: 

CE722 RF Circuits & Systems


M.Tech (CE)




Programme Core (PC)

Credits (L-T-P): 



Objective of the course:

At the end of the course the student must be able to:

  • Develop skills in analysis and design of RF circuits
  • Identify the current relevance of RF and Microwave techniques in modern electronics circuit design
  • Design fundamental RF circuits such as impedance matching networks, filters, amplifiers and oscillators
  • Analyze physical interconnect networks implemented in typical planar technologies (microstrips, striplines, etc)
  • Understand the trade-offs in circuit architectures and how they translate to RF systems parameters (e.g. noise figure, IIP3, phase noise, etc)
  • Use simple back-of-the-envelope calculations to predict RF circuits’ performance



Review of Basic Transmission Line Theory, Planar Transmission Lines - Stripline, microstrip line, suspended stripline and coplanar line; Parallel coupled lines in stripline and microstrip - Analysis, design and characteristics. Microwave Network Analysis - Microwave network representation, Impedance and admittance matrices, Scattering parameters, Typical two-port, three port, four port networks; Impedance Matching Techniques - Smith chart, Matching networks using lumped elements, Single and double-stub matching, Quarter wave transformer, Multisection transformers - Binomial and Chebyshev. Basic Passive Components - Lumped elements in MIC, Discontinuities and resonators in microstrip, Balun. Analysis and design of stripline/microstrip components- Directional couplers, Power divider, Hybrid ring. Switches and Phase Shifters-PIN diode- Equivalent circuit and Characteristics, Basic series and shunt switches in microstrip; SPST and SPDT switches, Switched line, branchline coupled and loaded line phase shifters in microstrip. Applications in phased arrays. MIC Filters - Lumped element filter design at RF. Impedance and Low pass scaling, Frequency transformation, High impedance/Low impedance low pass filter, Parallel coupled band pass filter, Spur line band stop filter, Realization in microstrip and suspended stripline Basics of MIC, MMIC and MEMS technologies - Substrated used. Fabrication process. Relative advantages. Examples-Realization of lumped elements and filters in MMIC, Realization of planar transmission lines and filters in MEMS.


D.M. Pozar, Microwave Engineering, 2 Edition, John Wiley & Sons,1998.
Michael Steer, “Microwave and RF Design: A Systems Approach”, First Edition, Yes Dee Publishing Pvt. Ltd. (Original Publishers: SciTech), 2012.
Devendra K. Mishra, “Radio-Frequency and Microwave Communication Circuits: Analysis and Design”, First Edition, Wiley India, 2004.
R. Ludwig and G. Bogdanov, “RF Circuit Design: Theory and Applications”, 2nd Edition, Pearson Education India, 2009.
Behzad Razavi, “RF Microelectronics”, Second Edition, Pearson Education India, 2012.

Contact us

Dr. T. Laxminidhi,  Professor and Head, 
Department of E&C, NITK, Surathkal
P. O. Srinivasnagar,
Mangalore - 575 025 Karnataka, India.

  • Hot line: +91-0824-2473046

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