RF Circuits      3-0-0-3


  • To impart knowledge on basics of IC design at RF frequencies.



Characteristics of passive IC components at RF frequencies – interconnects, resistors, capacitors, inductors and transformers – Transmission lines. Noise – classical two-port noise theory, noise models for active and passive components


  High  frequency  amplifier  design  –  zeros  as  bandwidth  enhancers,  shunt-series  amplifier,  f doublers neutralization and unilateralization.

Low noise amplifier design – LNA topologies, power constrained noise optimization, linearity and large signal performance

Mixers – multiplier-based mixers, subsampling mixers, diode-ring mixers

RF power amplifiers – Class A, AB, B, C, D, E and F amplifiers, modulation of power amplifiers, linearity considerations

Oscillators & synthesizers – describing functions, resonators, negative resistance oscillators, synthesis with static moduli, synthesis with dithering moduli, combination synthesizers – phase noise considerations.


Text Books

1.   T.homas H. Lee, “The Design of CMOS Radio-Frequency Integrated Circuits”, 2nd ed., Cambridge, UK: Cambridge University Press, 2004.

2.   B.Razavi, “RF Microelectronics”,2nd Ed., Prentice Hall, 1998.


Reference Books

1.   A.A. Abidi, P.R. Gray, and R.G. Meyer, eds., “Integrated Circuits for Wireless Communications”, New York: IEEE Press, 1999.

2.   R. Ludwig and P. Bretchko, “RF Circuit Design, Theory and Applications”, Pearson, 2000.

3.   Mattuck,A., “Introduction to Analysis”, Prentice-Hall,1998.



Students are able to

CO1: understand the Noise models for passive components and noise theory

CO2: analyse the design of a high frequency amplifier

CO3: appreciate the different LNA topologies & design techniques

CO4: distinguish between different types of mixers

       CO5: analyse the various types of synthesizers, oscillators and their characteristics.