EE W242A

Integrated Circuits for Communications

Analysis and design of electronic circuits for communication systems, with an emphasis on integrated circuits for wireless communication systems. Two-port networks are studied in detail, including feedback and stability, S-parameter analysis, and optimal gain and noise performance. Transmission lines, the Smith Chart, and lumped and distributed matching techniques are covered. Analysis of noise and distortion in amplifiers and mixers with application to radio receiver design. Power amplifier design with application to wireless radio transmitters. Radio-frequency mixers, oscillators, phase-locked loops, modulators, and demodulators.

Course objectives: To establish the principles involved in realizing electronic circuit functions for communication applications and to gain design experience in realizing appropriate specifications.

 Estimated Workload: 12 hours/week

EE240A MAS-IC Students Only

Weekly Format:

~3 hrs lecture

~1hr discussion

~8 hrs work

Topics covered:

  • High frequency amplifiers. Analysis of tuned amplifiers, matching networks, and feedback amplifiers. Analysis of optimal gain and matching using 2-port theory.
  • Distortion in amplifiers and its reduction. Harmonic distortion, intermodulation, cross-modulation. Effect of feedback on distortion. Sources of distortion in devices. Modeling.
  • Noise analysis.
  • Power amplifiers. Class A, B, AB and C. Integrated circuit realizations. Cross-over distortion. Efficiency. RF power output stages.
  • Mixers (frequency converters), Bipolar, FET and IC realizations. Conversion gain and spurious response.
  • Oscillator analysis. Amplitude and frequency stability. Waveform distortion. Relaxation oscillators.
  • Analog multipliers and phase-locked loops.
  • AM and FM detectors.

Summer 2014 – Niknejad