Design of a radio system for transmission of information; types of receivers, matching techniques, receiver and antenna noise, types of modulation, high-frequency circuitry, and point-to-point and satellite communications.

4 hours

http://courses.engr.illinois.edu/ece453/

The purpose of this course is to teach senior students in electrical engineering the basic principles of radio-frequency circuit design and to illustrate how such circuits are used in communication systems.

• Receiver systems: modulation schemes; receiver fundamentals; superheterodyne receiver

• Resonant circuits and impedance transformations

• Oscillators: hybrid Pi model for BJT and FET; loop gain analysis; negative resistance analysis

• Impedance matching: L networks, PI and T networks (lossless and attenuating); Smith chart

• High frequency amplifier design: 2 port models - Y, Z, H, S parameters; stability, power gains, simultaneous conjugate matching

• Noise characterization of systems: introduction to thermal noise characteristics; noise characterization of linear 2 ports; sensitivity of receiving system; measurement techniques

• Nonlinear effects: 1 dB compression; two-tone response of nonlinear system, third-order intercepts; dynamic range of receiving system

• Mixers: active mixers; switching type mixers; 4-diode double balanced mixer; conversion loss, nonlinear effects

• Phase-locked loops and applications: FM detection; frequency synthesis

CAD Software (HP Microwave and RF design systems) is used in the laboratory.

vector impedance meter, spectrum analyzer, network analyzer, frequency synthesizers.

credit or concurrent registration in ECE 442; ECE 329

• Network theory

• Fourier series

• Electronic circuits

• Smith chart

Class notes.

Category content as estimated by faculty member who prepared this course description:
Engineering Science: 2 credits or 50%
Engineering Design: 2 credits or 50%