MASINDE MULIRO UNIVERSITY OF SCIENCE & TECHNOLOGY
ECE 524E - MICROWAVE ENGINEERING

SENATE APPROVED SYLLABUS

Pre-requisites:

ECE 312 - Electromagnetics I, ECE 322 - Electromagnetics II, MAT 202 - Engineering Mathematics II, ECE 514: Transmission Lines

Course Purpose:

To introduce students to microwave components and circuits in terms of scattering parameters, electrical characteristics of waveguides through electromagnetic field analysis, and basics of microwave amplifiers.
Students are expected to analyse microwave network through application to impedance matching and tuning, design of microwave resonators, passive components, filters, and microwave antennas.

Expected Learning Outcomes:

Upon completion of this course, a student should be able to:

i. discuss the operation of components and devices used in RF & Microwave systems;
ii. describe the principles of design and operation of devices for generation & processing of RF signals at
different power levels;
iii. discuss the applications of RF & microwave systems in communication, control and instrumentation;
vi. discuss recent developments in broadband communications for voice, data and video communication
requirements and their relationship with microwaves;
v. design microwave antenna;
vi. explain the basic structures of RF / microwave transmission lines (microstrip, strip);
vii. identify TEM, TE, and TM waves;

viii. explain operation of rectangular waveguide;
ix. describe the lumped element circuit model for a transmission line;
x. design impedance matching networks for microwave circuits.

Course Content:

Introduction: Components of RF and microwave design, Behaviour of passive components, Propagation of guided waves. Micro-stripline circuits; Evaluation of attenuation constant for the rectangular waveguide.

Waveguides and Components: Review of electromagnetic (EM) spectrum. Rectangular waveguides, Circular Waveguides, Microwave cavities.

Microwave antennas: electromagnetic horns; reflector antennas; micro-strip antennas; phased arrays. Micro Strip Antenna. Directional couplers. Circulators, isolators. Wave guide couplings, bends and twists, Transitions, hybrid couplers, Matched load, Attenuators and phase shifters, Eplane, H-plane and Hybrid Tees, Hybrid ring.

Waveguide discontinuities: Windows, Irises and Tuning screws, Detectors, wave meters. Strip Lines: Microstrip lines. Parallel strip lines. Coplanar strip lines. Shielded strip lines.

Microwave Active circuits: Microwave transistors and tunnel diodes. Microwave FETs. Transferred electron devices: Avalanche transit time devices. Microwave linear beam tubes. Microwave crossed-field tubes. Microwave Communication Systems. Effect of Biological Exposure to microwave radiation.

Microwave tubes: Klystron, Reflex Klystron, Magnetron, TWT, BWO: Their schematic, Principle of operation, performance characteristics and application.

Microwave semiconductor devices: PIN diode, Tunnel diode, LSA diode, varactor diode, Gunn Devices, IMPATT and TRAPATT, their Principal of operation, characteristics and applications.

Microwave Relays: Line-of-site path characteristics, Microwaveradio stations and repeaters.

Mode of Delivery:

Lectures, Class discussions, e-learning and laboratory tests.

Instructional Materials:

Handouts, textbooks, lecture notes, e-materials, Chalkboard, Whiteboard, LCD/Overhead Projector, Computer with simulation software.

Course Assessment:

Continuous Assessment Tests (20%), Practicals 10%, End of semester Examination (70%)

 

Recommended book:

i) Liao, S.Y. Microwave Devices & Circuits, Publisher: Prentice Hall, 3rd ed, ISBN10: 0135832047
(ii) Collin, R.E. Foundations for Microwave Engineering; TMH 2nd Ed. ISBN-10: 0780360311
(iii) Rizzi P. A., Microwave Engineering: Passive Circuits; PHI. ISBN-10: 0135867029
(iv) Pozar D. M., Microwave Engineering, Wiley, 2012. ISBN-10: 0471448788