Course Outline

FALL 2008

EE 308 Microwave Engineering Pre-Requisites: wave propagation and antennas

Text Books:

1. Microwave Engineering by David M. POZAR 3^rd Ed.

Reference Books:

1. Fundamentals of Microwave Engineering by Robert E. Collin

2. Microwave Engineering by R. Gowri

Grading Policy: Assignment 10

Quizzes 10

Midterm I, II 15+15

Final Exam 50

Weekly distributed Course Outline

Week 1: Introduction to microwave engineering: Microwave Spectrum, Microwave band designations, Introduction to Microwave circuits: Introduction to PCB, MIC and MMIC. Lumped and Distributed circuit elements: Types of lumped and distributed circuit elements, Rule of thumbs for lumped and distributed elements.

Week 2: Applications of Microwaves: Point to point microwave link, Microwave Repeater stations, Microwave ovens, Microwave Filters, Sources, Mixers, Radar systems (Microwave tubes) and satellite communication. Analysis techniques in Microwave Theory: Review of time varying Maxwell’s Equations, instantaneous and time-harmonic form of Maxwell equations, complex permittivity and permeability, Loss tangent.

Week 3: The Wave Equation and Basic Plane wave solution: The Helmholtz equation, plane wave in lossless medium, plane waves in a general lossy medium, and plane waves in a good conductor. Fields in Media and Boundary Conditions: Fields at General Material interface.

Week 4: Boundary Conditions (contd.) Fields at a dielectric interface, fields at the interface with a perfect conductor (Electric wall), the magnetic Wall Boundary Condition.

Week 5: Mid Term Exam I---------Poynting’s Theorem, Plane wave reflection/transmission at a planar interface: Normal incidence, Oblique incidence (parallel polarization), Reciprocity Theorem, Uniqueness Theorem, Image Theory.

Week 6: Transmission line: General solutions for TEM, TE, and TM waves: TEM waves, TE waves, TM waves, Attenuation due to dielectric Loss, Parallel plate wave guide: TEM, TE and TM modes.

Week 7: Intro to Rectangular waveguide: TE and TM modes, TE_m0 Modes of partially loaded waveguide. Circular Waveguide: TE and TM modes. Coaxial line: TEM modes and higher order modes.

Week 8: Strip line: formulas for propagation constant, characteristic impedance and attenuation. Approximate Electrostatic solution for strip line. Microstrip line: formulas for propagation constant, characteristic impedance and attenuation.

Week 9: Microwave Network analysis: Equivalent voltages and currents, the concept of impedance, Even and odd properties of Z (w) and Γ (w). Impedance and Admittance Matrices: reciprocal networks, lossless networks.

Week 10: The Scattering Matrix: Reciprocal Networks and lossless Networks, A shift in refrencnce planes, Generalized scattering parameters. The transmission (ABCD) Matrix: relation to impedance matrix, equivalent circuits for two-port networks.

Week 11: Signal flow graphs: Decomposition of signal flow graphs, Application of TRL Network Analyzer Calibration. Discontinuities and Modal Analysis: modal analysis of an H-plane step in rectangular waveguide.

Week 12: Excitation of waveguides- Electric and Magnetic currents: Current sheets that excite only one waveguide mode, Mode excitation from an arbitrary electric or magnetic current source.

Week 13: Excitation of waveguide- Aperture coupling: Coupling through an aperture in a transverse waveguide wall, coupling through an aperture in the broad wall of a waveguide.

Week 14: Impedance matching and tuning: Single stub matching, Double stub matching and Quarter wave transformer.

Week 15: Power dividers and Directional couplers: Three port networks (T-Junctions), Four port networks (DC).

Week 16: The T-Junction power divider: lossless divider, Resistive divider. The Wilkinson power divider: Even-odd mode analysis, unequal power division and N-way Wilkinson divider.

Instructor: Waqar Ahmad Malik