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Microwave Engineering 26 February - 2 March 2018

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engineering

This five day course provides an introduction to the essential principles of microwave engineering. To supplement the theory lectures, there will be invited presentations from industry that will put the theory into the context of current industrial practice. Furthermore practical laboratory demonstrations and also computer based experimental labs will be included at points in the course to aid learning. It is intended that the course should be a stand-alone course that will require only a minimum level of previous RF knowledge though some grounding in mathematics including matrix algebra, parabolic equations and some calculus will be desirable.

 

The topics covered will include:

 

            ·          Microwave transmission lines and waveguides

            ·          Microwave semiconductors

            ·          Microwave amplifiers, antennas and diode circuits

            ·          Dielectrics for microwave planar circuits

            ·          Microwave measurements

            ·          MCMs (Multichip Modules) for microwaves

            ·          MMICs (Monolithic Microwave Integrated Circuits)

Course Code

ME2018

Course Dates

26th February 2018 – 2nd March 2018

Course Leader

Barbara Steel
Course Description

Please note that the University of Surrey reserves the right to update and alter these courses – please check our website for updates

Provisional syllabus:

Microwave Transmission – Dr Tim Brown

Propagation of electromagnetic waves through material including propagation constant, wave number, attenuation constant dielectric constant and loss tangent. Types of transmission lines, phase velocity, group delay, dispersion. Brief overview of Maxwell’s equations, boundary conditions and skin depth.

 

Waveguides I and II – Dr Tim Brown

Principles of propagation in rectangular and circular waveguides. Phase velocity and group delay in waveguides, cut off frequencies. Evanescent modes, waveguide modes. Applications of waveguides.

 

S Parameters and Microwave Components I and II – Dr Tim Brown

Concept of standing waves, definitions of characteristic impedance, reflection coefficient and VSWR, principles of the Smith chart. Definition of S-parameters for n-port networks, concept and uses of modified S-parameters. Planar transmission lines, principles and characteristics of microstrip principles and characteristics of coplanar lines. Examples of devices using microstrip transmission lines.

 

Microwave Semiconductors – Dr Rob Davis

Doping, semiconductor transport, comparison of key semiconductor properties, the p-n junction, band diagrams, the Schottky diode,  MESFET and HEMTs, bipolar transistors,  device characteristics, frequency response and equivalent circuits, Enhancement and Depletion mode FET integration, Bipolar and FET integration. Wideband gap materials and devices: SiC and GaN. Device Limitations: Noise, linearity and dynamic effects.

 

MMICs – Dr Rob Davis

Introduction to Monolithic Microwave Integrated Circuits (MMICs), examples of typical applications, overview of process technology, device modelling, Process Design Kits, designing your components, thermal design, using a foundry, process control and wafer acceptance.

 

Microwave antennas – Dr Tim Brown

Basics of antenna theory: directivity, gain, impedance and effective area. Types of microwave antenna: horn antennas and planar antennas.

 

Microwave Materials – Dr Charles Free

Properties of conductors, chemical polishing and skin effect. Properties of dielectrics, permittivity, propagation parameters and practical materials. Properties of ferrites, tensor permeability, Faraday rotation, ferrites in circulators in planar circuits.

 

PIN Diodes and Phase shifters – Dr Charles Free

Operation of PIN diodes. Control of microwave signals using PIN diodes and FETs, switched and loaded line phase shifters, reflection type phase shifters.

 

Microwave measurements I and II – Nick Ridler

Measurement of: Impedance, Power, Attenuation, Noise / Mismatch corrections / Accuracy and Uncertainty / Vector Network Analyser (VNA) Basics / Cables and Connectors / Calibration Methods / Calibration in Coaxial line / Calibration on-wafer / Extended VNA practical session – calibration; measurement; verification.

 

Microwave Amplifiers – Dr Charles Free

Microwave FETs, relative merits of FETs and BJTs. Device and circuit linearity, harmonic and intermodulation distortion, concept of 3rd order intercept.

 

Magnetrons – Dr Charles Free

Structure and operational principles of the magnetron. HEMT devices.

 

Microwave Diode Oscillators – Dr Charles Free

Impatt and Gunn diode oscillators.

 

Dielectric Measurements – Dr Charles Free

Measurement of permittivity and loss tangent using resonance methods.

 

Advanced Microwave Oscillator Concepts – Prof Mike Underhill

High frequency transistors and oscillator design. Phase noise characteristics.

 

High Frequency MCMs – Quentin Reynolds

Definition of multi-chip modules (MCMs). Advantages, properties and types of MCM. Filter design examples. Assembly techniques, wire bonding and flip chip. Costing issues.

 

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