Course10810572160 lectures
Passive Microwave Circuits, Devices, and Measurements
Prof. Debapratim Ghosh · IIT Bhubaneshwar
About
This course intends to mold good microwave engineers with a skillset that should encompass strong theoretical knowledge, together with practical-oriented knowledge in passive microwave circuits, devices, and measurement techniques. This course will help you find answers to interesting questions, such as (i) how do transmission lines look and behave in practice? (ii) what does it take to match two circuits? (iii) how do we increase bandwidth of passive microwave circuits? (iv) what microwave circuits are used in practical/industry applications? (v) how are microwave measurements different from low frequency measurements? etc. At the end of the course, you should be able to analyse, design, and recognize the importance of various microwave circuits, devices, and measurements for various applications. This course intends to be a foundation for more advanced courses including solid state microwave devices and circuits, and radio frequency integrated circuits.
Intended audience: Final year B.Tech. (ECE/EE) students First year M.Tech. (ECE-related) students First year Ph.D students
Prerequisites: A first course on electromagnetic waves (B.Tech. third year level) is desirable.
Lectures
Week 1
- Lecture 01 : Review of Transmission Line Phenomena
- Lecture 02 : Reflections on Transmission Lines
- Lecture 03 : Impedance Transformation and its Effects on Transmission Lines
- Lecture 04 : Impedance Transformation and Standing Waves on a Transmission Line
Week 2
- Lecture 05 : Foundations of the Smith Chart
- Lecture 06 : Transmission Lines in Practice
- Lecture 07 : Analysis of Transmission Lines in Practice
- Lecture 08 : Transient Behavious of Transmission Lines
- Lecture 09 : Transient Behavious of Transmission Lines (Contd.)
- Lecture 10 : Introduction to Impedance Matching and Quarter Wave Transformer
Week 3
- Lecture 11 : Frequency Reponse of a Quarter Wave Transformer
- Lecture 12 : Transient Analysis, and the Theory of Small Reflections
- Lecture 13 : Increasing the Bandwidth of Quarter Wave Transformers
- Lecture 14 : The Equal Gamma Multi Section Transformer
- Lecture 15 : The Butterworth or Binomial Multi Section Transformer
Week 4
- Lecture 16 : Analyzing the Butterworth Multi Section Transformer
- Lecture 17 : A Recap of RLC Circuits for Microwave Applications
- Lecture 18 : Impedance Matching using RLC Network Transformation
- Lecture 19 : Techniques for Matching Complex Load Impedances
- Lecture 20 : Matching Complex Load Impedances using L Match Networks
Week 5
- Lecture 21 : A General Introduction to Microwave Networks
- Lecture 22 : Introduction to Scattering Parameters in Microwave Networks
- Lecture 23 : Properties of S Parameters
- Lecture 24 : Relationship between S Parameters and Transmission Parameters
- Lecture 25 : An Introduction to Lumped Element Microwave Filters
Week 6
- Lecture 26 : Design of Maximally Flat Lowpass Filters using Lumped Elements
- Lecture 27 : Transformation of Filters for Impedance and Frequency Response
- Lecture 28 : Transformation of Lowpass to Highpass, Bandpass, Bandstop Filters
- Lecture 29 : Realizing Lumped Element Filters using Transmission Lines
- Lecture 30 : Realizing Lumped Element Filters using Transmission Lines (Contd.)
Week 7
- Lecture 31 : Introduction to Three Port Microwave Networks
- Lecture 32 : The Tee Junction Divider
- Lecture 33 : The Concept of Even and Odd Mode Analysis
- Lecture 34 : The Wilkinson Power Divider
- Lecture 35 : Planar Microwave Circulators
Week 8
- Lecture 36 : Introduction to Four Port Networks : Branch Line Hybrid Couplers
- Lecture 37 : Even and Odd Mode Analysis of Branch Line Hybrid Couplers
- Lecture 38 : Calculating the Impedances in a Branch Line Hybrid Coupler
- Lecture 39 : Branch Line Hybrid Couplers with More than Two Branches
- Lecture 40 : The Rat Race Hybrid Coupler
Week 9
- Lecture 41 : Realization of Hybrid Couplers using Lumped Elements
- Lecture 42 : Electromagnetically Coupled Pair of Transmission Lines
- Lecture 43 : Coupled-Line Directional Couplers
- Lecture 44 : Matching and Isolation in a Coupled Line Directional Coupler
- Lecture 45 : Transmission Coefficient and Coupling in Coupled Line Couplers
Week 10
- Lecture 46 : Increasing the Bandwidth of Coupled Line Directional Couplers
- Lecture 47 : Introduction to Semiconductor Devices for Microwave Applications
- Lecture 48 : Diodes for Switching Applications for Microwaves
- Lecture 49 : Diodes for Detection and Rectification at Microwave Frequencies
- Lecture 50 : Diodes for Tuning Operations at Microwave Frequencies
Week 11
- Lecture 51 : Introduction to Microwave Power Measurement Techniques
- Lecture 52 : Microwave Signal Spectrum Measurement - The Spectrum Analyzer
- Lecture 53 : Measurement of S-Parameters using Wave Separation Technique
- Lecture 54 : Measurement of S-Parameters using Wave Separation Technique (cont'd..)
- Lecture 55 : Measurement using Interference Technique - The Six Port Reflectometer
Week 12A
- Lecture 56 : Understanding the Solutions forthe Six Port Reflectometer
- Lecture 57 : Extending the Six PortReflectometer to Two Port Measurements
- Lecture 58 : Introduction to Microwave Simulation Software
- Lecture 59 : Simulated Behaviour of Lumped Element Microwave Filters
- Lecture 60 : Simulated Behaviour of Hybrids and Coupled Line Directional Couplers
Syllabus and materials
At NPTEL, as the course publishes them.
Credits and licence
- Institution
- IIT Bhubaneshwar
- Department
- Electrical Engineering
- Teacher
- Prof. Debapratim Ghosh
- Level
- Graduate
- Language
- English
- Subjects
- Engineering
- Source
- NPTEL
- Licence
- CC BY-NC-SA, as NPTEL states it. Non-commercial use only. NPTEL's terms
- Attribution
- NPTEL states: "Distributed under Creative Commons Attribution-ShareAlike / CC BY - NC - SA", beside a BY-NC-SA badge. Coordinated by IIT Kharagpur.
- Who can watch
- NPTEL gives no rating. Invisible Network shows it to Tweens profiles and older, judged from what the source says about it. How courses are placed
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