Advanced Microwave Guided-Structures and Analysis

By Prof. Bratin Ghosh | IIT Kharagpur

Learners enrolled: 655

The course begins with an exposition to a complete characterization of Scattering Matrix Parameters.Thereafter, Maxwell’s Equations in both instantaneous and time-harmonic forms are covered. The treatment is extended to analyze the Power Conservation for both instantaneous and time-harmonic fields. Next, the wave equation in a homogeneous medium and radiated fields from a current source in a homogenous medium is analyzed in terms of vector and scalar magnetic / electric potentials. The phenomenon of reflection and transmission of waves at conducting and dielectric interfaces for normal and oblique incidences is studied. A thorough characterization of the rectangular waveguide follows in terms of modes of propagation, power flow, power dissipation, followed by the treatment of the rectangular resonator. A discussion of the reciprocity concept leads to the evaluation of modes excited by a current source in a waveguide. A treatment of related guided structures including hybrid guides follows. The cylindrical wave function is introduced which is used to analyze propagation characteristics in circular guides and the circular cavity.

INTENDED AUDIENCE : Teachers from Colleges / Institutions / Universities / Research Scholars / Undergraduate and Post-Graduate Students / Industry Professionals

INDUSTRY SUPPORT : ISRO, DRDO, BEL, SAMEER, Astra Microwave, Qualcomm, Intel, Ansys, Wipro, Keysight Technology, Agilent, Anritsu, WiPL-D, Altair Engineering, Mistral Solutions Pvt. Ltd, Verdant Telemetry and Antenna Systems, Data Patterns, Syratron Technologies Pvt Ltd.

Summary

Course Status :	Completed
Course Type :	Core
Language for course content :	English
Duration :	12 weeks
Category :	Electrical, Electronics and Communications Engineering Photonics
Credit Points :	3
Level :	Undergraduate/Postgraduate
Start Date :	26 Jul 2021
End Date :	15 Oct 2021
Enrollment Ends :	09 Aug 2021
Exam Date :	24 Oct 2021 IST

Note: This exam date is subject to change based on seat availability. You can check final exam date on your hall ticket.

Page Visits

Course layout

Week-1: Scattering Matrix Concepts
Week-2: Instantaneous form of Maxwell’s equations : Differential and Integral forms, Generalized Current Concept, Poynting

Vector and Conservation of Power

Week-3: Time Harmonic form of Maxwell’s equations : Poynting Vector and Conservation of Power
Week-4: Wave Equation and Solution, Relation between Wavenumbers in a Homogeneous Medium, Radiation from an Electric Current Source in a Homogeneous Medium

Week-5: Radiation from a Magnetic Current Source in a Homogeneous Medium and its application to the Green's function computation for electromagnetic field problems
Week-6: Rectangular Waveguide I : Solution to the TM to z and TE to z Modes from the z-directed Magnetic and Electric Vector Potentials, Potential Functions in the Rectangular Waveguide, Cut-off Frequency, Dominant Mode, Propagation and Attenuation Constants

Week-7: Rectangular Waveguide II : Characteristic Impedances of TE to z and TM to z Modes, Computation of Power Flow,

Computation of Power Dissipation on Waveguide Walls

Week-8: Rectangular Cavity Resonator : Potential Functions of TM and TE modes for the Cavity, Resonant Frequency, Field Computation in the Cavity, Computation of Stored Energy and Quality Factor.

Week-9: The Reciprocity Theorem, Computation of Amplitudes of Forward and Backward Propagating Waves for Electric and Magnetic Current Sources in the Waveguide
Week-10: Analysis of Guided Structures : Partially-Filled Rectangular Waveguide, Dielectric Slab Guide, Non-Radiating Dielectric Guides
Week-11: Cylindrical Wave Functions, TE and TM modes in Circular Waveguides : Potential Functions in the Circular Waveguide, Cut-off Frequency, Propagation Constant, Circular Cavity
Week-12: Application to the Coupling Problem : Aperture-Coupled, Probe-Coupled and Waveguide Coupled structures.

Books and references

1. “Time-harmonic electromagnetic fields” by Roger F. Harrington

2. ”Microwave Engineering” by David M Pozar
3. “Principles of Electromagnetics” by Matthew N. O. Sadiku

Instructor bio

Prof. Bratin Ghosh

IIT Kharagpur

Prof. Bratin Ghosh received his Bachelors in Electronics and Telecommunication Engineering in 1990 from Jadavpur University, Kolkata, Master of Technology in Electronics and Electrical Communication Engineering with specialization in Microwave Engineering in 1994 from the Indian Institute of Technology, Kharagpur and Ph.D. in Applied Electromagnetics in 2002 from the University of Manitoba, Canada. Thereafter, he completed his postdoctoral from the Royal Military College of Canada. He is currently Professor in the Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur. He is a TPC member and an invited / keynote speaker and chaired sessions in many national and international conferences and seminars. He is also in the review and editorial boards of many international journals. He has been the recipient of many federal project grants in addition to research grants from the industry on the design of efficient antennas and guided systems. He has also organized many short term lectures and workshops in the field of applied electromagnetics that have been well attended by participants from both the academia and industry. He had been the recipient of the National Talent Search Scholarship, the University of Manitoba Graduate Fellowship and is Senior Member, IEEE. He has also been the recipient of many national awards, travel grants and best student paper awards. His areas of research interest are full-wave Green’s function technique for the analysis of cylindrical and spherical multilayer structures, singularity removal techniques, efficient evaluation of Sommerfeld integral tails and leaky and creeping waves in cylindrical structures. He is also actively involved in the design and analysis of efficient horn antenna feeds, metamaterials, dielectric resonator antennas, antenna miniaturization and numerical techniques.

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.

The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).

Date and Time of Exams: 24 October 2021 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.

Registration url: Announcements will be made when the registration form is open for registrations.

The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.

Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.

CRITERIA TO GET A CERTIFICATE

Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.

Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Kharagpur .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team