Coming soon
Microwave Electronics-I
This course will enable the students to –
- To make students learn about basics of microwaves, wave guides and field equations.
- To familiarize the students with techniques of generation and propagation of microwaves.
- To acquaint the students with microwave measurement techniques.
Course outcomes (COs):
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Course |
Learning outcomes (at course level) |
Learning and teaching strategies |
Assessment Strategies |
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PAPER CODE |
Paper Title |
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PHY 324(B)
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Microwave Electronics-I (Theory)
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The students will be able to: CO85: analyse rectangular and circular waveguides and derive the field equations for electric and magnetic fields in them. CO86: learn about waveguide resonators and calculate its Q factor. CO87: understand ferrites and its applications CO88: explain and analyse Klystron and its types, magnetrons and travelling wave tubes. CO89: explain the procedures to measure different parameters like VSWR, Impedance, frequency & attenuation, etc. CO90: develop the concept of Complex permittivity of material and compare different methods of measurement of permittivity. |
Approach in teaching: Interactive Lectures, Discussion, Tutorials, , Demonstration, Problem Solving
Learning activities for the students: Self learning assignments, Effective questions, Seminar presentation, Solving numerical. Additional learning through online videos and MOOC courses |
Class test, Semester end examinations, Quiz, Solving problems, Assignments, Presentations |
(a) Rectangular wave guide : Wave equation & its solutions, TE & TM modes. Dominant mode and choice of wave guide dimensions, methods of excitation of waveguides.(b) Circular wave guide : wave equation & it solutions, TE, TM & TEM modes.
(c) Attenuation - Cause of attenuation in wave guides, wall current. & derivation of attenuation constant, Q of the wave guide.
(a) Resonators: Resonant Modes of rectangular and cylindrical cavity resonators, Q of the cavity resonators, Excitation techniques, Introduction to Mircostrip and Dielectric resonators, Frequency meter.
(b) Ferrites: Microwave propagation in ferrites, Faraday rotation, Devices emPSOying Faraday rotation (isolator, Gyrator, Circulator). Introduction to single crystal ferromagnetic resonators, YIG tuned solid state resonators.
Microwave tubes: Space charge spreading of an electron beam, Beam focusing.
Klystrons: Velocity Modulation, Two Cavity Klystron, Reflex Klystron, Efficiency of Klystrons.
Magnetrons: Types & description, theoretical relations between Electric & Magnetic field of oscillations, Modes of oscillations & operating characteristics,
Traveling wave tubes: O & M type traveling wave tubes. Gyrotrons: Constructions of different Gyrotrons, Field - Particle Interaction in Gyrotron.
(a) Microwave Detectors , Power, Frequency, Attenuation, Impedance using smith chart, VSWR, Reflectometer, Directivity Coupling using direction coupler.
(b) Complex permittivity of material & its measurement: definition of complex permittivity, determination of permittivity of solids, liquids and powders using shift in minima method.
- Electromagnetic Waves & Radiating System-Jorden & Balmain.
- Theory and Applications of Microwaves A.B. Brownwell & R.E. Beam (Mc Graw Hill).
- Introduction to Microwave Theory by Atwater (McGraw Hill).
- Principles of Microwave circuits by G.C. Montogmetry (McGraw Hill).
- Microwave Circuits & Passive Devices by M.L. Sisodia adn G.S. Raghuvanshi (Willey Eastern, New Delhi).
- Foundations of Microwave Engineering by R.E. Collin (McGraw Hill).
- Microwave Semiconductor Devices and their Circuit applications by H.A. Watson.
- Microwaves by M.L. Sisodia & Vijay Laxmi Gupta.
- Antenna Theory, Part-I by R.E. Collin & F.J. Zucker (McGraw Hill, New York).
- Microstrip Antennas by Bahl & Bhartiya (Artech House, Messachausetts).
- Antenna Theory Analysis by E.A. Wolff (J.Willey & sons).
- Antenna Theory Analysis by C.A. Balanis Harper & Row, Publ. & Inc. New York.
- Antenna Theory & Design by R.C. Elliott (LPHI Ltd. New Delhi.).
