This article describes about the Microwave and Optical communications notes. More practice is needed to understand this subject. More Analysis has to be done. I hope this article will guide in preparing of this subject towards your subject.
Microwave and Optical Communications
UNIT I
Microwave Network Analysis
- Equivalent voltages and currents
- even and odd properties of driving point impedance and input reflection coefficient
- Impedance and Admittance matrices for an N-Port network
- Derivation of conditions for reciprocal and lossless networks in terms of impedance and admittance parameters and matrices.
Scattering Parameters and Scattering matrix:
- Scattering matrix in terms of impedance matrix and vice-versa.
- Conditions for reciprocity and loss less ness in terms of S-Parameters and S-matrix.
- Shift in reference plane.
- ABCD parameters of some useful two-port circuits.
UNIT II
Impedance Matching and Filter Implementation
- L Networks-analytic solutions
- smith chart solutions
- Lumped elements for microwave integrated circuits.
- Tapered lines-exponential tapes
- triangular tapes and K loop function tapes.
Filters:
- Design of Insertion loss-based Chebyshev and Butterworth low-pass, high-pass, band pass
- and band-stop filters in terms of normalization filter component values.
- Filter design using Richard's design and implementation, transformation,
- stepped impedance low-pass filters.
UNIT III
Three-Port and Four-Port networks:
- S matrices of general three-port networks and four-port networks.
- Analysis of lossless power dividers and resistive dividers
- Analysis of Wilkinson power dividers
- Single-hole and double-hole directional couplers
- analysis of quadrature hybrid.
UNIT IV
Microwave diodes, Transistors and Tubes (No derivations)
Diodes:
- Operating principle and applications of PIN diodes
- Gunn diode, (No derivations)
Transistors:
- Operating principle and applications of bipolar junction transistors
Tubes:
- Operating principle and applications of Klystrons
- reflex klystrons
- TWTs.
Microwave amplifiers, Oscillators, Mixers and Frequency Multipliers
Amplifiers:
- Single -stage transistor amplifier design for maximum power.
Oscillators:
- Negative resistance-based oscillators,
- Transistor oscillators
- Frequency multipliers Reactive diode multipliers (include Manley-Rowe relations)
Mixers:
- Single ended diode mixers.
UNIT-V
Optical Fiber Transmission Media
- Optical Fiber types - optical fiber ela untundi core , cladding, buffer ala
- Light Propagation - reflection, refraction, total internal reflection, critical angle gurinchi optical cable lo
- Optical fiber Configurations - path mode and index mode ante m ledu single and multi mode inka step index and graded index
- Optical fiber classifications - single mode step index, multimode step index inka multimode graded index
- Losses in Optical Fiber cables - absorption loss, radiation, scattering,dispersion, coupling loss
- Light Sources
- Optical Sources - led gurinchi inka ild gurinchi
- Light Detectors - pin diode inka api diode gurinchi rayali
- LASERS
- WDM Concepts
- Optical Fiber System link budget - Tb lo undi oka block diagram inka losses gurinchi rayali
Notes:
Unit 1 👉 CLICK HERE [ Refer Pozar TB]
Unit 2 👉 CLICK HERE [ Refer Chirstoper TB ]
Unit 3 👉 CLICK HERE [ Refer Pozar Unit 7 ]
Unit 3 TB 👉 CLICK HERE
Unit 4 👉 CLICK HERE
Pin Diode 👉 CLICK HERE
Gun diode 👉 CLICK HERE
Unit 5👉 CLICK HERE
Model Papers Previous Semester 👉 CLICK HERE
Recommendation videos
1. S matrices of general three-port networks and four-port networks
Three-port Network Analysis 👉 CLICK HERE [ Pg No 338 in pozar ]
Four-port Network Analysis 👉 CLICK HERE [ Pg No 340 in pozar ]
2. Analysis of lossless power dividers and resistive dividers
T Junction Power Divider ( lossless divider and Resistive ) 👉 CLICK HERE [ Pg no 344 in pozar ]
3. Analysis of Wilkinson power divider 👉 CLICK HERE [ pg no 348 in pozar ]
4. Analysis of Quadrature Hybrid 90 degree👉 pg no 363 in POZAR
5. Gunn Diode 👉 CLICK HERE
6 . Bipolar Junction Transistor 👉 CLICK HERE
7. Reflex Klystron 👉 CLICK HERE
8. Travelling Wave Tube (TWT) 👉 CLICK HERE
9. Single Stage amplifier design 👉 Pozar book chapter 12 (12.3) pg no 571
10. Negative Resistance Oscillator 👉 CLICK HERE