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

Textbooks

1. RF Design- Christoper-Text Book 👉 CLICK HERE 

2. David Pozar - 👉 CLICK HERE

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