This document summarizes Ankit Master's final presentation on microwave components. It describes several types of couplers - branchline, Wilkinson, modified Wilkinson, and ratrace couplers. It also discusses the design and measurement results of a gain block, low noise amplifier, and oscillator. Measurements of the S-parameters and other specifications are provided to analyze the performance of each circuit.
3. - Branchline couplers are 3 dB
directional couplers
- The power fed at the input
port is divided equally
between the two output ports.
- However, there is a 90-degree
phase difference in the output
of the two ports
5. S11 S12
S21 S22
Branch line Coupler: Magnitude plots
6. S13 Branch line Coupler: Magnitude plots S31
S12 – S13
Branch line Coupler: Phase plot
7. - It is a n-port network
commonly used for
combining and splitting
power.
- This circuit achieves
isolation at the output
ports while maintaining
matched condition on all
ports.
17. -This is a hybrid coupler
- Like the Quadrature
hybrid, the ratrace coupler
is a 3-dB directional
coupler
-180-degree phase
difference between output
ports
26. -Low Noise amplifier is necessary at the input of a receiver
to amplify the weak received signal with minimium
amplification of noise
-Device used: AT32011
35. - ADS is a very useful and powerful tool for building
circuits
- Reducing the number of parameters during
optimization improves the chances of reaching the
desired goal efficiently
- Selection of a proper device is essential during the
initial stages of the design to avoid complications in the
latter stages of the project
- Tuning is not as convenient as optimization