Project of "Guiding electromagnetic systems" course of Master Degree of Embedded Systems (Electronics Engineering) @ Polytecnic of Turin.
Using a circuit board dielectric material with 𝜀𝑟 = 4, ℎ = 2 mm, design a microstrip filter according to the specifications in Table 1. In particular:
- Design the prototype filter and apply the required frequency and impedance transformations (consider both a T and π network).
- Design the filter using the stepped-impedance technique with equal electric length transmission line segments (45°). Please allow a segment of input and output microstrip line for the connection to the connectors.
- Simulate the frequency response of the filter.
- Using AWR, print the GERBER file of both the top and the bottom layers of the microstrip circuit.
- Measure the frequency response of the filter (amplitude of S11 and S21).
| Data | Value |
|---|---|
| Filter type | Low-pass |
| Response type | Equal-ripple (0.5 dB) |
| f1 [GHz] | 2.4 |
| R0 [ohm] | 50 |
| Insertion loss [dB] @ f = 4.8 [GHz] | > 30 dB |