Lecture 9: 09-12-2021

Location: D@ta

Time: 13:45 - 15:30

Topics

Design of the signal path of the active antenna

Presentation

The presentation “Design of the signal path of the active antenna” illustrates the design of the signal path of the active antenna using a CS input stage and a push-pull output stage. In order to establish negative feedback, a unity-gain inverting current amplifier (current mirror) is added in the controller.

Downloads

LTspice files and SLiCAP_python files: DualStage.zip

Videos

1. EE4109 2020 12_1: Design of the signal path of the active antenna

2. EE4109 2020 12_2: Design of the input stage of the active antenna

3. EE4109 2020 12_3: Design of the input stage of the active antenna, Simulation Demo

4. EE4109 2020 12_4: Design of the output stage of the active antenna

5. EE4109 2020 12_5: Dual stage signal path design

6. EE4109 2020 12_6: Dual stage signal path design, Simulation Demo

7. EE4109 2020 12_7: Dual stage with current mirror

8. EE4109 2020 12_8: Dual stage with current mirror, Simulation Demo

9. EE4109 2020 12_9: Dual stage with local feedback current mirror

10. EE4109 2020 12_10: Dual stage, Conclusions, Tips and Tricks

Downloads

• Poster Design of the active antenna

Design exercise (group)

Design of the signal path of the active antenna:

• Differential pair input stage

• Class AB push-pull output stage

Amplifier type: integrating transimpedance with brute-force 50Ohm output.

1. Feedback element

2. Input stage, W, L and ID (per transistor)

3. Output stage: W, L (per transistor) and quiescent current

4. Estimation of the achievable bandwidth with this two-stage solution

5. Analysis of the frequency stability