1 / 27

Wired Gap Project Presentation: Satellite Signal Boost and Retransmission

This presentation details the third-year project on building a wired gap for satellite signal retransmission in non-covered areas, with a focus on low-cost and efficient methods. The project includes modifications and adaptations of reception modules, amplifiers, and retransmission antennas. Various aspects such as horizontal and vertical polarizations, power supply design, amplifier simulation, and antenna network realization are discussed. The conclusion highlights the benefits of the project, emphasizing low cost, ease of use, and minimal visual impact.

wes
Download Presentation

Wired Gap Project Presentation: Satellite Signal Boost and Retransmission

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Presentation of the 3rdyearproject WIRED GAP CHENAIS Jérémy JARQUE Nicolas FREMONT Sébastien SIMONNET Raphaël

  2. Wired Gap • Introduction • Presentation of the 3 parts • Modifications and adaptation of the module of reception • Amplifier • Retransmission • Conclusion

  3. Introduction • Subject: realisation of a wired gap • Use: retransmission of satellites signals in non-covered areas • Low-cost project

  4. Modifications and adaptation • Use of an existant parabola reception module: • Low cost than creating a new one • Easy to extract signals • Adaptation of this module: • Conception • Simulation

  5. Modifications

  6. Modifications • Horizontal polarization: • Implantation of a transistor to amplify the signal • Add of electric wire to supply power • Extraction of the signal

  7. Modifications • Vertical polarization: • Implantation of a transistor to amplify the signal • Add of electric wire to supply power • Extraction of the signal

  8. Modifications • Output for horizontal and vertical polarization signals

  9. Modifications • Power supply for both of transistors

  10. Adaptation • Necessity to export the signal in 50Ω at the entry of amplifier part: • Conception • Simulation • Realisation

  11. Adaptation - Conception • Adaptation for horizontal polarization: =>Difficulty because very disadapted

  12. Adaptation - Simulation

  13. Adaptation - Conception • Adaptation for vertical polarization: • Easier than horizontal polarization • Smaller circuit than previous

  14. Adaptation - Simulation

  15. - Low noise amplification - Compensation of losses in free space - very low power involved (some pW)‏ Amplifier – Simulation part

  16. Amplifier – Simulation part Gain Return loss

  17. Amplifier – Simulation part Gain Return loss

  18. Amplifier – Simulation part

  19. Amplifier – Conception part • Conception of the mask and the circuit • Test of the transistor at IETR • Analysis of results : • comparisonwiththeory • Calculation of the number of levels • Conception of the amplifier (whenresultswereworthwhile) • Test of the amplifier

  20. Amplifier – Conception part Circuit of the amplifier

  21. Amplifier – Conception part • Final results , three solutions: • Retry with co-planar technology • Modify the position of components • Change of substrate : => drawback: the cost increase

  22. Retransmission antenna • Aim : • To emit (or to broadcast) a signal in the bandwith from 10,7 to 12,7 Ghz • Solution considered first : • Simple patch antenna • Double polarization • Adopted solution : • Patch antenna network • Double polarization

  23. Simple patch antenna • Advantages : • Simplicity of the circuit • Simplicity of adjustments • Speed of simulation • Drawback : • Isotropic antenna

  24. Patch antenna network • Advantage : • Directed radiation diagram • Drawbacks : • Complex circuit • Very heavy simulation

  25. Realization steps • Calibration of the antenna's characteristics (only one patch)‏ • Installation of the network • Simulations and results

  26. Conclusion • Low cost and important gain • Easy to use • No visual pollution

  27. Debate Questions ?

More Related