Multi-feed reconfigurable antenna system using bio-sourced substrate for the sub-7 GHz 5G and beyond
Published : 21 April 2023
Multi-feed reconfigurable antenna system using bio-sourced
substrate for the sub-7 GHz 5G and beyond
Context and objective:
The ICT sector contributed to about 3% of the worldwide CO2 emissions and this percentage is increasing with the increase in communication needs . To meet the requirements of a high data rate communication system as well as low environmental impact, the PERSEUS project has been initiated in the frame of the PEPR-5G program.
This project aims at developing the sub-7 GHz (700 MHz – 7 GHz) for an energy-efficient and eco-friendly system.
Several approaches could be considered to reach this objective including the well-known 3Rs: “reduce, reuse, and recycle”. The bio-sourced materials  (e.g., paper –, nano-cellulose conductive ink , plant-derived PLA (polylactic acid) ) could be used to reduce the need for fossil and rare resources. At the end of the life cycle, the bio-sourced materials could be recycled or decomposed to reduce the environmental impacts. The reconfigurable or modular systems could also be considered for sustainable electronics.
In this context, the DHREAMS team from the IMEP-LaHC laboratory (UMR 5130) aims at developing a multi-feed reconfigurable antenna system using bio-sourced substrate.
The multi-feed allows at the same time the modification of incident signal to change the antenna behaviors (frequency and radiation) and the integration of distributed amplifiers to increase the power efficiency -. To further reduce the losses in powercombining, the multi-function antenna will be considered to “remove” the matching network between the antenna and active components (UNICA) .
In order to fulfill our objectives, the Ph.D. candidate has to realize the following tasks:
➢ Literature review on the existing bio-sourced substrate in considering their physical (RF, mechanical, thermal) properties.
➢ Propose one or several potential bio-sourced substrates that could be used to develop the sub-7 GHz 5G systems.
➢ Complete this literature review by considering the reconfigurable (and) multi-feed antenna.
➢ Design and characterize some conventional antennas (with one feeding source) using the selected bio-sourced substrate(s) to identify and minimize the sources of error and to master the fabrication process.
➢ Design and characterize multi-feed antenna using selected bio-sourced substrate to evaluate the power handing capability in considering the integration with electronics components for reconfigurability.
➢ Design and characterize multi-feed reconfigurable antenna using selected bio-sourced substrate.
➢ Design and characterize active antenna with a distributed network of amplifiers using the UNICA concept.
➢ Education level: Master 2R or Engineer in RF and electronics.
• Knowledge in electromagnetism, antenna, and RF components is required.
• Knowledge in electromagnetism simulation tools (e.g., CST, HFSS, ADS) and the RF measurement equipment (e.g., VNA, spectrum analyzer) will be appreciated.
• Fluency in English will be appreciated.
➢ Experiences: an experience (internship, study project, …) in the RF domain is expected.
➢ Being motivated in sustainable electronics is a plus.
The Ph.D. candidate will join the DHREAMS team from the IMEP-LaHC laboratory (UMR 5130), 03 Parvis Louis Néel, 38016 Grenoble Cedex 1.
How to apply:
Please send us your CV and motivation letter BEFORE 12 MAY 2023.
Registration and financial support:
The Ph.D. candidate will have to register at the doctoral school EEATS and will receive financial support of about 2044.12€ / month (BRUT).
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