imec - TX-to-RX leakage mitigation in radar for vital-sign detection

At imec, circuits4IoT

The radar receiver suffers from TX leakage due to its finite isolation. A novel TX-to-RX leakage cancellation technique are required to relax the LO phase noise and RX dynamic range requirements. This project focuses on designing the TX-to-RX leakage mitigation.


Project Description

In radar application, e.g. vital sign or occupancy detection, the transmitter (TX) and receiver (RX) operate simultaneously. The TX leakage from RX significantly increase the dynamic rage of the RX, complexity of the antenna and degrade the noise performance due to phase noise. A passive cancellation approach using three-port duplexer can separate the RX and TX paths and share a single antenna, while the active cancellation compensate the noise in the RX path. In this project, the TX-to-RX leakage issue for radar application will be studied, and the integrated circuits will be implemented. In this project, three main goals will be implemented in advanced CMOS technology:


  • Passive approach to achieve a high isolated duplexer
  • Active approach to achieve a high isolated duplexer
  • Overall design for the duplexer and its verification


Your Tasks

  • Literature studies on state-of-the-art wireless transceiver
  • Understanding both analog and digital design methodologies
  • RF basics
  • Architecture study and proposal
  • Circuit implementation
  • Layout and post-layout simulation
  • Tape-out and measurement


Your Profile

  • Good analytical skills
  • Knowledges of designing CMOS circuits
  • Motivated student eager to work independently and expand knowledge in the field
  • Good written and verbal English skills  


For all inquiries, please contact:

Ms Najat Loiazizi, HR specialist.

Telephone number: +31 (0)40 40 20 675


Apply now