Clean Sky

Welcome to the AhEAD Project

The AhEAD Project, Advanced dEsign and testing of a polArimetric X-banD antenna for avionic weather radar, is part of The Clean Sky Systems for Green Operations ITD (Integrated Technology Demonstrator), and in particular the Management of Trajectory and Mission (MTM) work package, which aims at demonstrating that the achievement of pollution reduction can be supported by more precise, reliable and predictable Green Trajectories, optimised for minimum noise and emissions in each flight phase, including agile trajectory management in response to unpredicted events, (e.g. the insurgence of unforeseen weather phenomena). The use of polarimetric radar has been proposed as the enabling technology for higher performances in classifying weather phenomena and therefore for optimizing the avoidance trajectory from the Clean Sky point of view.

The scope of the call is the design of a polarimetric avionic radar antenna operating at X-band for weather characterization and classification. The validation of the antenna design is required using two different approaches:

  • Simulation, where the overall antenna performances are analysed and demonstrated;
  • Realization of an antenna breadboard/prototype and testing of its performances through suitable measurements to demonstrate the validity of the design methodology.

The work should be divided into the following steps:

  • Antenna system requirements definition;
  • Survey and critical analysis of the available polarimetric X-band radar antenna technologies and selection of the most suitable architecture for airborne weather radar applications;
  • Array antenna modelling and design;
  • Performance analysis via numerical simulation;
  • Implementation of a breadboard/prototype antenna with no final form, but suitable to infer final performances (e.g.: a sub-array of a greater complete array antenna);
  • Breadboard/prototype measurements;
  • Validation of the antenna design methodology through measurement data analysis;
  • Technological roadmap for full device implementation.

Project Updates

Clean Sky AhEAD Website Launched

As per the requirements of WP6 - Dissemination, this Project Web Site has been created for the Clean Sky AhEAD Project


Clean Sky AhEAD Project Commences

The “AhEAD” project for the advanced design and testing of polarimetric X-band antenna for avionic weather radar officially started on June 16th, 2014, and on the 24th of June IDS hosted the Kick-Off meeting at its premises in Pisa.