AVAT - Aeronautical antennas for dual-band including L-Band AMS(R)S and other existing aircraft applications


To develop a dual band antenna prototype to be followed by further development activities, in order to generate a product certified for integration with any kind of aircrafts.

The proposed prototype development activity is intended as the first step toward the follow-on process to finally succeed in the massive production of antennas.


To provide  a unique  solutions to integrate in the different type of aircrafts to day available in order to have a single antenna able to perform satellite communication services and  navigation.


To make available an integrated antenna able to perform the dual band service for AMS(R)S plus GPS/Galileo/EGNOS service, in addition of INMARSAT, IRIDIUM and GLOBALSTAR services.


The antenna has  a flat/conformal configuration formed by a dual conformal patch (7/8 elements) array, placed on a circular ground plane electrically connected with the airborne body.

System Architecture

The single patch size is about 54 x 54 mm.

The array diameter is 400 mm with an height of 4,56 mm. 

The antenna is ground-tested in a single configuration only.


The overall duration of the program is 24 months, reaching a target TRL of 4. The program consists of 2 phases.

The  Phase 1 is concerned with establishing the dual antenna baseline solution, the requirements and the preliminary design.

The phase 2 is concerned with the detailed design of the antenna, the manufacturing and the RF test of the prototype and the preparation of a DD&T plan to bring the antenna to a pre-production unit level. 

Certification is outside of the scope of the activity. 

Current status

The program started on 28 November 2016, the activities are presently in progress. 


ESA Contacts

Status date

Wednesday, July 25, 2018 - 08:32