METHOD AND ARRANGEMENT FOR A LOW RADAR CROSS SECTION ANTENNA
The invention provides a low-RCS (Radar Cross Section) antenna structure for an Active Electrically Scanned Antenna, AESA, comprising an AESA enclosure and at least two antenna elements. Said antenna elements being arranged to be mounted on a front surface of the AESA enclosure and embedded in a lightweight structure, where the front surface and side surfaces of the AESA enclosure and the antenna elements are arranged to be covered with the lightweight structure. A thin laminate is arranged to cover an outer top surface and an outer side surface of the lightweight structure. Parts of the lightweight structure is arranged to be doped with a lossy material having dielectric, magnetic and/or resistive losses, thus making these parts of the lightweight structure absorbing for electromagnetic radiation.