ALCATEL ESPACE, Toulouse, France, is developing active antenna technology, and designing and manufacturing tiles for two civil radar projects. One is for SPOTRADAR, a CNES (French Space Agency) project, and consists of 1/64th (equals one tile) of a 100 MHz X-band radar active antenna. The tile consists of 96 one-Watt-T/R modules, 3 power supplies, one radiating panel, 2 corporate feeds (one for T/R, one for internal calibration), and one control unit. The development started in 1990 and will be completed by March 1994. The other one is for ASAR, an ESA (European Space Agency) project, and consists of 1/20th (equals one tile) of a 16 MHz C-band radar active antenna. The tile consists of 16 eight-Watt T/R modules, 4 power supplies, one radiating pane, 2 corporate feeds, and one control unit. The development started in September 1991 and will be completed by June 1993. All tiles are representative of flight hardware and will be tested under space environment. This paper describes: (1) missions and radars, (2) whole antenna characteristics and projected performances, and (3) on-going developments and available test data (T/R modules, radiating panels, ...).