Abstract: The invention relates to a space frame radome comprising a sheet, said sheet comprising high strength polymeric fibers and a plastomer, wherein said plastomer is a copolymer of ethylene or propylene and one or more C2 to C12 alpha-olefin co-monomers and wherein said plastomer has a density as measured according to ISO1183 of between 860 and 940 kg/m3 and wherein the sheet has an areal density that is with at most 500% higher than the areal density of the high strength polymeric fibers.

Abstract: Composite radome wall structures (10) exhibit both antiballistic and radar transparency properties and include an antiballistic internal solid, void-free core (12) and external antireflective (AR) surface layers (14-1, 14-2) which sandwich the core. The antiballistic core can be a compressed stack of angularly biased unidirectional polyethylene monolayers formed of tapes and/or fibers. Face sheets (16-1, 16-2) and/or one or more impedance matching layers (27, 28) may optionally be positioned between the antiballistic core and one (or both) of the external AR layers so as to bond the core to the AR surface layer(s) and/or selectively tune the radome wall structure to the frequency of transmission and reception associated with the radar system.

Abstract: Composite radome wall structures (10) exhibit both antiballistic and radar transparency properties and include an antiballistic internal solid, void-free core (12) and external antireflective (AR) surface layers (14-1, 14-2) which sandwich the core. The antiballistic core (12) can be a compressed stack of angularly biased unidirectional polyethylene monolayers formed of tapes and/or fibers. Face sheets (16-1, 16-2) and/or one or more impedance matching layers may optionally be positioned between the antiballistic core (12) and one (or both) of the external AR layers (14-1, 14-2) so as to bond the core to the AR surface layer(s) and/or selectively tune the radome wall structure to the frequency of transmission and reception associated with the radar system.

Abstract: The invention relates to a space frame radome comprising a sheet, said sheet comprising high strength polymeric fibers and a plastomer, wherein said plastomer is a copolymer of ethylene or propylene and one or more C2 to C12 alpha-olefin co-monomers and wherein said plastomer has a density as measured according to ISO1183 of between 860 and 940 kg/m3 and wherein the sheet has an areal density that is with at most 500% higher than the areal density of the high strength polymeric fibers.

Abstract: Composite radome wall structures (10) exhibit both antiballistic and radar transparency properties and include an antiballistic internal solid, void-free core (12) and external antireflective (AR) surface layers (14-1, 14-2) which sandwich the core. The antiballistic core can be a compressed stack of angularly biased unidirectional polyethylene monolayers formed of tapes and/or fibers. Face sheets (16-1, 16-2) and/or one or more impedance matching layers (27, 28) may optionally be positioned between the antiballistic core and one (or both) of the external AR layers so as to bond the core to the AR surface layer(s) and/or selectively tune the radome wall structure to the frequency of transmission and reception associated with the radar system.

Abstract: Composite radome wall structures (10) exhibit both antiballistic and radar transparency properties and include an antiballistic internal solid, void-free core (12) and external antireflective (AR) surface layers (14-1, 14-2) which sandwich the core. The antiballistic core (12) can be a compressed stack of angularly biased unidirectional polyethylene monolayers formed of tapes and/or fibers. Face sheets (16-1, 16-2) and/or one or more impedance matching layers may optionally be positioned between the antiballistic core (12) and one (or both) of the external AR layers (14-1, 14-2) so as to bond the core to the AR surface layer(s) and/or selectively tune the radome wall structure to the frequency of transmission and reception associated with the radar system.

Abstract: The invention relates to a radome wall comprising a composite panel of a sandwich type containing two facings separated by a core of an expanded polymeric material wherein the facings contain a multi-layered sheet comprising a consolidated plurality of layers, said layers containing polymeric tapes.