Fig. 3 | Nature Communications

Fig. 3

From: A metamaterial-enabled design enhancing decades-old short backfire antenna technology for space applications

Fig. 3

The fabricated A-SBFA. a Fabricated slotted patch feed and subreflector with 3D-printed mounting fixture. Both were machined out of aluminum. b Underside of A-SBFA, showing fabricated impedance matching network. c View of assembled A-SBFA showing 3D-printed aluminum cavity, feed antenna and subreflector, as well as copper metasurfaces etched on a thin substrate and separated from cavity walls by a low permittivity foam layer

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