Abstract: A multiple beam antenna structure. Network components (7, 8) may be integrated into panels (4, 5). Panels (4, 5) may be joined to form a panel architecture (6). Network paths (9) may be formed through the panel architecture (6) at joinder locations (9) of network components (7, 8) integrated into the panels (4, 5). The panel architecture (6) may have a reduced mass and permit increased network density.

Abstract: A heat exchanger is provided by assembling a plurality of individual plates having opposed faces, wherein flow channels are machined through those opposed faces, and the plates are interconnected with intervening shim plates. End plates are connected to an assembly of such plates and intermediate plates, to form a preform, which is then machined to a desired cross section. The resulting structure has a plurality of passages therethrough in one direction, and a second plurality of passages therethrough in a second direction, the passages fluidly isolated from one another. The resulting structure is configurable to a specific geometry of a flow passage, and enables heat exchange between fluids passing through the different flow channels.