building big radio dishes, e.g. China's 500m FAST?

[Widdekind]

Could you build a big "cargo-net", of metal cables, to create a radio-reflective "rigging", which could be adjusted, similar to the sails of ships ?? For, if suspension bridges can be built, with vaguely similar "riggings", of metal cables, spanning distances of many km; then one could plausibly build radio "net" antennae many miles across. And, such a "rigging" of cable "netting" could be adjusted, to reshape the "net", and thereby steer the aperture.