The FC-1 is no unstable design like the J-10. It is one of relaxed stability

Sens, do you have any source for that?

You can reduce it further by using hybrid composites so not having to worry to much about the shape

Sure. Dunno if ADA uses that on LCA. You can put a variety of stuff within the composite and alter its properties. But carbon is the best absorbant out there. You can add ferrites and ceramics to get some phase shift if needed.

Yes, but they’re also frequency selective. Given their molecular structure, only certain wavelengths are absorbed

The molecular structure has nothing to do with it. the wavelengths are orders of magnitude bigger than the filament size itself, let alone the molecular structure.

You can vary the impedance of the barrier by adjusting the weave. In any case, the barrier would be a better match to the free space than a metal barrier, resulting in significant absorption. Also, considering the multi layer weave, the energy can not PASS through it for sure. So, it is only the reflected energy you have to worry about. That is going to be significantly lower than a metal surface, any way you cut it.

All the kool things like datalink, energy weapon etc require one missing link, that is the capability to synthesize the microwave in DSP.

With current phase shift based technology, it is impossible to form a beam with a wideband microwave. currently you can only have omnidirectional antennas for datalinks. with only looking forward, what good that will be?