Reply to post: Maybe something has been lost in translation.

Blight the power: Jamming attack cripples wireless signals using clever reflective technology

JassMan

Maybe something has been lost in translation.

I think the use of passive and even the word power are taken as some sort of shorthand. I haven't read the original paper so I'm guessing that the IRS is an analog of a LED or paperInk at RF. It consumes minimal power the control reflection/transmission . Even if it remains in a given state once confgured it will still take power (possibly down in milliwatts) to change. Statefullness may also explain the use of 'passive'.

It sounds like a useful material but they need to sort out their terminology.

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