I wonder, if I might use the word: 'underpinning' in the context of technologies.

Looking for examples, I usually only find it in the context of theories and arguments.

Example: "MIMO is underpinning many modern technologies"


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It's a bit off. The usage you're trying to leverage is given by Merriam-Webster as

something that serves as a foundation : basis, support —often used in plural

which is taken by analogy from

the material and construction (as a foundation) used for support of a structure

To my ear, that analogy is a bit off here. Much more common is something like

MIMO enables many modern technologies.


MIMO is the basis of many modern technologies.


MIMO is at the heart of many modern technologies.

IMHO, the first is the most appropriate for MIMO.

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