Questions tagged [rf-electronics]

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Detection of weak signal by satellites

An animal's blood pressure and/or body movements can be used to generate a few mW of electrical energy. Can an RF transmitter which radiates 1 mW be detected by receivers (without any parabolic ...
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Can a piece of conductor be made invisible to radar by overdamping?

To my understanding every conductor reemits a bit of electromagnetic waves induced in it by radiation. If theres a way in an antenna one could create a wave of opposite phase to the incident one so ...