Impedance
Impedance is the measure of the opposition that a circuit presents to a current when a voltage is applied. In space and astronautical engineering, impedance is an important concept in the design and analysis of electrical systems, particularly in the context of electromagnetic compatibility (EMC) and electromagnetic interference (EMI). Impedance matching is a technique used to maximize the transfer of power between two circuits by ensuring that their impedances are equal. In space applications, impedance matching is critical for the efficient transfer of power between spacecraft and ground stations, as well as between different components within a spacecraft. Impedance is also a key parameter in the design of antennas, which must be matched to the impedance of the transmission line in order to minimize signal loss. Finally, impedance is an important consideration in the design of power distribution systems, where it can affect the stability and efficiency of the system.
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