Automatic impedance matching using resistive and reactive diodes

Wave transmission lines and networks – Automatically controlled systems – Impedance matching

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Details

325 24, 343180, H03H 740

Patent

active

040286452

ABSTRACT:
An impedance matching device is disclosed which automatically maintains h isolation between two opposite ports of a four port hybrid while the impedance of one of the other ports varies randomly. The device operates by sampling the signal at the output of the port it is desired to isolate and adjusting the impedance of the port opposite the port of randomly varying impedance in such a way as to minimize the sampled signal and thereby maintain isolation.

REFERENCES:
patent: 3617953 (1971-11-01), Kingma et al.

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