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Ferrite Isolators

Isolator (Symbol in a block diagram)

Figure 1: Isolator (Symbol)

Ferrite Isolators

An isolator is a ferrite device that can be constructed so that it allows microwave energy to pass in one direction but blocks energy in the other direction. In this case a terminator is attached to connection 3 converting the reflected energy of the connection 2 in heat. The desired signal direction of the connection 1 to connection 2 passed through the isolator.
 

input-plug
output-jack
dummy-
load

Figure 2: Real isolator for 18 GHz

input-
plug
output-
jack
dummy-
load

Figure 2: Real isolator for 18 GHz

Charakteristics:

Application examples: