Dorado International Low loss T-Junction Waveguide Isolator 4IWN25-001 for WR42

Description

This is a Brand New Dorado International Low loss T-Junction Waveguide isolator 4IWN25-001 for WR42 .
NOTE: This item crosses with the Raditek isolator P/N: 17717. Therefore, the datasheet in the pictures is applicable to this isolator as well.
Detailed specs (datasheet) is in the pictures.
It is very important you have a good match rated at the proper power on the third port, for the unit to work consistently. Failure to do this, will invalidate any specified performance of the unit, including Intermodulation characteristics. Adding phase (i.e. length of cable) between the third port and the load will also affect performance, and change the “s” parameters. Raditek recommends using an isolator with a correctly matched load rather than a circulator with an external load to ensure optimum isolation Assuming the device is properly terminated at its third port, the isolation will hold for any mismatch or phase angle at the output. The insertion loss will have an additional mismatch loss associated with the degree of mismatch at the output, but the device connected to the input of the isolator will not see any power greater than the incident power through the isolator, minus the isolation of the isolator. Example: If 100 Watts is going through the isolator, and the isolator is open circuit at the output, nearly all power will be reflected back into the output of the isolator and be absorbed in the load (assuming a 100W load and the load is kept to below 100 degrees C by a heatsink). At the input, if the isolator isolation is 25 dB, (the 100Watts is 50 dBm) so <25 dBm (50-25dB) (<0.5 Watts) will be seen by the device at the input.
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