Agilent / HP W365A

This is an ideal isolator for test and measurement applications.

Its high, broadband isolation (better than 25dB) minimizes the reflection effects of a source.

Its low SWR and low insertion loss helps to improve accuracy without the attenuation of matching pads.

It consists of a section of waveguide containing low-loss ferrite material and impedance matching elements.

A permanent magnet supplies the external magnetic bias field to the ferrite core.