Updated July 6,
Search for circulators
and isolators on EverythingRF.com
here to go to our main page on ferrite devices
here to go to the companion page on circulators
By terminating one port, a circulator
becomes an isolator, which has the property that energy flows on
one direction only. This is an extremely useful device for "isolating"
components in a chain, so that bad VSWRs don't contribute to gain
ripple, or lead to instabilities (unwanted oscillations). An isolator
is a non-reciprocal,
CW and CCW isolators
Here's a WR42 (Ka-band) waveguide
isolator we spotted recently on Ebay for forty bucks. This one is
clockwise orientation (at least until you flip it over!) The waveguide
is made in the way that is most
sensitive to weld integrity. The load is probably rated at 1
watt or less (it is pretty small). Click for a close-up view!
If you want to learn where the
name "Farinon" came from (it appears on the isolator photo
above), visit our "where
are they now" page!
More to come!