RF Windows transmit RF or microwave power from a vacuum into an air filled an inert gas filled transmission line. An example of this would be a waveguide.  It is a resonant cavity designed to maximize RF (radio frequency) power transmission, with minimal loss over a desired frequency range.

MPF Products, Inc. does not approve the use of ultrasonic cleaning for any viewport.  We ship our viewports UHV ready.  You may simply blow off the glass to remove any contaminants with clean, dry air.  For additional cleaning steps for particulates or contamination from other processes, please review our cleaning procedures at https://mpfpi.com/resources/category/uhv-viewport-cleaning-notes/.

Bake-Out Ramp Rate: 20°C per Minute