Hi,

From my search, I found two companies that manufacture field strength
meters: Potomac Instruments and Z-Technology. I was wondering if there
are others. It seems that these companies do not go past 3Ghz.

We are interested in measuring field strength all the way up to 18Ghz.
Does anyone know of any manufacturers that do this?

An alternative would be to use spectrum analyzers with the right
antenna, but I'm not aware of any spectrum analyzer that measure field
strength. From my lab experience, we were mostly dealing with dBm. I
did not see any option for V/m. Plus, they are very expensive. Thanks!