Does cured Epoxy absorb microwaves?
"Eike Lantzsch, ZP6CGE" ) writes:
I know that microwaves are sometimes used to cure epoxy but does
cured epoxy absorb microwaves? More practically put: can I use
epoxy to glue some parts of a double quad for 2.4GHz?
Not sure if it is relevant to modern materials, but when I worked for the
National Research Council (Canada) many years ago, I used to make dummy
loads by mixing a powdered ferrite material with the then-available epoxy
cement and pouring a tapered slab of this mix into the waveguide. (These
were used as the flat load at liquid nitrogen temperatures in a Dicke
radiometer at S and X bands.)
.... Martin VE3OAT
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