jesuschrist
Member level 4
Hi. For a project i had to design a septum polarizer. But they wanted it to work from +55C to -30C. If i hit these limits my crosspol drops below 30 dB if i use Aluminium.So I found this Invar which is %64 iron and %36 Nickel and has a very low thermal expension coefficient.Here is the Link https://www.nickel-alloys.net/invar_nickel_iron_alloy.html. Aluminium has around 23*10^-6 expansion coefficient while invar has around 1*10^-6. I just wanted to ask if anyone used in their projects or is it usable in EM applications?
Thank you.
Thank you.