HF ferrite core transformer, tan(delta) = 1, can I use it?

Status
Not open for further replies.
H

htg

Full Member level 5
Joined
May 1, 2010
Messages
248
Helped
5
Reputation
10
Reaction score
3
Trophy points
1,298
Location
Poland
Activity points
2,862
I consider making a 200 MHz transformer with a ferrite core. Tan(δ) = 1 at 200 MHz, but calculated power loss is very small. Should I believe that I can use this ferrite?
 

Re: HF ferrite core transformer, tan(delta) = 1, can I use i

You won't hardly find a ferrite material with much better performance at 200 MHz. The parameter indicates, that you can't design ferrite inductors with considerable Q in the > 100 MHz range, neither a resonant transformer. But a wideband ferrite transformer can still work at several 100 Mhz, or even > 1 GHz. That's because the main inductance (which changes into an almost real parallel impedance at high frequencies) is sufficient high related to the transformer characteristic impedance.
 

    H

    htg

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…