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ferrite based power divider

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Electron3

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how to design a power divider with ferrite beads
at 10-100MHz frequency for max 1 watt power
 

Power dividers can use transmission line stubs or transformers. Do you see any literature references for implementation with "ferrite beads"?
 

yes i am having litreture

Wilkinson_divider_28MHz.jpg
 


FVM is right that the circuit in your pic will never do wideband, but I have seen similar using binocular (2-hole) ferrites and bifilar wire. I'm uncertain those will handle 1Watt.
 

i tried similar design but didn't find even narrow band from prototype what should be the approach with ferrites
 

The "ferrite" is actually a RF inductor, I guess with a powder core. It's forming a 100:50 ohm matching circuit together with the capacitors.
 

Your bandwidth of 10-100 MHz can never be reached with ferrites
 

Your bandwidth of 10-100 MHz can never be reached with ferrites
Click to expand...
We should quickly clarify the terms. In the post #3 design, "ferrite based" actually means lumped LC, specifically based on single pi-filter. As said it can't be wideband.

A transformer based 10 - 100 MHz power divider would be well possible using ferrites, using the basic circuit linked in post #4. Another approach would be a multi-section lumped LC circuit, the lumped equivalent of a multi section transmission line Johnson power divider. It could possibly use ferrite core inductors.
 

Okay, I was being premature. When building a power divider, I was thinking of using some kind of transformer with 2 secondary windings. Most ferrites have a limited bandwidth. When looking at the amidon datasheets for example, I would look at ferrite type materials. Material 43 runs from 1-50 MHz and material 61 goes from 10-200.

Specs at **broken link removed**

Regards,
Joop
 

at 64 Mhz

multi-section lumped LC circuit, the lumped equivalent of a multi section transmission line Johnson power divider.
give me idea about this one
 

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