RF (VHF) chokes - RF Cafe Forums
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Post subject: RF (VHF) chokes Posted: Thu Mar 15, 2007 6:00 am
Joined: Wed Feb 07, 2007 3:18 am
Design a 50W tx tuner filter requires lots of RF chokes, but the chokes i used (20uH Axis chokes) have too low Q factor. so,is there any manufactor have better product, thanks!
Post subject: chokesPosted: Wed Mar 21, 2007 6:23 pm
Joined: Tue Mar 06, 2007 2:40 pm
The distributed capacitance (SRF) and reduced Q at VHF for molded chokes.
You may need to switch to ferrite beads and decoupling resistors to get the rejection you need.