OSH Park
Generic Bandpass Filter
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Generic Bandpass Filter
by Kelbit.
2
layer board of
1.75x0.50
inches
(44.53x12.75
mm).
Shared on
September 26th, 2014 17:03.
An inline RF bandpass filter (unbalanced). Solder through-hole SMA connectors (example: DigiKey P/N A97594-ND) to the ends and then populate your own LC ladder network on the 0603 pads.
Traces have 50 ohm characteristic impedance based on OSHPark 2-layer stackup, planes have been via stitched for better RF performance.
You may want to mount the board inside a small metal box for shielding.
A good resource for calculating the LC values is: http://www-users.cs.york.ac.uk/~fisher/lcfilter/