RF can apertures - RF Cafe Forums
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Below are all of the forum threads, including all the responses to the original posts.
Post subject: RF can apertures
Unread postPosted: Tue Jan 18, 2005 8:39 am
I would like to calculate the maximum aperture size in a RF can to prevent RF energy @2.4GHz radiating through the can.
The can material is brass nickle plate fixed to a FR4 pcb.
I currently have apertures of 0.3mm X 2.5mm spaced along the bottom wall edges to thermally relieve the pcb contacts of the can.
Is this OK?
I have been told aperture dimensions should not exceed 0.6mm square before RF @2.4GHz sees the "gap" - in which case my existing can would fail to block the RF.
Can anyone please advise?
Post subject: APERTURE FINGS
Unread postPosted: Tue Jan 18, 2005 1:08 pm
Keep any hole smaller than wavelength / 20
Fill your boots