TRL calibration board drawing
时间:04-04
整理:3721RD
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Hi All,
I want to draw the TRL board for calibration purpose. Since my RF trace including the footprint of the DUT, do I include the footprint in the drawing? or i just take into account the RF length to DUT reference (as in pic1).
Thank you
I want to draw the TRL board for calibration purpose. Since my RF trace including the footprint of the DUT, do I include the footprint in the drawing? or i just take into account the RF length to DUT reference (as in pic1).
Thank you
Usually the packaged S parameters taken by the chip/transistor manufacturers includes the pins length, so you don't need to take in consideration traces inside the DUT reference.
If you do your own S parameter measurements, better is to include traces inside DUT reference.
You'd better read the datasheet of your IC, most of the time the vendors set the ref plane at the edge of the package, not including the pin length. Including or not should be clearly note in the datasheet.
