[SI-LIST] 40 GHz probe calibration
- From: "Arnav Shah -X (arnshah - BBI TECHNOLOGIES INC at Cisco)" <arnshah@xxxxxxxxx>
- To: "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Sun, 26 Oct 2014 19:15:45 +0000
Hello all,
I am attempting a 40GHz calibration. I previously tried calibrating with 1000um
pitch G S S G differential probes without success. I think at 40GHz there is no
resonance, or planar waves on the cal substrate. Crosstalk is the main problem;
I will try calibrating with <500um probes. Is there a way to measure/calculate
this crosstalk? How can I verify this hypothesis? Right now, I define a good
cal as return loss below 20dB, is there any other information I can use in
determining a good cal?
Thank you!
-Arnav
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