Packaging strip line S parameters

Citation Author(s):
Chiu-Chih
Chou
Submitted by:
Chiu-Chih Chou
Last updated:
Mon, 07/08/2024 - 15:59
DOI:
10.21227/ysqw-t246
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Abstract 

1110612_PKGstrip_10cm_100pH_2xthru.s2p  -- The S parameters of the 2x-thru standard, solved by Ansys Q2D+Designer.

1110612_PKGstrip_20cm_100pH_FDUT.s2p  -- The S parameters of the fixtured DUT, solved by Q2D+Designer.

1110612_PKGstrip_10cm_DUT.s2p  --  The S parameters of DUT (without fixture), solved by Q2D.

The DUT is 10cm strip line. The fixture contains a 100pH series inductor and 5cm strip line.

Fixture A and fixture B are symmetric.

Instructions: 

Step 1: Analyze the 2x-thru circuit and solve the fixture S parameters.

Step 2: De-embed the fixtured-DUT using the fixture S parameters.

Step 3: Estimate the reference impedance and renormalize to 50 ohm.

Step 4: Compare your results against the reference answer (the DUT s2p).