Design of a 20 GHz DPI fixture for SOIC8

by S.T. Op ‘t Land, R. Perdriau, M. Ramdani, I. Gil, F. Lafon, M. Drissi
Abstract:
The direct power injection (DPI) test defined in IEC 62132-4 measures the conducted immunity of integrated circuits (ICs) up to 1 GHz. As the frequency of functional and interference signals is increasing, we would like to characterise immunity for higher frequencies as well. In this paper, we show why typical IEC 62132-4 compliant DPI set-ups become inaccurate when going up to 20 GHz. We propose to determine the power Ptrans actually transmitted to the device under test (DUT) by using offline short-open-load-thru (SOLT) or thru-reflect-line (TRL) calibration. Furthermore, we design a low-cost FR4 printed circuit board (PCB) that allows for testing of SOIC8-packaged ICs. We verify that this board has acceptable and reproducible losses up to 20 GHz, as well as acceptable crosstalk.
Reference:
S.T. Op ‘t Land, R. Perdriau, M. Ramdani, I. Gil, F. Lafon, M. Drissi, “Design of a 20 GHz DPI fixture for SOIC8″, In EMC Europe, 2012.
Bibtex Entry:
@inproceedings{emceur12,
	Abstract = {The direct power injection (DPI) test defined in IEC~62132-4 measures the conducted immunity of integrated circuits (ICs) up to 1 GHz. As the frequency of functional and interference signals is increasing, we would like to characterise immunity for higher frequencies as well.

In this paper, we show why typical IEC~62132-4 compliant DPI set-ups become inaccurate when going up to 20 GHz. We propose to determine the power Ptrans actually transmitted to the device under test (DUT) by using offline short-open-load-thru (SOLT) or thru-reflect-line (TRL) calibration. Furthermore, we design a low-cost FR4 printed circuit board (PCB) that allows for testing of SOIC8-packaged ICs. We verify that this board has acceptable and reproducible losses up to 20 GHz, as well as acceptable crosstalk.},
	Author = {{Op 't Land}, S.T. and Perdriau, R. and Ramdani, M. and Gil, I. and Lafon, F. and Drissi, M.},
	Booktitle = {EMC Europe},
	Date-Added = {2012-07-17 14:32:40 +0000},
	Date-Modified = {2012-11-21 13:57:56 +0000},
	Month = {September},
	Title = {Design of a 20 {GHz} {DPI} fixture for {SOIC8}},
	Url = {http://eseo-emc.fr/wp-content/uploads/2012/11/OptLand_Centimetre_DPI-local.pdf},
	Year = {2012},
	Bdsk-Url-1 = {http://eseo-emc.fr/wp-content/uploads/2012/11/OptLand_Centimetre_DPI-local.pdf}}