Spatial transformer for RF and low current interconnect

Details Spatial transformer for RF and low current interconnect Spatial transformer for RF and low current interconnect

2006-05-18

2008-09-16

Nguyen, Vinh P (Department: 2829)

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

Reexamination Certificate

active

07425837

ABSTRACT:
A spatial transformer includes an insulating substrate; a plurality of test terminal assemblies on the substrate; and a plurality of contact surfaces on the transformer, each providing an interconnection point for electrical connection between a respective test terminal assembly and a device under test. Each test terminal assembly has a center conductor trace on an upper substrate surface; a lower substrate guard trace beneath the center conductor trace; and a pair of upper substrate guard traces adjacent to opposite sides of the center conductor trace, the guard traces being electrically interconnected. The guard traces in combination with the center conductor trace provide a desired characteristic impedance for an RF signal applied therebetween or a guarded DC connection for a DC signal applied to the center conductor trace and a DC guard applied to the guard traces.

REFERENCES:
patent: 3911361 (1975-10-01), Bove et al.
patent: 6034533 (2000-03-01), Tervo et al.
patent: 6160412 (2000-12-01), Martel et al.
patent: 6531932 (2003-03-01), Govind et al.
patent: 2003/0117157 (2003-06-01), Tervo et al.
patent: 2004/0085081 (2004-05-01), Logelin et al.
patent: 2006/0181293 (2006-08-01), Sullivan et al.

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