Electrical resistors – With inductance-reducing
Reexamination Certificate
2005-04-05
2005-04-05
Easthorn, Karl (Department: 2832)
Electrical resistors
With inductance-reducing
C338S062000, C338S063000, C338S307000, C338S254000, C338S328000
Reexamination Certificate
active
06876291
ABSTRACT:
The present invention relates to an electrical resistor (1), in particular for measuring alternating currents of high frequency, comprising connectors (2, 3) for feeding the current to be measured and connectors (4, 5) for tapping the voltage to be measured and having a layered structure including at least one resistive layer (10), a return conducting layer (11) and any possibly provided insulating layers (7, 12, 21, 22, 24). To obtain a measuring resistance having a particularly good frequency response, a high long-term stability and an efficient cooling and which, moreover, is inexpensive to produce, it is provided for the resistive layer (10) together with the return conducting layer (11) and the possible insulating layers (7, 12, 21, 22, 24) to be part of a multilayered printed circuit board and to comprise a plurality of conductive tracks (14) extending from a central region of the resistive layer (10) towards outside. Preferably, the return conducting layer (11) comprises conductive tracks (15) of the same geometrical shape as the conductive tracks (14) of the resistive layer (10).
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Easthorn Karl
Lem Norma GmbH
Merchant & Gould P.C.
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