Wave transmission lines and networks – Attenuators
Reexamination Certificate
2007-09-18
2007-09-18
Jones, Stephen E. (Department: 2817)
Wave transmission lines and networks
Attenuators
C338S216000
Reexamination Certificate
active
11107556
ABSTRACT:
The present invention is a wideband temperature-dependent attenuator. In a preferred embodiment the attenuator is a modified Tee attenuator having first and second resistors connected in series at a first node and third and fourth resistors connected in shunt between the first node and ground. In a physical implementation of the attenuator, the third and fourth resistors are on opposite sides of the first and second resistors. Preferably, each of the four resistors is formed as a thick film resistor.
REFERENCES:
patent: 2000196395 (2000-07-01), None
Altera Corporation
Jones Stephen E.
Morgan & Lewis & Bockius, LLP
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