Wave transmission lines and networks – Automatically controlled systems – With control of equalizer and/or delay network
Reexamination Certificate
2004-08-26
2008-11-04
Jones, Stephen E (Department: 2817)
Wave transmission lines and networks
Automatically controlled systems
With control of equalizer and/or delay network
C333S02800T
Reexamination Certificate
active
07446622
ABSTRACT:
A transmission line is provided with added shunt resistance, RSH, distributed along the length of the micro transmission line permitting the extension of constant characteristic impedance to the transmission line to lower signal frequencies. The loss in gain to the signal propagating the transmission line due to the added resistance can be compensated for by amplification provided at the output of the transmission line or at output taps provided along the length of the transmission line such as in cases where the line is utilized as a circuit delay line. An exemplified application disclosed is an analog delay line formed as a metal microstrip in an IC chip circuit provided, for example, in a feed forward equalizer (FFE).
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Carothers, Jr. W. Douglas
Infinera Corporation
Jones Stephen E
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