Amplifiers – With semiconductor amplifying device – Including distributed parameter-type coupling
Reexamination Certificate
2010-01-04
2011-10-11
Nguyen, Khanh (Department: 2817)
Amplifiers
With semiconductor amplifying device
Including distributed parameter-type coupling
C330S054000
Reexamination Certificate
active
08035449
ABSTRACT:
The present disclosure relates to a capacitively-coupled distributed amplifier (DA) having an input line and an output line that are coupled to one another through a broadband interface network and DA segments. The input line receives an input signal and the output line provides an output signal based on amplifying the input signal. The broadband interface network includes a group of capacitive elements coupled between the input line and the DA segments to extend a gain-bandwidth product of the DA. The broadband interface network further includes a resistor divider network coupled between the input line and the DA segments to extend a lower end of an operating bandwidth of the DA. As such, the operating bandwidth of the DA may extend from baseband frequencies to microwave frequencies.
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Nonfinal Office Action mailed Feb. 25, 2011 regarding U.S. Appl. No. 12/651,726.
Notice of Allowance mailed Jun. 24, 2011 regarding U.S. Appl. No. 12/651,726.
Nguyen Khanh
RF Micro Devices, Inc.
Withrow & Terranova, P.L.L.C.
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