Configurable feedback path in an amplitude control system

Details Configurable feedback path in an amplitude control system Configurable feedback path in an amplitude control system

2005-09-20

2005-09-20

Shingleton, Michael B (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C340S635000, C330S20700P, C330S282000, C330S086000, C330S279000, C330S103000, C327S323000

Reexamination Certificate

active

06946910

ABSTRACT:
A configurable feedback path is included in an amplitude control system having a signal source and an amplitude controller, and provides accurate tracking between a signal provided at a test port and a reference signal, whether or not the configurable feedback path is in an internally-leveled configuration or an externally-leveled configuration. The configurable feedback path includes a series of access ports, a detector that has an input coupled to the first access port, a filtered output coupled to the amplitude controller, and an unfiltered output providing the reference signal. The configurable feedback path also includes a signal separator that has an input terminal coupled to the signal source, a thru-terminal coupled to the third access port, and a coupled terminal that is coupled to the second access port. The fourth access port is coupled to the test port.

REFERENCES:
patent: 4996500 (1991-02-01), Larson et al.
patent: 5486791 (1996-01-01), Spitalny et al.
patent: 5555456 (1996-09-01), Waite
patent: 5661442 (1997-08-01), Sparks
patent: 6020787 (2000-02-01), Kim et al.
IEEE Standard Dictionary of Electrical and Electronics Terms Third Edition John Wiley & Sons, Inc. pp 471 and 662.
Agilent Technologies, Inc.—Agilent TC677, GaAs Integrated 0.01-75 GHz Directional Detector; 1GG5-4047 Data Sheet; 3 Pages.

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