Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part
Reexamination Certificate
2008-03-04
2008-03-04
Vuong, Quochien B. (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Having measuring, testing, or monitoring of system or part
C455S307000
Reexamination Certificate
active
10883100
ABSTRACT:
A receiver channel, test system and method employ adaptive nulling to filter a targeted frequency component from a pulsed signal to produce a filtered pulsed signal. The filtered pulsed signal facilitates measuring pulsed performance parameters of a device under test. The receiver channel includes an adaptive nulling filter having a frequency response with a null that is adjustable in a null location to correspond to a vicinity of the targeted component. The test system includes a pulsed signal source, a test set, and a controller that controls the signal source and the test set. The test set includes the receiver channel with the adaptive nulling filter. The method of adaptive null filtering includes adjusting a location of a null in a frequency response of the adaptive nulling filter to correspond to a vicinity of the targeted component to produce the filtered pulsed signal.
REFERENCES:
patent: 5045945 (1991-09-01), Herman et al.
patent: 5268927 (1993-12-01), Dimos et al.
patent: 5278780 (1994-01-01), Eguchi
patent: 5744969 (1998-04-01), Grochowski et al.
patent: 5872540 (1999-02-01), Casabona et al.
patent: 5937006 (1999-08-01), Clark et al.
patent: 5940455 (1999-08-01), Ikeda
Robert E. Shoulders et al., “Pulsed Antenna Measurements with the Agilenet PNA Microwave Network Analyzer”, Proceedings of the Meeting and Symposium of Antenna Measurement and Techniques Association, Irvine, CA, USA, 2003, pp. 86-91.
Loren Betts et al., “Improved Techniques for High-Performance Pulsed Measurements using Microwave Vector Network Analyzers”, Proceedings of Asia Pacific Microwave Conference (APMC) 2003.
Loren Betts, “Make Accurate Pulsed S-Parameter Measurements”, Microwaves and RF, Nov. 2003, Vol. 42, No. 11.
David Vondran, “Techniques for Pulsed S-Parameter Measurements”, High Frequency Electronics, Mar. 2003, pp. 50-57.
5989-0563EN “PNA Microwave Network Analyzers, Accurate Pulsed Measurements”, Application Note 1408-11, Agilent Technologies, Inc., Feb. 17, 2004, pp. 1-16.
5989-0221EN, “Pulsed Antenna Measurements Using PNA Network Analyzers”, White Paper, Agilent Technologies, Inc., Jan. 6, 2004, pp. 1-12.
5988-7989EN, “Agilent PNA Series Microwave Network Analyzers, Configuration Guide”, Agilent Technologies, Inc., Feb. 1, 2004, pp. 1-20.
Betts Loren C.
Shoulders Robert E.
Agilent Technologie,s Inc.
Vuong Quochien B.
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