Telecommunications – Transmitter and receiver at separate stations – Distortion – noise – or other interference prevention,...
Reexamination Certificate
2007-12-25
2007-12-25
Anderson, Matthew (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Distortion, noise, or other interference prevention,...
C455S063400, C455S073000, C455S078000, C455S083000
Reexamination Certificate
active
11079796
ABSTRACT:
Provided is a switched multiplexer configured to combine first, second, third and fourth signal paths each covering a sub-octave in a frequency range of from about 2 to about 18 GHz and to remove transmitter harmonics of an input signal to create a stable output impedance across the frequency range. The switched multiplexer comprises a transmit switch, a first diplexer and a power combiner. The first diplexer is connected in parallel with a second diplexer. The first diplexer comprises first and second signal paths. The second diplexer comprises third and fourth signal paths. Each one of the first, second and third signal paths include respective ones of the first switch, a second switch and a third switch, each interconnected to respective ones of a first signal path high-pass filter, second signal path low-pass filter and third signal path low-pass filter by respective ones of a first, second and third filter. Each one of the first, second and third filters have a respective filter capability in the range of from about 6-10.4 GHz, 2-3.5 GHz, and 3.5-6 GHz.
REFERENCES:
patent: 4272730 (1981-06-01), Digiovanni
patent: 4328499 (1982-05-01), Anderson et al.
patent: 4363139 (1982-12-01), Sullivan, Jr.
patent: 4535286 (1985-08-01), Sullivan, Jr.
patent: 4641368 (1987-02-01), Sullivan, Jr.
patent: 4700191 (1987-10-01), Manor
patent: 4728958 (1988-03-01), Choate
patent: 5287543 (1994-02-01), Wolkstein
patent: 5508661 (1996-04-01), Keane et al.
patent: 5640694 (1997-06-01), Milton, Jr.
patent: 5838675 (1998-11-01), Rauscher
patent: 5940029 (1999-08-01), Ninomiya et al.
patent: 6519773 (2003-02-01), Ahmed et al.
patent: 6781968 (2004-08-01), Colella et al.
patent: 6970681 (2005-11-01), Darabi et al.
patent: 7181175 (2007-02-01), Nimmo-Smith et al.
patent: 2004/0041554 (2004-03-01), Miyauchi
patent: 2005/0054383 (2005-03-01), Webster et al.
Bialek Edward J.
Heimbueger James J.
Irwin Christopher J.
Anderson Matthew
Northrop Grumman Corporation
Pham Tuan
Stetina Brunda Garred and Brucker
LandOfFree
Switched multiplexer method to combine multiple broadband RF... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Switched multiplexer method to combine multiple broadband RF..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switched multiplexer method to combine multiple broadband RF... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3857363