Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Reexamination Certificate
2007-09-27
2010-10-12
Pascal, Robert (Department: 2817)
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
C333S103000, C333S164000
Reexamination Certificate
active
07812690
ABSTRACT:
The invention relates to a compact power-agile filter. The filter is a capacitance-weight filter comprising two electromagnetically-coupled oscillating circuits. Each oscillating circuit comprises capacitance weights. Each capacitance weight is controlled by signals. The filter comprises at least one motherboard and one daughterboard which are physically separate. The daughterboard comprises the capacitance weights, the motherboard comprises all the oscillating circuits. In particular, the invention applies to the power filter included in a radiocommunication system amplification module. For example, the invention can be used by a radiocommunication system that can be programmed by software means adapting to a range of signals extending over a wide frequency band.
REFERENCES:
patent: 5625325 (1997-04-01), Rotzoll et al.
patent: 5905398 (1999-05-01), Todsen et al.
patent: 6150901 (2000-11-01), Auken
patent: 6211745 (2001-04-01), Mucke et al.
patent: 6388532 (2002-05-01), Babcock
patent: 6400231 (2002-06-01), Leduc et al.
patent: 6438012 (2002-08-01), Osaka et al.
patent: 6535075 (2003-03-01), Frech et al.
patent: 6633219 (2003-10-01), Marbach et al.
patent: 6760575 (2004-07-01), Welland
patent: 6778022 (2004-08-01), Zhang et al.
patent: 6806781 (2004-10-01), Bisanti et al.
patent: 7102465 (2006-09-01), Utsunomiya et al.
patent: 7109810 (2006-09-01), Senthilkumar et al.
patent: 7183880 (2007-02-01), Kamata et al.
patent: 7230503 (2007-06-01), Huang
patent: 7259643 (2007-08-01), Son et al.
Entesari et al., “A Differential 4-Bit 6.5-10-GHz RF MEMS Tunable Filter”, IEEE Transactions on Microwave Theory and Techniques, vol. 53, No. 3, Part 2, pp. 1103-1110 (2005) XP001225632.
Peterson, “GaAs Insertion Enhances SINCGARS RF Preselector”, Tactical Communications Conference, vol. 1 Tactical Communications: Technology in Transition, Proceedings of the Fort Wayne, IN, USA, Apr. 28-30, pp. 133-137 (IEEE 1992) XP010066443.
Guillard Olivier
Peyresoubes Georges
Richard Patrice
Glenn Kimberly E
Lowe Hauptman & Ham & Berner, LLP
Pascal Robert
Thales
LandOfFree
Compact power-agile filter, particularly for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compact power-agile filter, particularly for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compact power-agile filter, particularly for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4193860