Highly selective passive filters using low-Q planar...

Details Highly selective passive filters using low-Q planar... Highly selective passive filters using low-Q planar...

2008-04-14

2011-11-15

Pascal, Robert (Department: 2817)

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

C333S167000, C333S177000

Reexamination Certificate

active

08058950

ABSTRACT:
A highly selective frequency filter is created from lossy components such as found in standard integrated circuit technologies, including particularly CMOS technologies, without the use of active loss cancellation circuitry. The filter configuration is based on using inductively coupled planar inductors for introducing a mutual inductance factor that advantageously alters the frequency response of the filter.

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patent: 7002434 (2006-02-01), Lin et al.
Nguyen et al , “Si IC Compatible Inductors and LC Passive Filter”, Aug. 1990, IEEE Journal of Solid State Circuits, vol. 25, No. 4, pp. 1028-1031.

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