Pillsbury Winthrop Shaw Pittman LLP
Low pass filter incorporating coupled inductors to enhance stop band attenuation
The present invention relates to a low pass filter incorporating coupled inductors to enhance stop band attenuation. In one embodiment, the coupled inductors are provided along with various capacitors to provide for superior performance within a smaller surface area of a semiconductor or ceramic integrated device. In a further specific embodiment, the capacitors are formed on an integrated device within an area on which entirely intertwined inductors are formed. In another embodiment, at least one further pair of coupled inductors is included to create additional frequency attenuation notches, as well as a wide stop-band.
California Micro Devices
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Yupeng Wenjiang Wang-Chang Albert Rong
Chen Zeng Gu Liu