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US 2019/0097608 A1Published application
Multi-band filter architectures
AssigneeQUALCOMM Incorporated
InventorsTimothy Donald GATHMAN, Lai Kan LEUNG, Chirag Dipak PATEL, Rajagopalan RANGARAJAN
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Abstract
Certain aspects of the present disclosure relate to multi-band filter architectures and methods for filtering signals using the multi-band filter architectures. One example multi-band filter generally includes a transconductance-capacitance (gm-C) filter and a reconfigurable load impedance coupled to an output of the gm-C filter, the reconfigurable load impedance comprising a first gyrator circuit coupled to a second gyrator circuit.
Claims30
A multi-band filter comprising:
- a transconductance-capacitance (gm-C) filter;
- and
- a reconfigurable load impedance coupled to an output of the gm-C filter, the reconfigurable load impedance comprising a first gyrator circuit coupled to a second gyrator circuit.
A method of processing an input signal, comprising:
- configuring a multi-band filter to have a first configuration, the multi-band filter comprising a transconductance-capacitance (gm-C) filter and a reconfigurable load impedance coupled to an output of the gm-C filter, the reconfigurable load impedance comprising a first gyrator circuit coupled to a second gyrator circuit;
- and
- filtering the input signal with the multi-band filter in the first configuration.
Dependencies are inferred from the claim text.