Vestigial loads for acoustic resonators
AssigneeAvago Technologies International Sales Pte. Limited
InventorRoger Fratti
Life of this patent
Estimating the term…
Abstract
Novel tools and techniques are provided for implementing a filter circuit array, and more particularly methods, systems, and apparatuses are provided for implementing a filter circuit array in a semiconductor package or a chip package. In an embodiment, a filter array can include a first filter circuit and a first resistive circuit connected to the first filter circuit. In various cases, when the first filter circuit is operational, the first filter circuit is configured to transmit or receive one or more first signals and the first resistive circuit is unterminated. In other cases, when the first filter circuit is not operational, the first filter circuit is configured to terminate via the first resistive circuit.
Claims20
A filter circuit array comprising:
- a first filter circuit formed on a substrate;
- and
- a first resistive circuit formed on the substrate and connected to the first filter circuit;
- wherein the first resistive circuit is unterminated, and wherein a first impedance of the first resistive circuit is about a complex conjugate of a second impedance of the first filter circuit.
A filter circuit array comprising:
- a first filter circuit formed on a substrate;
- a first resistive circuit formed on the substrate and connected to the first filter circuit;
- and
- a second resistive circuit formed on the substrate;
- wherein the first resistive circuit is unterminated, and wherein the second resistive circuit is connected to a same side of the first filter circuit as the first resistive circuit.
A filter circuit array comprising:
- a first filter circuit formed on a substrate;
- and
- a first resistive circuit formed on the substrate and connected to the first filter circuit;
- wherein the first resistive circuit is unterminated, and wherein the first resistive circuit comprises a first connector formed on the substrate and connected to the first filter circuit and a first end of the first resistive circuit and a second connector formed on the substrate and located on a second end opposite the first end of the first resistive circuit.
A semiconductor device, comprising:
- a first substrate comprising:
- a first filter circuit;
- and
- a first resistive circuit connected to the first filter circuit;
- wherein, when the first filter circuit is in use, the first filter circuit is configured to transmit or receive one or more first signals between an antenna and a transceiver and the first resistive circuit is unterminated;
- wherein, when the first filter circuit is not in use, the first filter circuit is connected to a first ground via the first resistive circuit;
- and
- wherein a first impedance of the first resistive circuit is about a complex conjugate of a second impedance of the first filter circuit.
A method of using a filter circuit array, the method comprising:
- providing a first substrate comprising:
- a filter circuit array comprising:
- a first filter circuit;
- and
- a first resistive circuit connected to the first filter circuit, wherein a first impedance of the first resistive circuit is about a complex conjugate of a second impedance of the first filter circuit;
- and
- selectively configuring the first filter circuit in either of a first configuration or a second configuration, by:
- for the first configuration, leaving the first resistive circuit unterminated;
- and
- for the second configuration, connecting the first filter circuit to ground via the first resistive circuit.
Dependencies are inferred from the claim text.