Adaptive impedance matching module (AIMM) control architectures
AssigneeBlackBerry Limited
InventorsWilliam E. McKinzie, Heinz Bachmann, Gregory Mendolia
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Abstract
A system that incorporates teachings of the present disclosure can include, for example, determining from nodal voltages sampled at an input port of a matching network an impedance of a variable load coupled to an output port of the matching network, generating at least one control signal according to the nodal voltage, and tuning the matching network with the at least one control signal. Additional embodiments are disclosed.
Claims22
An apparatus, comprising:
- a matching network operable to perform operations comprising reducing a magnitude of a signal reflection at a port of the matching network,
- wherein the matching network comprises one or more controllable variable reactive elements, and
- wherein a controller is operable to perform operations comprising determining an impedance of a variable load coupled to the matching network according to a sample of at least one of phase information or magnitude information or both derived from signal information sampled at a port of the matching network, and engaging in at least one cycle of a coarse tuning process according to the determined impedance of the variable load by generating one or more control signals to tune one or more reactances of the one or more controllable variable reactive elements.
A computer-readable storage medium, comprising computer instructions that, when executed by one or more processors, causes the one or more processors to perform operations comprising:
- determining an impedance of a variable load coupled to a matching network based on a reflection information;
- and
- coarse tuning one or more controllable variable reactive elements of the matching network with one or more control signals determined according to the determined impedance of the variable load.
A method, comprising:
- determining from nodal voltages sampled at an input port of a matching network an impedance of a variable load coupled to an output port of the matching network, wherein the matching network comprises one or more controllable variable reactive elements;
- generating at least one control signal according to the nodal voltages;
- and
- tuning the matching network with the at least one control signal.
Dependencies are inferred from the claim text.