TUNABLE ANTENNA SYSTEM
First Claim
Patent Images
1. A tunable antenna system comprising:
- an antenna structure;
a dynamic capacitive loading device coupled to the antenna structure, wherein the dynamic capacitive loading device has a variable capacitive load that depends upon voltage provided on a voltage input of the dynamic capacitive loading device;
wherein, in operation, voltage provided by the voltage source is adjusted in accordance with a performance metric to tune the antenna.
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Abstract
A technique for tuning an antenna may include one or more of the following: working against a ground plane, utilizing the third dimension by alternating layers on a substrate, integrating an inductive short stub in the substrate to improve port matching, and making a tuning port available for capacitive loading and resonance modification.
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Citations
20 Claims
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1. A tunable antenna system comprising:
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an antenna structure;
a dynamic capacitive loading device coupled to the antenna structure, wherein the dynamic capacitive loading device has a variable capacitive load that depends upon voltage provided on a voltage input of the dynamic capacitive loading device;
wherein, in operation, voltage provided by the voltage source is adjusted in accordance with a performance metric to tune the antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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designing an antenna without loading;
providing an initial capacitive load;
repeating until an acceptable optimization threshold is reached;
adjusting capacitive loading;
optimizing response with capacitive loading. - View Dependent Claims (14)
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15. A method comprising:
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setting a tuning voltage to an initial value, wherein tuning voltage impacts antenna performance;
quantifying performance metric data associated with one or more signals, wherein performance metric data is associated with the antenna performance and the one or more signals;
estimating, using the performance metric data, a tuning voltage that would improve the antenna performance;
varying tuning voltage in accordance with the estimated tuning voltage to improve the antenna performance. - View Dependent Claims (16, 17, 18)
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19. A system comprising:
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a radio receiver;
a performance quantification engine coupled to the radio receiver;
a tuning voltage calculator coupled to the performance quantification engine;
wherein, in operation;
the radio receiver receives a signal from an antenna;
the radio receiver sends performance metric data from the signal to the performance quantification engine;
the performance quantification engine provides a performance control signal derived from the performance metric data to the tuning voltage calculator;
the tuning voltage calculator estimates a tuning voltage that, when provided to a dynamic capacitive loading device coupled to the antenna, would improve performance of the antenna. - View Dependent Claims (20)
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Specification