Tunable balun
AssigneeMarvell World Trade Ltd.
InventorsLuca Fanori, Rinaldo Castello
Life of this patent
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Abstract
A system includes a balun, a power monitoring circuit, a first circuit, and a second circuit. The balun includes a first inductor to receive an input and a second inductor to couple the input to a load. The power monitoring circuit is configured to monitor an amount of power being delivered to the load when the input is coupled to the load. The first circuit is configured to couple an entire of the second inductor to the first inductor when a first power is delivered to the load. The second circuit is configured to couple a portion of the second inductor to the first inductor when a second power that is less than the first power is delivered to the load.
Claims13
A system comprising:
- a balun including a first inductor to receive an input and a second inductor to couple the input to a load;
- a power monitoring circuit configured to monitor an amount of power being delivered to the load when the input is coupled to the load;
- a first circuit configured to couple an entire of the second inductor to the first inductor when a first power is delivered to the load;
- and
- a second circuit configured to couple a portion of the second inductor to the first inductor when a second power that is less than the first power is delivered to the load.
A method comprising:
- coupling an input to a first inductance component of a balun;
- coupling the input to a load via a second inductance component of the balun;
- selecting, using a first circuit, an entire of the second inductance component in response to an amount of power delivered to the load being greater than a predetermined threshold;
- and
- selecting, using a second circuit, a portion of the second inductance component in response to the amount of power delivered to the load being less than or equal to the predetermined threshold.
Dependencies are inferred from the claim text.