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US 12,700,844 B2Granted
Self-tuning transmitter combiner comprising a plurality of filters combining with a reactive element at a junction and including a control unit for tuning the filters and reactive element
AssigneeNorsat International Inc.
InventorMichael Jerome Macki
Life of this patent
Estimating the term…
Abstract
A self-tuning, resonant cavity transmitter combiner joins multiple RF transmitters and combines their signals onto a single transmission line. An additional tuning element is added to the junction of the signal paths to overcome the bandwidth limitations of the transmission lines joining the signal paths. An algorithm was developed to optimize the RF performance of the combiner by sampling the RF signals at various points in the RF circuit.
Claims18
A self-tuning transmitter combiner, the combiner comprising:
- (a) a junction for combining a plurality of signals transmitted along a plurality of signal paths comprising a plurality of filters, respectively, the junction comprising a reactive element;
- and
- (b) a computer-implemented control unit operable to tune the plurality of filters in response to a plurality of carrier frequencies of the plurality of signals, respectively, the control unit being further operable to tune the reactive element in response to a plurality of insertion gains respectively associated with the plurality of signal paths, said plurality of insertion gains comprising a lowest insertion gain, the reactive element being tuned such that said lowest insertion gain is maximized.
A method of tuning a combiner, the method comprising:
- (a) by a computer-implemented control unit, tuning a plurality of filters of a plurality of signal paths in response to a plurality of carrier frequencies of a plurality of signals being transmitted along the plurality of signal paths, respectively;
- and
- (b) by the computer-implemented control unit, tuning a reactive element of a junction for combining the plurality of signals, the reactive element being tuned in response to a plurality of insertion gains respectively associated with the plurality of signal paths, said plurality of insertion gains comprising a lowest insertion gain, the reactive element being tuned such that said lowest insertion gain is maximized.
A self-tuning transmitter combiner, the combiner comprising:
- (a) means for tuning a plurality of filters of a plurality of signal paths in response to a plurality of carrier frequencies of a plurality of signals being transmitted along the plurality of signal paths, respectively;
- and
- (b) means for tuning a reactive element of a junction for combining the plurality of signals, the reactive element being tuned in response to a plurality of insertion gains respectively associated with the plurality of signal paths, said plurality of insertion gains comprising a lowest insertion gain, the reactive element being tuned such that said lowest insertion gain is maximized.
Dependencies are inferred from the claim text.