Wideband, minimum-rating filters and multicouplers for power amplifiers
First Claim
1. A method for coupling an input signal to a load through an electronic network, said network having n components, an input, and an output and said output being coupled to the load, said method comprising:
- the n steps of selecting each of the n components of said network so that the input of the network has a minimum-rating characteristic, whereby a specified amount of signal power is delivered to the load at any frequency within a specified frequency band with input voltage and input current no larger than specified ratings.
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Abstract
A method and a circuit for power amplification over a wide frequency range based upon the use of minimum-rating filters or matching networks, negative-component signal processing, and single or multiple amplifiers. The filters and matching networks are preferably designed to minimize the required ratings of the amplifier(s) driving them. The signal processor or generator preferably uses negative components to produces a driving signal that is compensated for the ripple in the filter, matching network, and load. The outputs of multiple amplifiers optimized for different frequency ranges can be combined into a single load with flat frequency response, resistive loads presented to the amplifiers, and no inherent power loss in the combining network.
169 Citations
22 Claims
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1. A method for coupling an input signal to a load through an electronic network, said network having n components, an input, and an output and said output being coupled to the load, said method comprising:
- the n steps of selecting each of the n components of said network so that the input of the network has a minimum-rating characteristic, whereby a specified amount of signal power is delivered to the load at any frequency within a specified frequency band with input voltage and input current no larger than specified ratings.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for amplifying multiple signals and delivering amplified signals to a load through a system, said system having one or more inputs and a single output, the system comprising:
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(a) multiple amplifiers and (b) multiple output networks;
the system being organized so that;
(i) each system inputs is coupled to one individual amplifiers, (ii) the output of each amplifier is coupled to an network, (iii) the outputs of the output networks are coupled to the system output, and (iv) the system output is coupled to the load;
said method comprising for each network the n steps of selecting each of the n components of said network so that the input of each network has a minimum-rating characteristic, and the passbands of each network being separated so that one network does not significantly load another network significantly;
whereby each amplifier delivers a specified amount of signal power to the load at any frequency within a specified frequency band with input voltage and input current no larger than specified ratings. - View Dependent Claims (16, 17, 18, 19)
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20. A method for coupling an input signal to a load through an electronic network, said network having n components, one or more inputs, and an output and said output being coupled to the load, said method comprising:
the n steps of selecting each of the n components of said network so that the input of the network has a minimum-rating characteristic, whereby a specified amount of signal power is delivered to the load at any frequency within a specified frequency band with input voltage and input current no larger than specified ratings.
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21. A method for coupling an input signal to a load through an electronic network and delivering a specified amount of signal power to the load at any frequency within a specified frequency band, said network having n components, an input, and an output and said output being coupled to the load, said method comprising the n steps of:
- selecting each of the n components of said network so that the input of the network has a minimum-rating characteristic, whereby said specified amount of signal power is delivered to the load at any frequency within a specified frequency band with input voltage and input current no larger than specified ratings.
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22. A method for delivering multiple signals to a load through a system, said system having one or more system inputs and a system output, said system comprising multiple output networks;
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the system being organized so that;
(i) each system input is coupled to an-output-network input, (ii) the output-network outputs are coupled to the system output, and (iii) the system output is coupled to the load;
said method comprising for each output network the n steps of selecting each of the n components of said network so that the input of each network has a minimum-rating characteristic, and the passbands of each network being separated so that one network does not significantly load another network significantly;
whereby each amplifier delivers a specified amount of signal power to the load at any frequency within a specified frequency band with input voltage and input current no larger than specified ratings.
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Specification