Combined linear power amplifying device and method
First Claim
1. A combined linear power amplifying device comprising:
- a power divider module which has a plurality of paths connected respectively between an input terminal and a plurality of output terminals and switches connected respectively to each of said output terminals, for dividing power of an RF signal input to said power divider module and respectively outputting said divided power to said output terminals, wherein each of said plurality of paths includes a plurality of sub-paths having a predetermined impedance, where said predetermined impedance of sub-paths nearest to said input terminal is less than said predetermined impedance of sub-paths nearest to said plurality of output terminals;
a power combiner module which has paths connected respectively between a plurality of input terminals and an output terminal and switches connected respectively to each of said input terminals, for combining power of an RF signal input to the power combiner module and outputting said combined power; and
linear power amplifiers which are connected between said output terminals of said power divider module and said input terminals of said power combiner module, for linearly amplifying said RF signal power divided in said power divider module thereby outputting said linearly amplified signal to said power combiner module, and upon detection of a failed state in one of said linear power amplifiers, said failed amplifier opening a path associated therewith by turning off said corresponding switches in said power divider module and said power combiner module.
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Accused Products
Abstract
A device and a method for combining outputs of a plurality of linear power amplifiers while preventing loss of signals. The combined linear power amplifying device, including: a power divider module which has paths connected respectively between one input terminal and a plurality of output terminals and switches connected respectively to each of the output terminals, for dividing power of a RF signal input to the power divider module and respectively outputting the divided power to the output terminals; a power combiner module which has paths connected respectively between a plurality of input terminals and one output terminal and the switches connected respectively to each of the input terminals, for combining power of a RF signal input to the power combiner module and outputting the combined power; and linear power amplifiers which are connected between the output terminals of the power divider module and the input terminals of the power combiner module, for linearly amplifying the RF signal power-divided in the power divider module thereby outputting the linearly amplified signal to the power combiner module, and upon generation of a failed state of the linear power amplifiers, the failed amplifier opening the path of the affected RF signal by turning off the corresponding switches in said power divider module and said power combiner module.
102 Citations
25 Claims
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1. A combined linear power amplifying device comprising:
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a power divider module which has a plurality of paths connected respectively between an input terminal and a plurality of output terminals and switches connected respectively to each of said output terminals, for dividing power of an RF signal input to said power divider module and respectively outputting said divided power to said output terminals, wherein each of said plurality of paths includes a plurality of sub-paths having a predetermined impedance, where said predetermined impedance of sub-paths nearest to said input terminal is less than said predetermined impedance of sub-paths nearest to said plurality of output terminals; a power combiner module which has paths connected respectively between a plurality of input terminals and an output terminal and switches connected respectively to each of said input terminals, for combining power of an RF signal input to the power combiner module and outputting said combined power; and linear power amplifiers which are connected between said output terminals of said power divider module and said input terminals of said power combiner module, for linearly amplifying said RF signal power divided in said power divider module thereby outputting said linearly amplified signal to said power combiner module, and upon detection of a failed state in one of said linear power amplifiers, said failed amplifier opening a path associated therewith by turning off said corresponding switches in said power divider module and said power combiner module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A combined linear power amplifying device comprising:
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a power divider module for dividing power of an RF signal having an input terminal, a plurality of output terminals, and a plurality of paths connecting said input terminal and said plurality of output terminals, wherein impedance of each of said plurality of paths increases from said input terminal to said plurality of output terminals; a power combiner module for combining power thereof having a plurality of input terminals and an output terminal; a plurality of linear power amplifiers correspondingly connected between each of said output terminals of said power divider module and each of said input terminals of said power combiner module; and a plurality of RF switches respectively connected to input and output terminals of said linear power amplifiers, wherein said linear power amplifiers self diagnose their operation state and open certain of said RP switches corresponding to the generation of a failed state. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of controlling a combined linear power amplifying device which has a power divider module for dividing power of an RF signal, a power combiner module for combining power thereof, and linear power amplifiers connected with RF switches respectively connected to output terminals of said power divider module and input terminals of said power combiner module, comprising the steps of:
self diagnosing linear amplifying operation, turning off said corresponding RF switch upon sensing an abnormal state, if said abnormal state is not sensed then evenly dividing the power of said RF signal to an input terminal of a normal linear power amplifier by opening said RF switch upon said inputted RF signal being power-divided by means of said linear power amplifiers, and if said abnormal state is sensed then reflecting back to an input node a divided RF signal corresponding to said corresponding RF switch.
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22. A method of controlling a combined linear power amplifying device which has a power divider module for dividing power of an RF signal, a power combiner module for combining power thereof, and linear power amplifiers connected with RF switches respectively connected to output terminals of said power divider module and input terminals of said power combiner module, comprising the steps of:
sequentially checking an internal operation state of said linear power amplifiers by a set period, displaying a detection signal that abnormal state is generated in said checking step, accumulatively storing time when the abnormal state is generated therein, closing said RF switch upon said time when the abnormal state is generated and has lasted over the set time, and terminating RF input/output paths of said linear power amplifiers.
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23. A method for controlling a combined linear power amplifying device, comprising the steps of:
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equally dividing power of an RF signal according to the number of output terminals; applying the power divided RF signal to a plurality of linear power amplifiers, wherein each of said linear power amplifiers detects its own state, to disconnect an input/output path upon detection of an abnormal state, so as to inactivate the linear power amplifier in the abnormal state; and combining powers of the RF signals generated from the linear power amplifiers in a normal state. - View Dependent Claims (24, 25)
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Specification