Spatial power combining mechanism (SPCM) for the generation and amplification of electromagnetic radiation
First Claim
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1. An apparatus, comprising:
- a power divider dividing input power, inputted on the power divider, into a plurality of portions;
a spatial power combiner; and
amplifiers coupled to the power divider and the spatial power combiner, wherein;
each amplifier amplifies one of the portions so as to form an amplified output,the spatial power combiner coherently combines the amplified outputs into a combined output, andthe spatial power comprises a waveguide dimensioned such that coupling of the amplified outputs into the waveguide generates the combined output comprising a transverse electric, mode having an order higher than a TE10 mode, or a transverse magnetic mode having an order higher than a TM01 mode, or a transverse electromagnetic mode having an order higher than a fundamental mode.
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Abstract
A Spatial Power Combining Amplifier (SPCA) exhibiting a new concept for the amplification of coherent (e.g., microwave) radiation. A general description of the SPCA a power analysis at various SPCA stages is provided. A successfully tested S-band SPCA example was able to deliver 120 W of power with a gain of 50 dB and 50 percent efficiency.
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Citations
20 Claims
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1. An apparatus, comprising:
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a power divider dividing input power, inputted on the power divider, into a plurality of portions; a spatial power combiner; and amplifiers coupled to the power divider and the spatial power combiner, wherein; each amplifier amplifies one of the portions so as to form an amplified output, the spatial power combiner coherently combines the amplified outputs into a combined output, and the spatial power comprises a waveguide dimensioned such that coupling of the amplified outputs into the waveguide generates the combined output comprising a transverse electric, mode having an order higher than a TE10 mode, or a transverse magnetic mode having an order higher than a TM01 mode, or a transverse electromagnetic mode having an order higher than a fundamental mode. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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7. An apparatus, comprising:
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a power divider dividing input power, inputted on the power divider, into a plurality of portions, a spatial power combiner; amplifiers coupled to the power divider and the spatial power combiner, wherein; each amplifier amplifies one of the portions so as to form an amplified output, the spatial power combiner coherently combines the amplified outputs into a combined output, and the amplified outputs are combined in free space inside the waveguide; and input couplers and output couplers, wherein, each of the input couplers couples one of the amplifiers to the power divider, each of the output couplers couples one of the amplifiers to the spatial power combiner, the input couplers and output couplers are designed and tuned so as to provide near unity coupling, and the input couplers and output couplers are each independently selected from at least one member chosen from a coupling iris, a mode converter, a magnetic loop, an electric capacitive probe, and an antenna.
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20. A method of fabricating an apparatus, comprising:
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coupling amplifiers coupled to a power divider and a spatial power combiner, wherein; the power divider divides input power, inputted on the power divider, into a plurality of portions, each amplifier amplifies one of the portions so as to form an amplified output, and the spatial power combiner coherently combines the amplified outputs into a combined output, and the spatial power combiner comprises a waveguide dimensioned such that coupling of the amplified outputs into the waveguide generates the combined output comprising a transverse electric, mode having an order higher than a TE10 mode, or a transverse magnetic mode having an order higher than a TM01 mode, or a transverse electromagnetic mode having an order higher than a fundamental mode.
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Specification