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- W4385192394 abstract "A 305-GHz power amplifier (PA) fabricated in a 130-nm SiGe HBT BiCMOS technology with HBT <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$f_{t}/f_{max}=350/450$</tex> GHz is presented. The PA employs 4 cascode amplification stages with capacitive feedback between the collector of common base stage and the base of common emitter stage that increases power gain of each stage by ~4 dB and a 4-way power combiner at the output. The PA achieves a measured Psat of 7.5 dBm and OP <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>1dB</inf> of 4.5 dBm at 290 GHz. The design reaches a peak small signal gain of 14.5 dB at 305 GHz. The circuit consumes 1008 mW DC power from a 4-V supply and achieves a PAE <inf xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>max</inf> of 0.39%. The PA exhibits the highest Psat and OP1dB at 290 GHz, and the highest small signal gain at 305 GHz among the PA's fabricated using SiGe HBT's with <tex xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>$f_{max}$</tex> less than 500 GHz." @default.
- W4385192394 created "2023-07-25" @default.
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- W4385192394 date "2023-06-11" @default.
- W4385192394 modified "2023-09-23" @default.
- W4385192394 title "305-GHz Cascode Power Amplifier Using Capacitive Feedback Fabricated Using SiGe HBT's with f<sub>max</sub> of 450 GHz" @default.
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- W4385192394 doi "https://doi.org/10.1109/rfic54547.2023.10186143" @default.
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