A Narrow-band 8.7 GHz SiGe HBT LNA with a Passive Frequency Selective Feedback
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Sige Hbt
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AbstractThis paper presents a low noise amplifier (LNA) with differential output using a passive frequency selective feedback. The introduced feedback stabilizes the amplifier at lower frequencies and improves the gain in the desired frequency band. The LNA consists of two stages. Additionally, a buffer at the output is added for measurements. The amplifier was implemented in a 0.35 μm SiGe technology. For measurements the LNA was bonded to a substrate. A peak gain of 28.1 dB and a minimum noise figure of 2.2 dB at a supply voltage of 3 V were achieved.
2019 ◽
Vol 8
(9)
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pp. 1636-1642
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2020 ◽
Vol 9
(2)
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pp. 272
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2021 ◽
Vol 18
(4)
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pp. 1327-1330
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2013 ◽
Vol 22
(02)
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pp. 1250088
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