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- W3131632681 abstract "This letter presents a multiband switchable low-noise amplifier (LNA) in the 0.1- μm GaAs pHEMT process. Employing a new varactor-based tunable network as the interstage matching circuit, the operation bands can be tuned consecutively and cover the 5G millimeter-wave frequency bands N257/N260. The proposed tunable structure functions well without sacrificing noise performance or increasing dc consumption and chip area. In the entire operation band from 26.5 to 41 GHz, the LNA achieves a small-signal gain of over 24 dB and a noise figure (NF) of less than 2.9 dB. The measured result shows a small-signal gain of 25.1 dB/27.7 dB and an NF of 2.4 dB/2.8 dB at 28 GHz/39 GHz. The measured input 1-dB compression point (IP <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>1dB</sub> ) is -18.3 dBm/-17 dBm at 28 GHz/39 GHz. The measured input-referred intercept point (IIP <sub xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink>3</sub> ) is -8.8 dBm/-8.5 dBm at 28 GHz/39 GHz. The LNA has a chip size of 1.6 mm ×1 mm, and the total power consumption is 74 mW. To the best of our knowledge, the proposed LNA is the state-of-the-art Ka-band switchable LNA and has similar performance compared with single-band LNAs using the same technology." @default.
- W3131632681 created "2021-03-01" @default.
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- W3131632681 date "2021-04-01" @default.
- W3131632681 modified "2023-10-14" @default.
- W3131632681 title "A <i>Ka</i>-Band Switchable LNA With 2.4-dB NF Employing a Varactor-Based Tunable Network" @default.
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- W3131632681 doi "https://doi.org/10.1109/lmwc.2021.3059655" @default.
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