Design of reconfigurable multi-band low-noise amplifiers for 802.11ah/b/g and DCS-1800 applications

Bisht, Rajani; Akhtar, M. Jaleel; Qureshi, S.

doi:10.1016/j.aeue.2020.153201

Cited by 5 publications

(1 citation statement)

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“…The main reason for this degradation could be the shifted resonance frequency of L 1 and C 1 from 2.4 GHz, resulting from an inaccurate EM simulation of the transformer. Table 1 compares the performance of the proposed LNA to that reported in previous works [10][11][12][13][14]. The figure-of-merit (FoM) is derived in accordance with [15], as follows:…”

Section: Resultsmentioning

confidence: 99%

A Folded Cascode CMOS Low Noise Amplifier with Transformer Feedback

Kim,

Song,

Nam

et al. 2024

J. Electromagn. Eng. Sci

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This study proposes a folded cascode CMOS low noise amplifier (LNA) with transformer feedback, implemented using a 0.13-μm CMOS process for wireless local area network front-end module applications. Compared to a conventional cascode inductive source degeneration LNA (ISDLNA), the folded cascode ISDLNA significantly improved the input-referred third-order intercept point (IIP3) as well as the 1-dB compression point (P1dB) by ensuring a large voltage headroom. Furthermore, the designed LNA also achieved a low noise figure (NF), while also saving the silicon area by magnetically coupling the source and folding inductors. When tested experimentally, the proposed LNA showed an S21 of 11.0 dB and an NF of 2.6 dB, while achieving an <i>S</i><sub>11</sub> of -7 dB at the operating frequency of 2.4 GHz. The measured input P1dB and IIP3 were -5.6 dBm and +2.5 dBm, respectively. The power dissipation was 9.6 mW from a 1.2-V supply voltage.

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