Design and optimisation of a cascode low noise amplifier (LNA) using MOST scattering parameters and g&lt;inf&gt;m&lt;/inf&gt;/I&lt;inf&gt;D&lt;/inf&gt; ratio

Castagnola, Juan Luis; García-Vázquez, Hugo; Dualibe, Fortunato

doi:10.1109/lascas.2018.8399978

Cited by 5 publications

(3 citation statements)

References 10 publications

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“…Thanks to the generated LUTs, the need for iterative simulations is removed and near-first-time success can be achieved to cover the design requirements. Although the

methodology was born in the field of low-frequency analog integrated circuit design, significant efforts have been made to integrate this methodology with radiofrequency (RF) and microwave (MW) circuit design [ 14 , 20 , 21 , 22 , 23 ], demonstrating the implementation of very-low-power RFICs. However, these proposals are limited to operating frequencies of only 2.4 GHz, with no

-based LNA designs above an operating frequency of 5 GHz reported.…”

Section: Introductionmentioning

confidence: 99%

A gm/ID-Based Low-Power LNA for Ka-Band Applications

Galante-Sempere,

Torres-Clarke,

del Pino

et al. 2024

Sensors

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This article presents the design of a low-power low noise amplifier (LNA) implemented in 45 nm silicon-on-insulator (SOI) technology using the gm/ID methodology. The Ka-band LNA achieves a very low power consumption of only 1.98 mW andis the first time the gm/ID approach is applied at such a high frequency. The circuit is suitable for Ka-band applications with a central frequency of 28 GHz, as the circuit is intended to operate in the n257 frequency band defined by the 3GPP 5G new radio (NR) specification. The proposed cascode LNA uses the gm/ID methodology in an RF/MW scenario to exploit the advantages of moderate inversion region operation. The circuit occupies a total area of 1.23 mm2 excluding pads and draws 1.98 mW from a DC supply of 0.9 V. Post-layout simulation results reveal a total gain of 11.4 dB, a noise figure (NF) of 3.8 dB, and an input return loss (IRL) better than 12 dB. Compared to conventional circuits, this design obtains a remarkable figure of merit (FoM) as the LNA reports a gain and NF in line with other approaches with very low power consumption.

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“…Thanks to the generated LUTs, the need for iterative simulations is removed and near-first-time success can be achieved to cover the design requirements. Although the

-based LNA designs above an operating frequency of 5 GHz reported.…”

Section: Introductionmentioning

confidence: 99%

A gm/ID-Based Low-Power LNA for Ka-Band Applications

Galante-Sempere,

Torres-Clarke,

del Pino

et al. 2024

Sensors

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“…The characterization of an LNA common source (CS) stage in terms of the S-parameters, the gm/I D ratio and the transistor's size, was introduced for the first time in [29]. In [30], this approach is extended to the whole design of an LNA. Based on these authors' previous works, this paper presents a comprehensive description of such a methodology for RF circuit design.…”

Section: Introductionmentioning

confidence: 99%

A Novel Design and Optimization Approach for Low Noise Amplifiers (LNA) Based on MOST Scattering Parameters and the gm/ID Ratio

et al. 2020

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This work presents a new design methodology for radio frequency (RF) integrated circuits based on a unified analysis of the scattering parameters of the circuit and the gm/ID ratio of the involved transistors. Since the scattering parameters of the circuits are parameterized by means of the physical characteristics of transistors, designers can optimize transistor size and biasing to comply with the circuit specifications given in terms of S-parameters. A complete design of a cascode low noise amplifier (LNA) in MOS 65 nm technology is taken as a case study in order to validate the approach. In addition, this methodology permits the identification of the best trade-off between the minimum noise figure and the maximum gain for the LNA in a very simple way.

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“…Multistage LNA is picked to achieve higher gain. Cascode configuration, g m boosting, capacitive cross‐coupling (CCC), shunt resistive feedback, dual inductive peaking techniques, active load implementation, supply voltage optimization, number of fingers adjustment, and positive feedback design have been employed to get optimum gain in LNAs. NF of LNA is depended on the first stage of multistage LNA.…”

Section: Introductionmentioning

confidence: 99%

Survey on parameter optimization of mobile communication band low noise amplifier design

Roobert¹,

Rani²

2019

Int J RF Microw Comput Aided Eng

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A comparative study on recent works on low noise amplifiers (LNAs) designed to be operated at mobile communication band is performed in this article. Here, specifications of different generations of mobile communication are listed, which are considered to classify recent works on LNAs. Even though gain and noise figure (NF) are the primary parameters of LNA; other parameters like power, linearity, bandwidth, and area also get importance. Due to this, optimization techniques handpicked for all those parameters are discussed. The inverse relation between gain and NF is exploited to achieve low noise and high gain together. While increasing the gain, power consumption is increased by drain current. Each LNA is found as good in terms of gain and other parameters to satisfy the requirements. The figure of merit is opted to find the performance of each LNA, and the comparison is performed. The best parameters reported in the comparison are 31.53 dB of gain, 0.7 dB of NF, 0.03 mw of power consumption, 18.14 dBm of third-order input intercept point (IIP3), 24 GHz bandwidth and 0.0052 mm 2 of area at different frequencies and technology nodes. In this survey, as per the optimized FoM for mobile communication, crosscoupled common gate differential LNA, which was designed to be operated at 0.3 to 2.96 GHz gives better results among CMOS LNAs.

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Design and optimisation of a cascode low noise amplifier (LNA) using MOST scattering parameters and g<inf>m</inf>/I<inf>D</inf> ratio

Cited by 5 publications

References 10 publications

A gm/ID-Based Low-Power LNA for Ka-Band Applications

A gm/ID-Based Low-Power LNA for Ka-Band Applications

A Novel Design and Optimization Approach for Low Noise Amplifiers (LNA) Based on MOST Scattering Parameters and the gm/ID Ratio

Survey on parameter optimization of mobile communication band low noise amplifier design

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