A low power low noise amplifier employing negative feedback and current reuse techniques

Jafarnejad, Roya; Jannesari, Abumoslem; Nabavi, Abdolreza; Sahafi, Ali

doi:10.1016/j.mejo.2015.12.011

Cited by 31 publications

(18 citation statements)

References 23 publications

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“…Feedback techniques have been used in LNA design and have been reported in the literature. Some of the prominent LNA topologies with feedback techniques can be found in [37,38,47,[49][50][51][52][53][54]. The LNA feedback techniques include negative feedback [37], active shunt feedback [38,47,49,51], resistive feedback [50], multiple feedback loops [52], positive feedback [53], and double feedback [54].…”

Section: Proposed Low Noise Amplifier Topologymentioning

confidence: 99%

“…Hence, energy-efficient circuits are the need of the hour. Some of the LNA designs concentrating on low power technology are reported in [31][32][33][34][35][36][37][38][39][40][41]. Two LNAs each operating with 0.4 mW ultra-low-power is reported in [31,32].…”

Section: Introductionmentioning

confidence: 99%

“…In [33], resistive shunt feedback and series inductive peaking in the feedback loop is proposed. Short channel output conductance enhancement through body effect and negative feedback with current reuse is employed to design low power LNAs in [1,36,37] respectively. Another 0.4 mW LNA with tunable active shunt feedback is proposed in [38] with a slightly higher NF of 4.9 dB when compared to [31,32].…”

Section: Introductionmentioning

confidence: 99%

“…In the sub-6 GHz and UWB frequency range, multi-standard applications overlap the bands, thus making the receiver operation prone to harmonic distortion, cross-modulation, and intermodulation distortion. Further improvement in NF and IIP3 performances of the low power LNAs reported in [31][32][33][34][35][36][37][38][39][40][41] will be beneficial for 5G applications in these frequency bands of interest. Some of the high linear LNA topologies reported in the literature can be found in [42][43][44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

“…From the circuits reported in the literature [31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47], it is clear that low power consumption and other circuit performance parameters such as NF and IIP3 do not go hand-in-hand. Therefore, there is a challenge of processing gigabits of data in low power consumption without compromising linearity.…”

Section: Introductionmentioning

confidence: 99%

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An ultra-low-power low-noise amplifier using cross-coupled positive feedback for 5G IoT applications

2019

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The wireless communication in the next generation is bound to be driven by massive machine-type communication or in other words Internet-of-things (IoT). In the near future, the need for effective communication and higher data processing rates will require IoT devices to support 5G networks. For 5G IoT applications in the ultra-wideband range (3.1-10.6 GHz), the analog receivers must provide both high-performance and energy efficiency simultaneously. This work addresses the demands of 5G IoT analog receivers by proposing an ultra-low-power low noise amplifier (LNA) employing cross-coupled positive shunt feedback. The proposed LNA is designed in UMC 180 nm deep n-well process, and the post-layout characterization is done using Cadence SpectreRF. The proposed design achieves a peak gain of 9.94 dB and a noise figure of 3.2-1.086 dB along the usable bandwidth of 3.2-9.625 GHz while consuming an ultra-low-power of 493 µW from a 1-V power supply. The maximum input-referred third-order intercept point of 8.81 dBm is attained for an input signal at 2.4 GHz and the interferer as close as 2.425 GHz. The LNA consumes a minimal layout area of only 676.2 µm × 350.7 µm. The proposed LNA has the better figure-of-merit while consuming almost 50% less power than the recently reported sub-mW LNA in literature.

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Section: Proposed Low Noise Amplifier Topologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An ultra-low-power low-noise amplifier using cross-coupled positive feedback for 5G IoT applications

2019

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A low‐power wideband LNA exploiting current‐reuse and noise cancelation techniques

Khanehbeygi

Jafarnejad

Koozehkanani

et al. 2022

Circuit Theory & Apps

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This paper presents an inductorless low-power wideband Low Noise Amplifier (LNA) in TSMC 0.18 μm CMOS technology. The proposed LNA is based on the Common-Gate (CG) topology, which consists of three consecutive stages: CG, Common-Source (CS), and Collector stage. The CG and CS configurations are responsible for providing the wideband input impedance matching and the majority of the gain, respectively. The overall performance of the LNA has been improved by applying noise cancelation, capacitive-peaking, and current reuse techniques. Unlike the conventional structure, the CG and CS sections' noise is canceled by utilizing a novel noise-canceling mechanism, simultaneously. Furthermore, with the capacitive-peaking technique, the voltage gain drop across hi gher frequencies is prevented, and thus, the bandwidth of the structure is improved. The trade-off between power consumption and input impedance has been dramatically resolved by employing the current reuse technique in the CG stage. Post-layout simulation results of the presented noise-canceling LNA demonstrate a Noise Figure (NF) of 2.19-2.58 dB and a maximum voltage gain of 19.84 dB with a À3 dB bandwidth of 0.2-2.85GHz. The simulated input/output matching (i.e., S11/S22) is better than À14.73/À19.43 dB in the entire bandwidth. Additionally, Input Third Intercept Point (IIP3) of À4.56 dBm is achieved. The results are gained by consuming only 2.87 mW under a supply voltage of 1.2 V and occupying a 0.0429 mm 2 of die area.

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A Feed-Forward Gain Enhancement Technique in a Narrow-Band Low Noise Amplifier Using Active Inductor

Prameela

Daniel

2022

Lecture Notes in Electrical Engineering

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A low power low noise amplifier employing negative feedback and current reuse techniques

Cited by 31 publications

References 23 publications

An ultra-low-power low-noise amplifier using cross-coupled positive feedback for 5G IoT applications

An ultra-low-power low-noise amplifier using cross-coupled positive feedback for 5G IoT applications

A low‐power wideband LNA exploiting current‐reuse and noise cancelation techniques

A Feed-Forward Gain Enhancement Technique in a Narrow-Band Low Noise Amplifier Using Active Inductor

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