A 3~10GHz High Gain Low Noise Amplifier With Transformer Feedback Technique

Liu, Qihang; Lei, Qianqian; Zhao, Erhu; Gao, Yufei; Zhang, Zhe; Xie, Boyi

doi:10.1109/iceemt56362.2022.9862623

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…This problem has been deeply studied, and different techniques have been used to solve it. In this sense, one of the most used techniques has been inductive degeneration [41][42][43][44][45]. In short, inductive degeneration consists of placing an inductance or transmission line with an inductive effect in the source or emitter (in the case of bipolar transistors) of the transistor that allows the optimal impedances of minimum noise to be brought closer to the desired impedance.…”

Section: Dlna Matching Network Strategy and Designmentioning

confidence: 99%

Differential BroadBand (1–16 GHz) MMIC GaAs mHEMT Low-Noise Amplifier for Radio Astronomy Applications and Sensing

Jimenez-Martin,

Gonzalez-Posadas,

Parra-Cerrada

et al. 2024

Sensors

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A broadband differential-MMIC low-noise amplifier (DLNA) using metamorphic high-electron-mobility transistors of 70 nm in Gallium Arsenide (70 nm GaAs mHEMT technology) is presented. The design and results of the performance measurements of the DLNA in the frequency band from 1 to 16 GHz are shown, with a high dynamic range, and a noise figure (NF) below 1.3 dB is obtained. In this work, two low-noise amplifiers (LNAs) were designed and manufactured in the OMMIC foundry: a dual LNA, which we call balanced, and a differential LNA, which we call DLNA. However, the paper focuses primarily on DLNA because of its differential architecture. Both use a 70 nm GaAs mHEMT space-qualified technology with a cutoff frequency of 300 GHz. With a low power bias Vbias/Ibias (5 V/40.5 mA), NF < 1.07 dB “on wafer” was achieved, from 2 to 16 GHz; while with the measurements made “on jig”, NF = 1.1 dB, from 1 to 10 GHz. Furthermore, it was obtained that NF < 1.5 dB, from 1 to 16 GHz, with a figure of merit equal to 145.5 GHz/mW. Finally, with the proposed topology, several LNAs were designed and manufactured, both in the OMMIC process and in other foundries with other processes, such as UMS. The experimental results showed that the NF of the DLNA MMIC with multioctave bandwidth that was built in the frequency range of the L-, S-, C-, and X-bands was satisfactory.

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Section: Dlna Matching Network Strategy and Designmentioning

confidence: 99%

Differential BroadBand (1–16 GHz) MMIC GaAs mHEMT Low-Noise Amplifier for Radio Astronomy Applications and Sensing

Jimenez-Martin,

Gonzalez-Posadas,

Parra-Cerrada

et al. 2024

Sensors

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show abstract

“…Nowadays, with the increasingly stringent environmental requirements, the traditional transformers with large noise are gradually being phased out of the market. As a result, reducing the noise of transformers has attracted more and more research attention [1]- [3]. Some scholars studied the noise of transformer based on the core of silicon steel sheet with different materials, then it gave the comparison of magnetostriction and noise of several key soft magnetic materials [4].…”

Section: Introductionmentioning

confidence: 99%

Study on electromagnetic performance and noise of transformer using two core materials

Li¹,

Gao²,

Yao³

et al. 2023

International Conference on Optoelectronic Materials and Devices (ICOMD 2022)

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This paper proposes a single-phase three-leg transformer using two core materials. The proposed model is made by using silicon steel for the upper core and amorphous alloy for the lower core. Based on the conventional model using only silicon steel in the core, the proposed model is made by using silicon steel for the upper core and amorphous alloy for the lower core. To highlight the merits of the proposed model, the three-dimensional finite element method (FEM) is used to analyze and compare the performance of the both models, including magnetic flux density distribution, magnetic leakage, displacement and noise. By comparing the results of electromagnetic characteristics, it is found that the proposed model has lower flux density and magnetic leakage. And the vibration noise of the proposed model is further reduced.

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A 3~10GHz High Gain Low Noise Amplifier With Transformer Feedback Technique

Cited by 2 publications

References 7 publications

Differential BroadBand (1–16 GHz) MMIC GaAs mHEMT Low-Noise Amplifier for Radio Astronomy Applications and Sensing

Differential BroadBand (1–16 GHz) MMIC GaAs mHEMT Low-Noise Amplifier for Radio Astronomy Applications and Sensing

Study on electromagnetic performance and noise of transformer using two core materials

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