A 1.4-dB-NF variable-gain LNA with continuous control for 2-GHz-band mobile phones using InGaP emitter HBTs

Aoki, Yuuichi; Fujii, Masahiro; Ohkubo, Satoshi; Yoshida, Shinji; Niwa, T.; Miyoshi, Yosuke; Dodo, H.; Goto, Norio; Hida, H.

doi:10.1109/mwsym.2001.966890

Cited by 13 publications

(4 citation statements)

References 3 publications

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“…It also presents good stability factor for all gain values with some margin, due to its single-stage configuration, differently from recent works compared in this paper, including topologies for wideband applications with the same idea of gain variation or using different technologies as HBTs [1], but not covered in this paper.…”

Section: Discussionmentioning

confidence: 86%

A CMOS continuous variable gain low-noise amplifier(LNA) for WLAN applications

Ximenes

Swart

2011

Proceedings of the 24th Symposium on Integrated Circuits and Systems Design

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In order to attend the exponential growth of wireless communication in portable device market, a demand for flexible RF transceivers has become a major research interest, including those with the ability of communicating in an unpredictable environment, from very weak to highly powered signal levels without losing its functionality. In this paper we present a CMOS Continuous Variable Gain Low-Noise Amplifier (CVG-LNA) 2.4GHz ISM band with minimum NF of 1.2dB at highest gain mode, ICP of -6dBm at lowest gain mode, and voltage gain variation of 30dB, from 34dB to 4dB, while consuming 12mW under 1.8V power supply.

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Section: Discussionmentioning

confidence: 86%

A CMOS continuous variable gain low-noise amplifier(LNA) for WLAN applications

Ximenes

Swart

2011

Proceedings of the 24th Symposium on Integrated Circuits and Systems Design

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“…The basic function of the LNA is to provide signal amplification while adding as little noise and distortion possible to improve the overall noise figure and linearity of the front-end. In addition, variable gain LNA (VGLNA) maximizes the overall dynamic range requirements for receiver [2].…”

Section: Introductionmentioning

confidence: 99%

A Fully Integrated 5.2-GHz CMOS Variable Gain LNA for 802.11a WLAN

Duan

Kang

2012

AMR

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“…LNAs using CMOS process have demonstrated good gain and noise per-formance in the 5-6 GHz ISM band [I-31. Variable gain low noise amplifiers (VGLNAs) were realized in order to maximize the overall system dynamic range [4]. A 1.4-dB NF variable-gain low noise amplifier using InGaP emitter HBT has been presented in [4], but GaAs-based chip is difficult to integrate with CMOS baseband circuits.…”

Section: Introductionmentioning

confidence: 99%

“…Variable gain low noise amplifiers (VGLNAs) were realized in order to maximize the overall system dynamic range [4]. A 1.4-dB NF variable-gain low noise amplifier using InGaP emitter HBT has been presented in [4], but GaAs-based chip is difficult to integrate with CMOS baseband circuits. A variable gain cascode amplifier using SiGe HBT technology has been demonstrated in [SI, however, the cascode topology is not suitable for variable-gain low noise and low voltage application [7].…”

Section: Introductionmentioning

confidence: 99%

A low-voltage fully-integrated 4.5-6-GHz CMOS variable gain low noise amplifier

Tsai

Liu

Lin

et al.

33rd European Microwave Conference Proceedings (IEEE Cat. No.03EX723C)

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Absrract -A 4.54 GHz CMOS low-voltage wideband variable gain low noise amplifier (VGLNA) with wide gain-control range has been demonstrated in this paper. The VGLNA, operating at a supply voltage as low as 1 V, achieves a small signal gain of 20 dB and 3-dB bandwidth of 1.5 GHz with good return losses. The noise figure is 3.5 dB at 5.5 GHz. A figure-of-merit for gain eficiency (Gain/PDc) of 1.23 dB/mW is achieved, which is believed to be the hest among reported results for a CMOS VGLNA operating at multi-GHz frequency.

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A 1.4-dB-NF variable-gain LNA with continuous control for 2-GHz-band mobile phones using InGaP emitter HBTs

Cited by 13 publications

References 3 publications

A CMOS continuous variable gain low-noise amplifier(LNA) for WLAN applications

A CMOS continuous variable gain low-noise amplifier(LNA) for WLAN applications

A Fully Integrated 5.2-GHz CMOS Variable Gain LNA for 802.11a WLAN

A low-voltage fully-integrated 4.5-6-GHz CMOS variable gain low noise amplifier

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