A 90-nm Wideband Merged CMOS LNA and Mixer Exploiting Noise Cancellation

Amer, Mohamed A.; Hegazi, Emad; Ragaie, H.F.

doi:10.1109/jssc.2006.889374

Cited by 72 publications

(46 citation statements)

References 14 publications

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“…2 (d) illustrates the input reflection coefficient, S11 parameter, which is below −10 dB at the desired range of frequency. Table I summarizes the most important performance parameters of the proposed technique with and without added inductors and their comparison with designs reported in previous literatures [5,6,7]. This table obviously illustrates the proposed technique offers better NF, gain and bandwidth with lower power consumption.…”

Section: Simulation Resultsmentioning

confidence: 82%

“…Also folded cascode structure is used to facilitate integration of RF transceiver in low voltage operation. A similar implementation targeting noise cancellation has been presented in [7] without focusing on parasitic capacitance effect, which is highlighted in this letter.…”

Section: Circuit Descriptionmentioning

confidence: 99%

“…1 (a). It should be noted that the four degeneration inductors used in [7] for noise reduction are omitted because they occupy large die area. Also transistor M 15 is added just for well-defined bias currents.…”

Section: Circuit Descriptionmentioning

confidence: 99%

“…In recent fully integrated RF receivers, some attempts have been made to merge blocks (LNA-mixer [5,6,7] or oscillator-mixer [8]) in order to minimize area, cost, and power consumption. The circuit of [5] is based on narrowband cascode LNA with inductive degeneration, yet its performance parameters are not significant.…”

Section: Introductionmentioning

confidence: 99%

“…Reference [6] is another broadband LNA employing the capacitive cross-coupling transconductor which attains meaningful measurement results in price of using as many as six inductors which are occupying large die areas. Common-gate topology which is inherently wideband has been chosen in [7] and achieves low noise figure with the aid of the noise cancellation scheme.…”

Section: Introductionmentioning

confidence: 99%

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A merged LNA and mixer with improved noise figure and gain for software defined radio applications

Elyasi

Jannesari

Nabavi

2012

IEICE Electron. Express

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This letter presents a new architecture of merged low noise amplifier and mixer, which employs a noise cancellation scheme and uses an inductor as an inter-stage matching network between LNA and mixer to absorb parasitic capacitances. As the parasitic capacitances degrade the gain and noise figure of the entire circuit, using an inductor in the inter-stage can very effectively improve both noise figure and gain of the circuit. Based on this new method, a merged LNA-mixer has been designed in a 0.18-μm RF CMOS technology. Simulation results show 4-dB increase in power conversion gain and 1.7-dB improvement in noise figure in comparison with the case without inter-stage filter. This circuit draws only 5 mA from a 1.8 V supply and covers the frequency range of 1.3 GHz to 4.1 GHz. Its large bandwidth as well as low power consumption makes it suitable for rapidly growing software defined radio RF transceivers.

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Section: Simulation Resultsmentioning

confidence: 82%

Section: Circuit Descriptionmentioning

confidence: 99%

Section: Circuit Descriptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A merged LNA and mixer with improved noise figure and gain for software defined radio applications

Elyasi

Jannesari

Nabavi

2012

IEICE Electron. Express

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A linearized and low noise CMOS mixer with B‐type amplifier‐based sub‐harmonic balun

Zhao

Wang

2016

Circuit Theory & Apps

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SUMMARYA low noise and high linearity down-conversion CMOS mixer for 2.4-GHz wireless receiver is presented in this paper. Using a sub-harmonic balun with a simple but effective B-type amplifier, the local oscillator frequency required for this mixer has been reduced by half, and the input local oscillator signal could be singleended rather than differential, which simultaneously simplifies the design of local oscillator. A distortion and noise cancelation transconductor in association with current bleeding technique is employed to improve the noise and linearity of the entire mixer under a reduced bias current without compromising the voltage gain. Fabricated in a 0.18-μm RF CMOS technology of Global Foundries, the mixer demonstrates a voltage gain of 15.8 dB and input-referred third-order intercept point of 6.6 dBm with a noise figure of 2.6 dB. It consumes 7.65 mA from a 1.0-V supply and occupies a compact area of 0.75 × 0.71 mm 2 including all test pads.

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How to make key 5G wireless technologies environmental friendly: A review

Alsharif

Nordin

Abdullah

et al. 2017

Trans Emerging Tel Tech

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Energy efficiency in cellular networks has increasingly become important to the cellular network operators due to its significant economic and ecological influence in the forthcoming generation of wireless networks, ie, the fifth-generation (5G) network. To pursue a vision of green communication, this study presents a comprehensive overview and discusses how the key physical layer techniques that will be adopted in the 5G technology can improve energy efficiency to achieve a sustainable wireless network. Among the key 5G technologies discussed are massive multiple-input multiple-output, green heterogeneous networks, green millimeter wave, green 5G device-to-device communication, green machine-to-machine communication, and energy-efficient 5G architecture. The review concludes that the 5G technology will soon fulfill the critical requirements of low-energy network while maintaining services with high performance. Potential research opportunities related to green 5G are also highlighted at the end of the article.

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A 90-nm Wideband Merged CMOS LNA and Mixer Exploiting Noise Cancellation

Cited by 72 publications

References 14 publications

A merged LNA and mixer with improved noise figure and gain for software defined radio applications

A merged LNA and mixer with improved noise figure and gain for software defined radio applications

A linearized and low noise CMOS mixer with B‐type amplifier‐based sub‐harmonic balun

How to make key 5G wireless technologies environmental friendly: A review

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