نتایج جستجو برای: noise figure

تعداد نتایج: 296609  

2016
Bhavna Prajapati Swapnil Jain Braj Bihari Soni Ming-Lung Lee Chong-Yi Liou Çağri Ulusoy Jongwon Lee Jooseok Lee Kyounghoon Yang V. Giannini P. Nuzzo

In this paper Broadband Reconfigurable low Noise Amplifier for Multiband Application is presented. Low noise amplifier is versatile demanded in modern technology, technology demanded amplifier have less reflection and more rejection of noise, in this paper presented differential cross feedback topology and feedback technique for designing of Broadband Reconfigurable low Noise Amplifier, the req...

2006
Jun Gao Jinsheng Tang Kemin Sheng

Zero-IF receiver has some advantages, such as small factor, low cost and easily integrated on a chip. They make it competitive of RF receivers. However, DC Offset and flicker noise, etc., have profound effects in zero-IF receiver, which need not be considered in super-heterodyne receiver. Following a major study of flicker noise, possible solutions are given, especially those based on the passi...

2000
Lance Lascari

Op-amp in loop filter While the cases using the passive loop filter (no op-amp) are simply a matter of circuit analysis, the case using the active filter requires some explanation. This case will only be described here; the accompanying analysis can be found in the supporting MathCad documents. With the op-amp in the loop, and the filter configuration shown in Figure 1, four different noise sou...

2012
Ravinder Kumar Munish Kumar Viranjay M. Srivastava

Low noise amplifier is the front end block of radio-frequency receiver system. Its design required various characteristics such as power gain, noise figure, insertion losses and power consumption. In this paper we have proposed a single stage low noise amplifier design with high gain and low noise using inductive source degeneration topology for frequency range of 3 GHz to 7 GHz and also use th...

2008
Alexander Tomkins Ricardo Andres Aroca Takuji Yamamoto Sean T. Nicolson Yoshiyasu Doi Sorin P. Voinigescu

This paper presents a 1.2V 60GHz zero-IF transceiver fabricated in a 65nm CMOS process with a digital back-end. The chip includes a receiver with 14.7dB gain, a low 5.6dB noise figure, a 60GHz LO distribution tree, a 64GHz static frequency divider, and a direct BPSK modulator operating over the 55-65GHz band at data rates exceeding 3.5Gb/s. The chip consumes 374mW (232mW) from 1.2V (1.0V) and o...

2002
Jay P. John Francis Chai Dave Morgan Theresa Keller Jim Kirchgessner Ralf Reuter Hernan Rueda Jim Teplik Jan White Sandy Wipf Dragan Zupac

The performance enhancement of a SiGe:C HBT for RF/IF applications is described for Motorola’s 0.35μm and 0.18μm BiCMOS technologies. Cutoff frequencies (fT) have been improved from 50GHz to 78/84GHz (0.35/0.18μm BiCMOS), with a reduction in minimum noise figure (NF) from 0.7dB to 0.3dB. Improvements occurred through the optimization of the intrinsic collector and base dopant profiles, extrinsi...

1999
Luca Daniel Manolis Terrovitis

This report describes the design of a two-stage broadband low-noise-amplifier (LNA) for the frequency range from 3 GHz to 9 GHz, using GaAs MESFETs with an ft of 20 GHz. The passive components were implemented with microstrips. In the frequency band of operation, the achieved noise figure (NF) is within 0.5 dB from the minimum NF of a single transistor, the power gain is 15 dB, flat within 1 dB...

2012
Gustavo Campos Martins Fernando Rangel de Sousa

A cascode CMOS low noise amplifier (LNA) is presented along with the used design methodology and measurement results. The LNA works at 2.4 GHz with 14.5 dB voltage gain and 2.8 dB simulated noise figure (NF). Powered from a 1.8 V supply, the core measured current consumption is 2.76 mA. An output buffer was designed to match a 50 Ω load and its current consumption is 5.5 mA. The technology used...

2012
Hiroshi Ban Tim J Preston Alan Meeson Andrew E Welchman

Supplementary Figure 1 Behavioral results from additional psychophysical tests Supplementary Figure 2 Percent signal change and composite data Supplementary Figure 3 Simulation results – effects of signal to noise ratios and cue reliability Supplementary Figure 4 Simulation results – effects of spatial organization Supplementary Figure 5 Subjective assessment of eye vergence results Supplementa...

Journal: :Optics Letters 2021

A machine learning framework predicting pump powers and noise figure profile for a target distributed Raman amplifier gain is experimentally demonstrated. We employ single-layer neural network to learn the mapping from profiles figures. The obtained results show highly-accurate designs predictions, with maximum error on average of ~0.3dB. This provides comprehensive characterization thus valuab...

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