A WCDMA/WLAN digital polar transmitter with low-noise ADPLL, wide-band PM/AM modulator and linearized PA in 65nm CMOS

2014 ◽  
Author(s):  
Shiyuan Zheng ◽  
Howard C. Luong
Keyword(s):  
Wide Band ◽  
Low Noise ◽  
Polar Transmitter

Fluxgate and Search Coil Hybrid: A Low-Noise Wide-Band Magnetometer

2012 ◽  
Vol 48 (11) ◽  
pp. 3700-3703 ◽  
Author(s):  
Feng Han ◽  
Shoumu Harada ◽  
Ichiro Sasada
Keyword(s):  
Wide Band ◽  
Low Noise ◽  
Search Coil

Design of 3.1-10.6GHz CMOS LNA Based on Input Matching Technique of Common-Gate Topology

2013 ◽  
Vol 479-480 ◽  
pp. 1014-1017
Author(s):  
Yi Cheng Chang ◽  
Meng Ting Hsu ◽  
Yu Chang Hsieh
Keyword(s):  
Noise Figure ◽  
Supply Voltage ◽  
Average Power ◽  
Wide Band ◽  
Low Noise ◽  
Input Matching ◽  
Common Gate ◽  
Cmos Lna ◽  
Noise Amplifier ◽  
Is Design

In this study, three stage ultra-wide-band CMOS low-noise amplifier (LNA) is presented. The UWB LNA is design in 0.18μm TSMC CMOS technique. The LNA input and output return loss are both less than-10dB, and achieved 10dB of average power gain, the minimum noise figure is 6.55dB, IIP3 is about-9.5dBm. It consumes 11mW from a 1.0-V supply voltage.

Gain-ranging analog or digital seismic system

1974 ◽  
Vol 64 (1) ◽  
pp. 103-113 ◽  
Author(s):  
E. R. Kanasewich ◽  
W. P. Siewert ◽  
M. D. Burke ◽  
C. H. McCloughan ◽  
L. Ramsdell
Keyword(s):  
Dynamic Range ◽  
Wide Band ◽  
Low Noise ◽  
Active Filters ◽  
Operating Conditions ◽  
Natural Period ◽  
Analog System ◽  
Effective Dynamic ◽  
Different Levels ◽  
Seismic System

abstract A wide-band, gain-ranging amplifier is described that may be used for recording data with a dynamic range of 60 db in each of three different levels, 12 db apart, so that we achieve an “effective” dynamic ±160-v analog or 84-db digital, within a normal ±10-v analog system. As described, the ranging circuit reduces the gain of the amplifier by a factor of either 4 or 16 whenever the output signal approaches the maximum for the system. The wide-band response is achieved with low-noise operational amplifiers and second-order active filters. Signals with periods greater than 30 sec are amplified by 100 db and those with periods shorter than 1 sec are amplified by 70 db. The system works well in extending the useful output range of a Willmore Mark II seismometer with a natural period of 1.5 sec to over 40 sec under normal field operating conditions. When analog recording, the gain-range switching occurs when the input signal reaches ±8.1-v; when digital recording, the level is ±9.375 v. The period in a divide-by-4- or 16-state is preset by the experimentalist. The gain level is recorded on an extra channel which is also used to record absolute time.

scholarly journals Design of Low Power UWB CMOS Low Noise Amplifier using Active Inductor for WLAN Receiver

2018 ◽  
Vol 7 (2.24) ◽  
pp. 448
Author(s):  
S Manjula ◽  
M Malleshwari ◽  
M Suganthy
Keyword(s):  
Low Power ◽  
Noise Figure ◽  
Wide Band ◽  
Cmos Technology ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Design System ◽  
Active Inductor ◽  
Chip Area ◽  
Noise Amplifier

This paper presents a low power Low Noise Amplifier (LNA) using 0.18µm CMOS technology for ultra wide band (UWB) applications. gm boosting common gate (CG) LNA is designed to improve the noise performance.  For the reduction of on chip area, active inductor is employed at the input side of the designed LNA for input impedance matching. The proposed UWB LNA is designed using Advanced Design System (ADS) at UWB frequency of 3.1-10.6 GHz. Simulation results show that the gain of 10.74+ 0.01 dB, noise figure is 4.855 dB, input return loss <-13 dB and 12.5 mW power consumption.  

A wide-band prime-focus horn for low-noise receiver applications

1990 ◽  
Vol 38 (11) ◽  
pp. 1898-1900 ◽  
Author(s):  
B.M. Thomas ◽  
K.J. Greene ◽  
G.L. James
Keyword(s):  
Wide Band ◽  
Low Noise ◽  
Noise Receiver

scholarly journals Study on the Technology of Ultra-high Sensitive Wide-band Magnetic-feedback Inductive Magnetic Sensor

2020 ◽  
Vol 327 ◽  
pp. 01002
Author(s):  
Yong Liu ◽  
Wenbin Li ◽  
Jinrong Zhou ◽  
Rui Pan ◽  
Huan Zheng ◽  
...  
Keyword(s):  
Wide Band ◽  
Low Noise ◽  
Magnetic Sensor ◽  
Core Material ◽  
Geological Exploration ◽  
High Impedance ◽  
Main Factors ◽  
Coil Winding ◽  
Ultra Low Noise ◽  
Better Than

It analyses the composition and principle of high-sensitive wide-band magnetic-feedback inductive magnetic sensor to fulfil the demand of high-sensitive wide-band magnetic sensor in geological exploration. It studies main factors to the performance of wide-band magnetic sensor, such as turns of coils, core material features, and amplifier noise, specifies section-wise coil winding, the type and dimension of core material, and designs low-noise high-impedance LF chopping amplifier channel and composite amplifier with HF amplifier channel. The noise of magnetic sensor at 1 Hz is better than 10-4nT/Hz1/2, at 100Hz-1kHz band the noise floor is close to SQUID which can reach 10-6nT/Hz1/2. The magnetic sensor works at wide frequency band (0.0001Hz-10kHz) and ultra-low noise, which can meet the requirements of both AMT and CSAMT.

scholarly journals Fixed and Mobile RFI Search Facilities at Medicina

2001 ◽  
Vol 196 ◽  
pp. 297-300 ◽  
Author(s):  
S. Montebugnoli ◽  
G. Tomassetti ◽  
C. Bortolotti ◽  
M. Roma
Keyword(s):  
Complex System ◽  
Radio Astronomy ◽  
Wide Band ◽  
Low Noise ◽  
Continuous Mode ◽  
Mobile System ◽  
Receiver System

Fixed and mobile RFI search facilities at the Medicina radio astronomy station are described. A complex system of wide-band antennas that can be steered, has been designed and installed on the top of a 25-m high tower and connected with a wide-band sweeping receiver system. At present it works from 0.08 GHz up to 2.5 GHz in continuous mode. Low-noise front ends are used in the radio astronomy bands. A mobile system, equipped with a similar receiving system, has been designed to facilitate the interfering transmitter's position localization.

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