Concept and Design of the Terahertz Vacuum Electronic Amplifier Integrated on a Chip

2020 ◽  
Author(s):  
Kaiwen Zhou ◽  
Bangrui Zhu ◽  
Weijie Wang ◽  
Yue Wang ◽  
Ding Li ◽  
...  
Keyword(s):  
Electronic Amplifier

Electronic Amplifier Based on Hall Effect Principle

2020 ◽  
pp. 639-650
Author(s):  
Abhimanyu Kumar ◽  
Souvik Ganguli ◽  
Shuvangi Sinha ◽  
Raju Basak
Keyword(s):  
Hall Effect ◽  
Electronic Amplifier

Frequency-tripling OEO based on frequency multiplication in saturated electronic amplifier

Optik ◽  
2019 ◽  
Vol 194 ◽  
pp. 163089
Author(s):  
Weijie Xu ◽  
Chun Yang ◽  
Ziye Wang ◽  
Weiqian Zhao
Keyword(s):  
Frequency Multiplication ◽  
Electronic Amplifier

Electronic Probe for Eustachian Tube Patency and Objective Tinnitus

1981 ◽  
Vol 89 (5) ◽  
pp. 854-855
Author(s):  
John M. Epley
Keyword(s):  
Eustachian Tube ◽  
Basic Unit ◽  
Impedance Audiometry ◽  
Objective Tinnitus ◽  
Electronic Probe ◽  
Electronic Amplifier

The electronic probe provides a simple means to detect eustachian tube patency, and can be used as a sensitive probe of objective tinnitus. The basic unit consists of a battery-operated, electronic amplifier connected by 18-in leads to a sensitive microphone and to a small speaker (Fig 1). These transducers are each connected to rubber nipples of the type used for impedance audiometry (Fig 2).

scholarly journals Simulation and Design of Low Noise Amplifier

2019 ◽  
Vol 9 (1) ◽  
pp. 2968-2970
Keyword(s):  
Noise Figure ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Maximum Gain ◽  
Noise Amplifier ◽  
Electronic Amplifier

A low-noise amplifier is an electronic amplifier that amplifies a very poor signal (in terms of its power) without significantly degrading its SNR. An amplifier increases the power of both the signal and the noise present at its input. A good LNA has a low Noise Figure as well as enough gain to boost the signal thereby does the work required of it. This paper proposes a LNA designed with ATF-21170 to operate in 2.4 GHz with a maximum gain of 18.453 dB and minimum NF 1.346

The Design and Modeling of 2.4 GHz and 3.5 GHz MMIC LNA

2012 ◽  
pp. 157-184
Author(s):  
Ching Wen Yip
Keyword(s):  
Reflection Coefficient ◽  
Noise Figure ◽  
Design System ◽  
Operating Voltage ◽  
Total Current ◽  
Current Consumption ◽  
Amplifier Gain ◽  
Advance Design System ◽  
Feedback Techniques ◽  
Electronic Amplifier

LNA is an electronic amplifier that is required in receiver systems to increase the amplitude of the very low level signals from the antenna without adding too much noise. Software Advance Design System (ADS) was used to simulate the circuit and design the layout. LNA was designed using cascode topology with feedback techniques which produces better matching and unconditionally stable over the entire desired frequencies. For the 2.4 GHz operation, the amplifier achieves gain of 14.949 dB, noise figure of 1.951 dB and input reflection coefficient of -10.419 dB. With operating voltage supply at 3V, the total current consumption is 13 mA. For 3.5GHz amplifier, gain is 22.985 dB, noise figure is 1.964dB, input reflection coefficient is -12.427 dB and current consumption is 18 mA.

Electronic Acoustic Sensor

2005 ◽  
Vol 889 ◽  
Author(s):  
Vivek Bharti ◽  
Fred L. DeRoos
Keyword(s):  
Medical Equipment ◽  
Signal To Noise Ratio ◽  
Piezoelectric Sensor ◽  
Acoustic Sensor ◽  
Differential Mode ◽  
Signal To Noise ◽  
Remote Areas ◽  
Primary Health ◽  
Electronic Amplifier ◽  
Diagnosis Of Diseases

AbstractThe Stethoscope (acoustic sensor) is a fundamental tool for the diagnosis of diseases and conditions of the cardiovascular (CV) system. It serves as the most commonly employed technique for diagnosis of such diseases and conditions in primary health care and in circumstances where sophisticated medical equipment is not available, such as remote areas. The piezoelectric sensor was used as an acoustic sensor. The sensitivity of the sensor was improved more than 20 times with our new design. The signal-to-noise ratio was further improved by using unique sensor housing and by using an electronic amplifier in the differential mode.

Dynamic Response of a Feedback Thermoresistive Electrical Substitution Pyranometer

1998 ◽  
Vol 120 (2) ◽  
pp. 126-130 ◽  
Author(s):  
R. C. S. Freire ◽  
G. S. Deep ◽  
P. C. Lobo ◽  
A. M. N. Lima ◽  
J. S. Rocha Neto ◽  
...  
Keyword(s):  
Thin Film ◽  
Response Time ◽  
Electrical Power ◽  
Wheatstone Bridge ◽  
Time Constants ◽  
Offset Voltage ◽  
True Value ◽  
Instrument Response ◽  
Order Of Magnitude ◽  
Electronic Amplifier

Calorimetric pyranometers use plane black thermal sensors which absorb solar radiation. If a thermoresistive transducer (sensor-detector combination) is used, the temperature measured is nearer the true value than for thermoelectric transducers. More importantly, the measurement of electrical power is much more accurate than the measurement of temperature. In commercial platinum (thermoresistive), thin film thermometers, the substrate produces transducer time constants an order of magnitude larger than for the best thermoelectric transducers. Use of an electronic amplifier with the thermoresistive sensor, forming one arm of a Wheatstone bridge and arranged in a negative feedback configuration, can reduce the overall response time considerably. Theoretical formulations of instrument response, taking into account the amplifier input offset voltage, are presented and the response time is estimated.

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