C-band FMCW radar analog-front-end for SAR/ISAR applications

2015 ◽  
Author(s):  
K. Ndini ◽  
D. Gromek ◽  
M. Wielgo ◽  
P. Samczynski ◽  
M. Malanowski
Keyword(s):  
Fmcw Radar ◽  
Front End ◽  
Analog Front End

scholarly journals Design and validation tests for compact FMCW C-band Analog-Front-End for radar imaging applications

2016 ◽  
Vol 8 (6) ◽  
pp. 845-854
Author(s):  
Damian Gromek ◽  
Piotr Samczyński ◽  
Maciej Wielgo ◽  
Mateusz Malanowski ◽  
Krzysztof Kulpa
Keyword(s):  
Continuous Wave ◽  
Synthetic Aperture ◽  
Fmcw Radar ◽  
Front End ◽  
Analog Front End ◽  
Frequency Components ◽  
Radar Applications ◽  
Commercial Off The Shelf ◽  
Validation Tests ◽  
Future Work

This paper presents the design, implementation, and validation tests of a C-band analog-front-end (AFE) for the frequency modulated continuous wave (FMCW) radar. The system was designed to be used in various radar applications, including short rage mode, synthetic aperture radar (SAR) and moving target indication (MTI) mode. The AFE presented here was based on commercial off-the-shelf radio frequency components, and designed as a homodyne system, so the final applications were based on the FMCW radar. Validation tests and experiments were carried out in the laboratory and in open-air environments. The authors present tests of the AFE, including MTI and SAR trials, conducted using a ground moving platform (a car) and an airborne platform (a small aircraft). The results are discussed with the prospect of future work and further improvements in mind.

A biasing based current mode analog front-end for biomedical applications

2021 ◽  
Author(s):  
Raja Krishnamoorthy ◽  
E. Kavitha ◽  
V. Beslin Geo ◽  
K.S.R. Radhika ◽  
C. Bharatiraja
Keyword(s):  
Biomedical Applications ◽  
Current Mode ◽  
Front End ◽  
Analog Front End

A Floating-Gate-Based Four-Channel Reconfigurable Analog Front-End Integrated Circuit

2021 ◽  
Author(s):  
Zu-Jia Lo ◽  
Bipasha Nath ◽  
Yuan-Chuan Wang ◽  
Yun-Jie Huang ◽  
Hui-Chun Huang ◽  
...  
Keyword(s):  
Integrated Circuit ◽  
Floating Gate ◽  
Front End ◽  
Analog Front End

A 296 nJ Energy-per-Measurement Relaxation Oscillator-Based Analog Front-End for Chemiresistive Sensors

2021 ◽  
pp. 1-11
Author(s):  
Antonio Vincenzo Radogna ◽  
Simonetta Capone ◽  
Luca Francioso ◽  
Pietro Aleardo Siciliano ◽  
Stefano D'Amico
Keyword(s):  
Relaxation Oscillator ◽  
Front End ◽  
Analog Front End

Low Distortion Analog Front-End for Digital Electret Microphone

2013 ◽  
Vol 475-476 ◽  
pp. 1633-1637
Author(s):  
Seung Yong Bae ◽  
Jong Do Lee ◽  
Eun Ju Choe ◽  
Gil Cho Ahn
Keyword(s):  
Audio Signal ◽  
Cmos Technology ◽  
Common Mode ◽  
Electret Microphone ◽  
Front End ◽  
Voltage Variation ◽  
Analog Front End ◽  
Source Follower ◽  
Source Voltage ◽  
Low Distortion

This paper presents a low distortion analog front-end (AFE) circuit to process electret microphone output signal. A source follower is employed for the input buffer to interface electret microphone directly to the IC with level shifting. A single-ended to differential converter with output common-mode control is presented to compensate the common-mode variation resulted from gate to source voltage variation in the source follower. A replica stage is adopted to control the output bias voltage of the single-ended to differential converter. The prototype AFE circuit fabricated in a 0.35μm CMOS technology achieves 68.2dB peak SNDR and 79.9dB SFDR over an audio signal bandwidth of 20kHz with 2.5V supply while consuming 1.05mW.

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