High gain and low flicker noise down-conversion mixer applied in 24GHz FMCW radar

2018 ◽  
Author(s):  
Yang Kong ◽  
Na Yan
Keyword(s):  
Flicker Noise ◽  
High Gain ◽  
Fmcw Radar ◽  
Down Conversion

Comparison of 122 GHz Lens Antennas for System-on-Chip FMCW Radar With Minimum Back Reflection and High Gain

2020 ◽  
Vol 19 (12) ◽  
pp. 2329-2333
Author(s):  
Ayse Ecem Bezer ◽  
Mehmet Abbak ◽  
Tugrul Gursoy ◽  
Umut Aydin
Keyword(s):  
High Gain ◽  
System On Chip ◽  
Fmcw Radar ◽  
Lens Antennas ◽  
Back Reflection ◽  
On Chip

scholarly journals A Sigma-Delta ADC for Signal Conditioning IC of Automotive Piezo-Resistive Pressure Sensors with over 80 dB SNR

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4199 ◽  
Author(s):  
Behnam Samadpoor Rikan ◽  
Sang-Yun Kim ◽  
Nabeel Ahmad ◽  
Hamed Abbasizadeh ◽  
Muhammad Riaz Ur Rehman ◽  
...  
Keyword(s):  
Input Signal ◽  
Flicker Noise ◽  
Signal To Noise Ratio ◽  
Pressure Sensors ◽  
High Gain ◽  
Cmos Process ◽  
Signal Conditioning ◽  
Sigma Delta ◽  
Cic Filter ◽  
Decimation Filter

This paper presents a second-order discrete-time Sigma-Delta (SD) Analog-to-Digital Converter (ADC) with over 80 dB Signal to Noise Ratio (SNR), which is applied in a signal conditioning IC for automotive piezo-resistive pressure sensors. To reduce the flicker noise of the structure, choppers are used in every stage of the high gain amplifiers. Besides, to reduce the required area and power, only the CIC filter structure is adopted as a decimation filter. This filter has a configurable structure that can be applied to different data rates and input signal bandwidths. The proposed ADC was fabricated and measured in a 0.18-µm CMOS process. Due to the application of only a CIC filter, the total active area of the SD-ADC and reference generator is 0.49 mm2 where the area of the decimation filter is only 0.075 mm2. For the input signal bandwidth of 1.22 kHz, it achieved over 80 dB SNR in a 2.5 MHz sampling frequency while consuming 646 µW power.

scholarly journals Quantum-enhanced interferometry with large heralded photon-number states

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
G. S. Thekkadath ◽  
M. E. Mycroft ◽  
B. A. Bell ◽  
C. G. Wade ◽  
A. Eckstein ◽  
...  
Keyword(s):  
Photon Number ◽  
Optical Loss ◽  
High Gain ◽  
Phase Sensitivity ◽  
Entangled Photons ◽  
Fundamental Limits ◽  
Parametric Down Conversion ◽  
Photonic States ◽  
Quantum Phenomena ◽  
Down Conversion

Abstract Quantum phenomena such as entanglement can improve fundamental limits on the sensitivity of a measurement probe. In optical interferometry, a probe consisting of N entangled photons provides up to a $$\sqrt{N}$$ N enhancement in phase sensitivity compared to a classical probe of the same energy. Here, we employ high-gain parametric down-conversion sources and photon-number-resolving detectors to perform interferometry with heralded quantum probes of sizes up to N = 8 (i.e. measuring up to 16-photon coincidences). Our probes are created by injecting heralded photon-number states into an interferometer, and in principle provide quantum-enhanced phase sensitivity even in the presence of significant optical loss. Our work paves the way toward quantum-enhanced interferometry using large entangled photonic states.

A K-Band High-Gain Down-Conversion Mixer in 0.18 $\mu$m CMOS Technology

2009 ◽  
Vol 19 (4) ◽  
pp. 227-229 ◽  
Author(s):  
Dukju Ahn ◽  
Dong-Wook Kim ◽  
Songcheol Hong
Keyword(s):  
Cmos Technology ◽  
High Gain ◽  
Down Conversion ◽  
K Band

scholarly journals Quantum-to-classical transition via fuzzy measurements on high-gain spontaneous parametric down-conversion

2010 ◽  
Vol 81 (3) ◽  
Author(s):  
Chiara Vitelli ◽  
Nicolò Spagnolo ◽  
Lorenzo Toffoli ◽  
Fabio Sciarrino ◽  
Francesco De Martini
Keyword(s):  
High Gain ◽  
Parametric Down Conversion ◽  
Classical Transition ◽  
Down Conversion
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