Wide‐Bandwidth Nanocomposite‐Sensor Integrated Smart Mask for Tracking Multiphase Respiratory Activities (Adv. Sci. 31/2022)
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Science"
DOI: 10.1002/advs.202270200
Abstract: Smart Masks In article number 2203565 by Ho‐yin Chan, Xinge Yu, Jianping Wang, Wen Jung Li, and co‐workers, a “smart mask” is developed by using an ultrathin nanocomposite‐based soundwave sensor with high sensitivity and wide‐bandwidth… read more here.
Keywords: wide bandwidth; smart mask; mask; bandwidth nanocomposite ... See more keywords
Flexible and optically transparent microwave absorber with wide bandwidth based on graphene
Sign Up to like & getrecommendations! Published in 2019 at "Carbon"
DOI: 10.1016/j.carbon.2019.06.011
Abstract: Abstract Study of expanding the absorption bandwidth of graphene-based optically transparent microwave absorbers (TMAs) evolved so far encounters a major bottleneck between reducing the sheet resistance of graphene film and fabricating a frequency selective surface… read more here.
Keywords: graphene; absorber wide; transparent microwave; wide bandwidth ... See more keywords
Ultra-wide-bandwidth (UWB) microstrip monopole antenna using split ring resonator (SRR) structure
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Microwave and Wireless Technologies"
DOI: 10.1017/s1759078717001131
Abstract: This paper presents a procedure to model an ultra wide-bandwidth (UWB) microstrip monopole antenna. The proposed antenna is composed of three different lengths of semi-circular shapes connected with circular disk and half circular modified ground… read more here.
Keywords: ultra wide; wide bandwidth; antenna; bandwidth uwb ... See more keywords
Flexible Filtering Element on SOI With Wide Bandwidth Tunability and Full FSR tuning
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2018.2885395
Abstract: We demonstrate a silicon-on-insulator flexible filtering element, relying on two serially coupled micro-ring resonators equipped with three thermo-optically tuned Mach–Zehnder interferometers, acting as variable optical couplers. A single electrode configuration is adopted, enabling the low-complexity… read more here.
Keywords: filtering element; bandwidth; flexible filtering; wide bandwidth ... See more keywords
A 9.6-mW/Ch 10-MHz Wide-Bandwidth Electrical Impedance Tomography IC With Accurate Phase Compensation for Early Breast Cancer Detection
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2020.3032723
Abstract: An eight-channel 10-MHz wide-bandwidth electrical impedance tomography (EIT) IC is proposed for early breast cancer detection system. To increase the resolution of EIT images, the proposed IC has three key features: 1) wide-bandwidth instrumentation amplifier… read more here.
Keywords: cancer detection; impedance; cancer; breast cancer ... See more keywords
Wide-Bandwidth, High-Linearity, 2.8-GS/s, 10-bit Accurate Sample and Hold Amplifier in 130-nm SiGe BiCMOS
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2019.2897991
Abstract: This paper presents a highly linear BiCMOS sample and hold amplifier (SHA) providing 2.8-GS/s intermediate frequency (IF) sampling for a 1-GHz input bandwidth spanning from 1.5 to 2.5 GHz. A single-transistor hold-mode feedthrough cancellation technique… read more here.
Keywords: hold amplifier; sample hold; wide bandwidth; high speed ... See more keywords
A New Analytical Model to Study the Ionospheric Effects on VHF/UHF Wideband SAR Imaging
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2017.2693396
Abstract: With a view to detecting foliage-obscured/ground-obscured targets on a global scale, low frequency (i.e., very high frequency (VHF)/ultrahigh frequency (UHF) band) and wide bandwidth is a trend in future spaceborne synthetic aperture radar (SAR) system… read more here.
Keywords: bandwidth sar; vhf uhf; wide bandwidth; model ... See more keywords
Sensitivity of Wide Bandwidth Radiometer for Remote Sensing of Ocean Salinity
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2021.3101962
Abstract: Passive microwave remote sensing of sea surface salinity from space is currently being done with measurements in the 27 MHz wide spectral window at 1.413 GHz (L-band) protected for passive use. Modern L-band instruments, such… read more here.
Keywords: wide bandwidth; remote sensing; water; ocean salinity ... See more keywords
Ultra-wide bandwidth photonic microwave phase shifter with amplitude control function.
Sign Up to like & getrecommendations! Published in 2017 at "Optics express"
DOI: 10.1364/oe.25.002883
Abstract: This paper presents a new technique for realizing continuous 0°-360° RF signal phase shift over a very wide bandwidth. It is based on using single-sideband modulation together with optical filtering to largely suppress one of… read more here.
Keywords: phase; phase shifter; amplitude control; wide bandwidth ... See more keywords
Programmable optical real-time processing system for ultra-wide bandwidth electronic reconnaissance.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.460018
Abstract: Electronic reconnaissance is to detect signals, extract their parameters, modulation types or direction of arrival and so on from a wide bandwidth range. It is difficult for digital signal processing device to process in real… read more here.
Keywords: system; wide bandwidth; processing; real time ... See more keywords
32-channel wide-bandwidth massive RF photonic combiner based on distributed groups of arrayed photodetectors.
Sign Up to like & getrecommendations! Published in 2023 at "Optics express"
DOI: 10.1364/oe.484839
Abstract: We propose and experimentally demonstrate a low-loss, radio frequency (RF) photonic signal combiner with flat response from 1 GHz to 15 GHz and low group delay variation of 9 ps. The distributed group array photodetector combiner (GAPC)… read more here.
Keywords: combiner; wide bandwidth; channel wide; bandwidth massive ... See more keywords