Results 1 to 10 of about 1,087,165 (163)
Sleep Apnea Syndrome Sensing at C-Band [PDF]
A non-intrusive sleep apnea detection system using a C-Band channel sensing technique is proposed to monitor sleep apnea syndrome in real time. The system utilizes perturbations of RF signals to differentiate between patient's breathing under normal and ...
Xiaodong Yang +8 more
doaj +5 more sources
A Single-Longitudinal-Mode S + C Band Wavelength-Tunable Fiber Laser [PDF]
An external cavity wavelength-fiber ring laser (ECWTFL) based on a semiconductor optical amplifier and a combined wavelength scanning filter in the Littrow configuration is proposed and experimentally demonstrated.
Da Liu, Yi Jiang
doaj +2 more sources
LOW-COST C-BAND SIW BANDPASS FILTER USING FR4-EPOXY SUBSTRATE
This paper describes a substrate integrated waveguide (SIW) filter built on an Fr4-Epoxy substrate with a dielectric constant 4.4 and a height of h=1.6mm.
Ahcene ABED +3 more
doaj +1 more source
Size Miniaturized Fractal Nested Circular Rings-Shaped Microstrip Antenna for Various Wireless Applications [PDF]
In this paper; a wideband fractal circular rings shaped microstrip antenna over partial rectangular ground plane is presented. Fractal geometry technique is used in order to take advantage of its self-similar property which lead to attain not only size ...
Shereen Shandal +2 more
doaj +1 more source
Research and Application of Quasi-Coherent Technology in C-Band 25 Gbit/s Optical Transceiver
In order to extend the transmission distance of the traditional C-band high-speed optical module, this paper studies a kind of quasi-coherent reception technology based on the existing 25 Gbit/s optical module, and discusses the application scheme of the
Ling-qiao KONG, Qin-lian BU
doaj +1 more source
This study provides a comparative analysis of two Sentinel-1 and one Sentinel-2 burned area (BA) detection and mapping algorithms over 10 test sites (100 × 100 km) in tropical and sub-tropical Africa.
Mihai A. Tanase +11 more
doaj +1 more source
To date, research on social capital in Indigenous contexts has been scarce. In this quantitative study, our objectives were to (1): Describe bonding social capital within four distinct First Nations communities in Canada, and (2) Explore the associations
Sharon Yeung +7 more
doaj +1 more source
Design of micro-strip patch antenna for C – band applications [PDF]
This paper presents the design of a horizontal slot micro-strip Patch antenna with a dual slot inset feed mechanism. The antenna is resonating at 4.28 GHz, with reflection coefficient of -16.32 dB, and a Bandwidth of 1 GHz.
Prashanth Kolluri +3 more
doaj +1 more source
Two-Propagation-Modes and Dual-Band Antenna for Circular Polarized TX/RX Systems at C-Band [PDF]
This paper presents a novel slotted array for dual-band and circular-polarized applications. Two different propagation modes within a Substrate Integrated Waveguide (SIW), TE10 and TE20, feed at the same time two pairs of slots, aimed at different ...
I. Herrero-Sebastian, C. Benavente-Peces
doaj
Modified U-Slot Stacked Micro-Strip Patch Antenna for Ultra-Wideband Applications in S Band, C Band and X Band [PDF]
The U-slot micro-strip patch antennas were originally developed for bandwidth broadening applications. This study presents a transmission line feed to modify the U-slot stacked rectangular micro-strip patch antenna for Ultra-Wide Band (UWB ...
Monika Surana, Amit Jain
doaj +1 more source

