125Mbit/s×3 Transmitter for Short-Distance Optical Link Using Low-Cost RGB-LED

2016 ◽  
Author(s):  
N. T. Hung ◽  
Nam Pham Ngoc ◽  
T. C. Thang ◽  
P. H. Binh
Keyword(s):  
Short Distance ◽  
Low Cost ◽  
Optical Link

A PCI Express optical link based on low-cost transceivers qualified for radiation hardness

2013 ◽  
Vol 8 (02) ◽  
pp. C02011-C02011 ◽  
Author(s):  
A Triossi ◽  
D Barrientos ◽  
M Bellato ◽  
D Bortolato ◽  
R Isocrate ◽  
...  
Keyword(s):  
Low Cost ◽  
Radiation Hardness ◽  
Pci Express ◽  
Optical Link

A Review on Hybrid Optical Amplifiers

2018 ◽  
Vol 39 (3) ◽  
pp. 267-272 ◽  
Author(s):  
Mehtab Singh
Keyword(s):  
Optical Communication ◽  
Communication Systems ◽  
Optical Amplifiers ◽  
Low Cost ◽  
Transmission System ◽  
Optical Link ◽  
Efficient Performance ◽  
Optical Communication Systems

Abstract The implementation of hybrid optical amplifiers has led to the emergence of DWDM in optical communication systems. By implementation of hybrid optical amplifiers, the performance of DWDM transmission can be enhanced. In this paper, different configurations of hybrid optical amplifiers are discussed which can be implemented at low cost and efficient performance of DWDM transmission system. Optical amplifiers can be used in different hybrid configurations to enhance the performance of the optical link and minimize the limitations of existing amplifiers.

scholarly journals Implementation of Ultrasonic Sensor as a Radar for Obstacle Detection

2021 ◽  
Vol 1 (1) ◽  
pp. 12-15
Author(s):  
Ahmad Suaif ◽  
Ferizandi Qauzar Gani
Keyword(s):  
Comparative Analysis ◽  
Short Distance ◽  
Low Cost ◽  
Small Error ◽  
Obstacle Detection ◽  
Radar System ◽  
Ultrasonic Sensor ◽  
Servo Motor ◽  
Angular Rotation ◽  
Distance Error

The Arduino UNO, ultrasonic sensor, servo motor, and Processing as visual software was used to create a low cost ultrasonic radar system that can detect and determine the location of an object, such as obstacles, in a short distance. Objects can be sensed up to 40 cm away from the ultrasonic sensor and the ultrasonic radar's angular rotation can detect objects from 15o to 165o and counterclockwise. The obstacle objects will be displayed in the computer panel by running the visual software. A comparative analysis of the distance error between the radar and the obstacles is used to assess the feasibility of the proposed system. The findings obtained from measurements of the obstacles are tabled to show that the planned design achieved a relatively small error, with 90% as the lowest accuracy.

scholarly journals Interdigitated Electrophotocatalytic Cell for Water Purification

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Guy Shemer ◽  
Yaron Paz
Keyword(s):  
Water Purification ◽  
Short Distance ◽  
Rhodamine 6G ◽  
Low Cost ◽  
Oxygen Species ◽  
Positive Bias ◽  
Self Assembled Monolayer ◽  
Interdigitated Electrodes ◽  
Activated Oxygen ◽  
And Performance

The preparation, characterization, and performance of an electrophotocatalytic cell, made of low-cost, planar interdigitated electrodes is reported hereby. The operation of the cell under small positive bias was demonstrated by photocatalytically degrading the dye rhodamine 6G in solution as well as by monitoring the degradation of self-assembled monolayer chemisorbed on the TiO2electrode. Results point out to the importance of activated oxygen species formed in the process and suggest that the short distance between the two electrodes provides a way to utilize the activated oxygen species formed at the negatively biased electrode.

Broadband parallel-fiber optical link for short-distance interconnection with multimode fibers

2000 ◽  
Vol 39 (5) ◽  
pp. 690 ◽  
Author(s):  
Ulrich W. Krackhardt ◽  
Róbert Klug ◽  
Karl-Heinz Brenner
Keyword(s):  
Short Distance ◽  
Parallel Fiber ◽  
Optical Link ◽  
Multimode Fibers ◽  
Fiber Optical

Ultra-wideband monopole antenna with U and L shaped slotted patch for applications in 5G and short distance wireless communications

2020 ◽  
pp. 1-22
Author(s):  
Khalid Hamed Alharbi ◽  
Md. Moniruzzaman ◽  
Rabah W. Aldhaheri ◽  
Abdulah Jeza Aljohani ◽  
Simranjit Singh ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Short Distance ◽  
Low Cost ◽  
Cutoff Frequency ◽  
Local Area ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Biomedical Sensors ◽  
Face To Face

In this paper, a monopole antenna with Ultra-wideband (UWB) characteristics is presented for applications in 5G and short-distance wireless communications. It consists of a rectangular shaped patch having truncated corners and central notch with an extended stub at top edge. Two layers of slots are engraved in the middle of the patch within which the outer layer contains four L shaped slots and the inner layer contains two face to face vertically placed U-shaped slots. A partial ground is structured with staircase slots to attain ultra-wideband response with sufficient gain and efficiency. The proposed antenna provides 124% of impedance bandwidth (2.8 GHz–12 GHz) implemented on a low-cost FR4 substrate having the electrical dimension of 0.3𝜆 × 0.19𝜆 at the low cutoff frequency. The effect of the inclusion of slots within the patch is clearly observable as it increases gain and efficiency. The proposed antenna exhibits better response with a maximum measured gain of 6.5 dBi and efficiency 85% within the bandwidth. Near constant time delay around 1 nS and good fidelity factor of 0.8316 represents that this slotted antenna can be used for undistorted reliable signal transfer. This antenna also provides symmetrical radiation patterns with less cross-polarization effects. Therefore, this monopole antenna can be an appropriate candidate for short-range communication applications like 5G, wireless local area networks, transfer data from biomedical sensors and imaging.

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