Results 11 to 20 of about 2,690,016 (359)
Energy-loss return gate via liquid dielectric polarization [PDF]
Nature Communications, 2018 AbstractThere has been much research on renewable energy-harvesting techniques. However, owing to increasing energy demands, significant energy-related issues remain to be solved. Efforts aimed at reducing the amount of energy loss in electric/electronic systems are essential for reducing energy consumption and protecting the environment.
Taehun Kim +6 more
exaly +7 more sources
Dust composition and mass-loss return from the luminous blue variable R71 in the LMC [PDF]
, 2014 We present an analysis of mid-and far-infrared (IR) spectrum and spectral energy distribution (SED) of the LBV R71 in the LMC.This work aims to understand the overall contribution of high-mass LBVs to the total dust-mass budget of the interstellar medium
Meixner, M. +5 more
core +5 more sources
Design and Simulation of 2×2 Micro Strip Circular Patch Antenna Array at 28 GHz for 5G Mobile Station Application [PDF]
International Journal of Electronics and Telecommunications, 2022 This paper proposes the design and simulation of 2×2 circular patch antenna array working at 28 GHz by using four inset feed micro strip circular patch antennas to achieve beam forming with directivity around 13dB which is required to overcome part of ...
Salim Abdullah Hasan +3 more
doaj +1 more source
Small-Diameter Tube Wall Damage-Detection Method Based on TE01 Mode Microwave
Sensors, 2022 Accidents occur frequently in urban gas pipelines, and pipeline damage detection is an important means of ensuring pipeline safety. Aiming at the problem that the small diameter pipeline is difficult to detect, this paper proposes a detection method for ...
Meng Shi +3 more
doaj +1 more source
Graphene based microstrip patch antenna on photonic crystal substrate for 5G application
Frontiers in Materials, 2022 One of the strongest and thinnest substances known to exist is graphene. It can be efficiently used for antenna fabrication and significant benefits can be analyzed such as size miniaturization, gain and return loss enhancement, flexibility and increase ...
Chandan Kumar +3 more
doaj +1 more source
Design of a 470 MHz band IoT antenna for a handheld terminal
Dianzi Jishu Yingyong, 2021 Many handheld terminal devices require a light and compact receiving and transmitting antenna. FPC antennas are popular among designers because of their light weight and thin thickness. In order to obtain an antenna with suitable size, bandwidth and gain,
Sun Nan +6 more
doaj +1 more source
Online Detection of Vacuum Level of Circuit Breaker Based on Terahertz Wave Return Loss
Journal of Harbin University of Science and Technology, 2022 For the online detection of vacuum degree in circuit breaker interrupter chamber, based on the principle of terahertz detection technology, the method of online detection of vacuum degree in circuit breaker using terahertz wave return loss is adopted ...
LUO Hong-hong +3 more
doaj +1 more source
Coaxial Low-Pass Filter Design and Manufacture
IEEE Access, 2023 In this study, a low-pass filter with coaxial transmission lines is designed and produced. The objective for designing a coaxial low-pass filter was to utilize both low-loss transmission and high breakdown voltage capability for high power microwave ...
E. Yilmaz, M. Ucuncu
doaj +1 more source
Frontiers in Physics, 2020 A novel periodic photonic crystal structure with through-holes drilled by a 4 × 7 array based on the line source analysis method was proposed in this paper to improve the gain and radiation of the microstrip antenna.
Zhendong Ding, Dan Zhang, Chunyu Ma
doaj +1 more source
Gysel Power Divider Realized by Ridge Gap Waveguide Technology
IEEE Access, 2021 The novel ridge-gap waveguide (RGW) technology which uses a full metal structure has many advantages in micro/mm-wave frequencies such as low loss, broad bandwidth, low sensitivity to manufacturing errors, and easy integration with active components, etc.
Abbas Karimi Nobandegani +1 more
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