Results 101 to 110 of about 2,584,379 (263)
Advanced Materials Technologies, EarlyView.The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti +6 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.Hybrid‐filled voxel AM enables integration of high‐permittivity materials into additively manufactured devices. Using this approach, a graded refractive index (GRIN) lens is demonstrated, achieving a 50% antenna size reduction with enhanced directivity.
Qianfang Zheng +4 more
wiley +1 more source
Attempting an Affirmative Approach to American Broadcasting: Ideology, Politics, and the Public Telecommunications Facilities Program [PDF]
, 2014 The Public Telecommunications Facilities Program (PTFP) was the largest source of capital funding for U.S. public broadcasters for nearly fifty years.
Huntsberger, Michael W.
core +1 more source
Fiber Bragg Gratings with Micro‐Engineered Temperature Coefficients
Advanced Optical Materials, Volume 13, Issue 8, March 13, 2025.Fiber Bragg gratings (FBGs) are intrinsically responsive to temperature and strain simultaneously. In this research, low‐loss FBGs with micro‐engineered temperature coefficients are fabricated, utilizing refractive index liquid‐filled microchannels in the cladding.
Zipei Song +8 more
wiley +1 more source
Effect of Location Accuracy and Shadowing on the Probability of Non-Interfering Concurrent Transmissions in Cognitive Ad Hoc Networks [PDF]
, 2013 Cognitive radio ad hoc systems can coexist with a primary network in a scanning-free region, which can be dimensioned by location awareness. This coexistence of networks improves system throughput and increases the efficiency of radio spectrum ...
Alfonso, Vitalio +4 more
core +1 more source
Group Delay Dispersion Measurements on Mid‐Infrared Supermirrors
Advanced Optical Materials, EarlyView.Group delay dispersion of novel semiconductor‐based optics is measured in the mid‐infrared spectral range (2.5 to 4.8 μm$\rm \umu{\rm m}$). Comparisons are made between simulations, measurements conducted with a home‐built white light interferometer, and measurements performed with a commercially available FTIR.
Ulrich Galander +3 more
wiley +1 more source
Scientific ReportsThe sixth-generation (6G) technology is expected to revolutionize mobile communication, fostering the emergence of novel services driven by societal needs. This work explores the potential of 6G in facilitating seamless robotic service delivery.
Varvara Mineeva +6 more
doaj +1 more source
Near‐Infrared Lifetime Nanothermometry Detects Microwave‐Induced Brain Heating
Advanced Optical Materials, EarlyView.Ag2S near‐infrared lifetime nanothermometers enable remote, minimally invasive readout of absolute brain temperature in vivo during telecommunication‐grade 3 GHz microwave exposure. Temperature‐dependent luminescence decay tracks real‐time heating in deep tissue, revealing rises approaching 4 °C and allowing systematic assessment of exposure parameters,
Liyan Ming +9 more
wiley +1 more source
German telecommunications satellite (Deutscher fernmelde satellit) (DFS-1 and -2) [PDF]
The German Telecommunications Satellite (DFS) Program is to provide telecommunications service for high data rate transmission of text and video data to the Federal Republic of Germany within the 11-14 GHz and 20-30 GHz bands.
Hiendlmeier, G., Schmeller, H.
core +1 more source