Results 61 to 70 of about 5,325 (221)

Smaller SPS system sizing tradeoffs [PDF]

open access: yes, 1980
The solar power satellite and associated microwave system was reoptimized with larger antennas (at 2.45 GHz), reduced output powers, and smaller rectennas. Four constraints were considered: (1) the 23 mw/sq cm ionospheric limit; (2) a higher (54 mW/sq cm)
Arndt, G. D., Monford, L.
core   +1 more source

A High-Efficiency and Wide-Input Range RF Energy Harvester Using Multiple Rectenna and Adaptive Matching

open access: yesEnergies, 2020
In this paper, a Radio Frequency (RF) energy harvester (EH) system for Internet of Things (IoT)-related applications is presented. The proposed EH architecture operates at 5.2 GHz band and utilizes multiple rectenna. This approach enhances the efficiency
Hamed Abbasizadeh   +12 more
doaj   +1 more source

Environmental assessment overview [PDF]

open access: yes, 1980
The assessment program has as its objectives: to identify the environmental issues associated with the SPS Reference System; to prepare a preliminary assessment based on existing data; to suggest mitigating strategies and provide environmental data and ...
Valentino, A. R.
core   +1 more source

Semiconductor‐to‐metal transition in platinum dichalcogenides induced by niobium dichalcogenides

open access: yesInfoMat, Volume 7, Issue 6, June 2025.
Platinum dichalcogenides exhibit a semiconductor‐to‐metal transition when grown on niobium dichalcogenides, regardless of their layer numbers. Abstract Metallizing 2D semiconductors is a crucial research area with significant applications, such as reducing the contact resistance at metal/2D semiconductor interfaces.
Lei Zhang   +9 more
wiley   +1 more source

A Dual-Band Ambient Energy Harvesting Rectenna Design for Wireless Power Communications

open access: yesIEEE Access, 2021
In this paper, a long-range dual-band rectenna for harvesting ambient radio frequency (RF) energy from GSM/900 and GSM/1800 is presented. Theoretical analysis of the proposed dual-band impedance matching network (IMN) is conducted using a modified $\Pi $
Surajo Muhammad   +5 more
doaj   +1 more source

Wireless Power and Data Transfer Technologies for Flexible Bionic and Bioelectronic Interfaces: Materials and Applications

open access: yesAdvanced Materials Technologies, Volume 10, Issue 5, March 4, 2025.
This paper reviews the state‐of‐the‐art and recent advances in bio‐integrated wireless power and data transfer technologies for flexible bionics, wearable and implantable bioelectronics. The architectures, operating principles, materials, and application technologies are presented in detail.
Massimo Mariello, Christopher M. Proctor
wiley   +1 more source

Heterogeneous E‐Textiles: Materials, Manufacturing and Sustainability

open access: yesAdvanced Materials Technologies, Volume 10, Issue 3, February 5, 2025.
This review presents the state of the art in e‐textile materials (e.g., yarns, inks), manufacturing (e.g., weaving, knitting, printing), electronic integration and interconnections. The review also considers the key principles of textile sustainability and e‐waste management, which provide useful guidance on e‐textile design and manufacturing to ...
Stephen P. Beeby   +6 more
wiley   +1 more source

Microwave system performance summary [PDF]

open access: yes, 1980
The design of the microwave system for the solar power satellite is described. Design modifications recommended include changes in phase control to the power module level, a reduction in allowable amplitude jitter, the use of metal matrix waveguides, and
Arndt, G. D., Nalos, E. J.
core   +1 more source

Smart and Secure Wireless Power Transfer for EVs: Exploring IoT, Edge Computing and Blockchain Solutions

open access: yesIET Electrical Systems in Transportation, Volume 2025, Issue 1, 2025.
Wireless power transfer (WPT) has been developed as a transformative alternative to traditional plug‐in charging for electric vehicles (EVs), offering significant developments in mobile charging. EVs are charged while moving on the roads. This review provides a comprehensive overview of various WPT technologies, including inductive power transfer (IPT),
Gaurav Kumar   +3 more
wiley   +1 more source

A Wideband Rectenna Using High Gain Fractal Planar Monopole Antenna Array for RF Energy Scavenging

open access: yesInternational Journal of Antennas and Propagation, 2020
This paper introduces a wideband rectenna that can scavenge ambient wireless power to a range of frequency band from 0.91 GHz to 2.55 GHz efficiently. The proposed rectenna is based on a wideband 2 × 2 fractal monopole antenna array with omnidirectional ...
Mohammad M. Fakharian
doaj   +1 more source

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