Results 51 to 60 of about 27,684 (298)
Electronic scanning of 2-channel monopulse patterns Patent [PDF]
Monopulse scanning network for scanning volumetric antenna ...
Schmidt, R. F.
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This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim +4 more
wiley +1 more source
Design of a Circularly-Polarized UHF Antenna for Partial Discharge Detection
In this work, a circularly-polarized ultra-high frequency (UHF) partial discharge (PD) antenna is proposed to detect the PD in 0.6 GHz - 1.7 GHz. The proposed PD antenna consists of an Archimedean spiral antenna, a balun, and a cavity.
Seungyong Park, Kyung-Young Jung
doaj +1 more source
Dual-Band RFID Tag Antenna Based on the Hilbert-Curve Fractal for HF and UHF Applications [PDF]
A novel single-radiator card-type tag is proposed which is constructed using a series Hilbert-curve loop and matched stub for high frequency (HF)/ultra high frequency (UHF) dual-band radio frequency identification (RFID) positioning applications.
Alibakhshikenari, Mohammad +4 more
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The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
wiley +1 more source
Compact TSA with Anti-Spiral Shape and Lumped Resistors for UWB Applications
A novel compact tapered-slot-fed antenna (TSA) with anti-spiral shape and lumped resistors is presented for ultra-wideband (UWB) applications. Unique coplanar waveguide (CPW) to coplanar strip (CPS) feeding structure and exponential slot are designed to ...
Xue-Ping Li +5 more
doaj +1 more source
Improved detection scheme for chipless RFIDs using prolate spheroidal wave function-based noise filtering [PDF]
A novel, highly sensitive scheme to detect the resonance peaks in the spectrum of chipless RFID signals is presented. The detection is based on finding the zeros in the derivative of the group delay of the received signal.
Dullaert, Wouter +2 more
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A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya +3 more
wiley +1 more source
Single-Arm Archimedean Spiral Antenna with Broadband Circular Polarization
In this paper, a single-arm Archimedean spiral (SAAS) antenna with broadband circular polarization is investigated. Unlike traditional single-arm Archimedean spiral antenna, the antenna arm consists of a hybrid meandered strip line and a smooth arc strip
Qingyuan Fang, Mengzhe Jin, Weidong Liu
doaj +1 more source
Towards Accurate Dielectric Property Retrieval of Biological Tissues for Blood Glucose Monitoring [PDF]
(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Foster, R, Hao, Y, Yilmaz, T
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