Results 21 to 30 of about 28,555 (206)

Windowed Green Function Method for Nonuniform Open-Waveguide Problems [PDF]

open access: yes, 2016
This contribution presents a novel Windowed Green Function (WGF) method for the solution of problems of wave propagation, scattering and radiation for structures which include open (dielectric) waveguides, waveguide junctions, as well as launching and/or
Bruno, Oscar   +2 more
core   +2 more sources

Novel High-Q Partially Air-Filled Pedestal Resonator and Filter Integrated in a Printed Circuit Board (PCB)

open access: yesIEEE Access, 2022
In this paper, a resonator and second order filter are fabricated using a novel technological process based on micromachining and thermo-diffusion. The use of this innovative process opens the way to the design of RF components relying on partially air ...
Leanne Johnson   +6 more
doaj   +1 more source

The next generation textile antennas based on substrate integrated waveguide technology [PDF]

open access: yes, 2014
Textile antennas for body-worn applications have some very specific requirements and needs. From an electrical engineer's point of view, good radiation characteristics and impedance matching to the active electronics are important.
Agneessens, Sam   +4 more
core   +2 more sources

Braiding properties of the N=1 super-conformal blocks (Ramond sector) [PDF]

open access: yes, 2011
Using a super scalar field representation of the chiral vertex operators we develop a general method of calculating braiding matrices for all types of N=1 super-conformal 4-point blocks involving Ramond external weights.
Chorazkiewicz, Damian   +2 more
core   +2 more sources

Four-element ultrawideband textile cross array for dual-spatial and dual-polarization diversity [PDF]

open access: yes, 2017
The emergence of miniaturized flexible electronics enables on-duty first responders to collect biometrical and environmental data through multiple on-body sensors, integrated into their clothing. However, gathering these life-saving data would be useless
Castel, Thijs   +4 more
core   +2 more sources

Dual-band substrate integrated waveguide textile antenna with integrated solar harvester [PDF]

open access: yes, 2014
A dual-band wearable textile antenna based on substrate integrated waveguide technology is presented for operation in the [2.4-2.4835]-GHz Industrial, Scientific and Medical band and the [2.5-2.69]-GHz 4G LTE band 7.
Declercq, Frederick   +2 more
core   +1 more source

Millimeter Wave Substrate Integrated Waveguide Antennas: Design and Fabrication Analysis [PDF]

open access: yes, 2009
The paper presents a new concept in antenna design, whereby a photo-imageable thick-film process is used to integrate a waveguide antenna within a multilayer structure. This has yielded a very compact, high performance antenna working at high millimeter-
Batchelor, John C.   +4 more
core   +1 more source

Nose-Cone Conformal Substrate-Integrated Waveguide Slot Array Antenna for X-Band Radar Applications

open access: yesInternational Journal of Antennas and Propagation, 2019
This paper presents the design of nose-cone conformal substrate-integrated waveguide (SIW) slot array antenna for modern radar applications. Firstly, the wave propagation characteristics have been investigated in doubly curved SIW, and it has been ...
Hisham Khalil   +2 more
doaj   +1 more source

Optimization Methodology of Multiple Air Hole Effects in Substrate Integrated Waveguide Applications [PDF]

open access: yesJournal of the Korean Institute of Electromagnetic Engineering and Science, 2018
A wide spectrum of potential applications using substrate integrated waveguide (SIW) technologies in conjunction with air hole regions is introduced, and an efficient optimization methodology to cope with the multiple air hole effect in SIW applications ...
Jin-Yang Kim   +3 more
doaj   +1 more source

Letterer-Siwe disease

open access: yesHealth and Ecology Issues, 2018
The article describes a case of Letterer-Siwe disease (Langerhans cells histocytosis, histiocytosis X) in a 1-year-old infant, presents the authors` own observations focusing on the macroscopic and histological picture of skin lesions. The work also notes difficulties of diagnosis of this disease.
I. F. Shalyga   +4 more
openaire   +2 more sources

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