Results 11 to 20 of about 374,441 (328)

COMPACT POLARIZATION PLANE ROTATOR AT A DEFINED ANGLE IN THE SQUARE WAVEGUIDE [PDF]

open access: yesРадиофизика и электроника, 2017
We have studied the possibility of designing compact polarization plane rotator electromagnetic waves on the basis of the structures with dihedral symmetry, and formed by 5-resonant slotted apertures with rectangular irises. The proposed structure allows
D. Yu. Kulik   +2 more
doaj   +1 more source

Ion-Exchanged Glass Waveguide Technology: A Review [PDF]

open access: yes, 2011
We review the history and current status of ion exchanged glass waveguide technology. The background of ion exchange in glass and key developments in the first years of research are briefly described.
Honkanen, Seppo   +2 more
core   +2 more sources

A New Class of Dual-Band Waveguide Filters Based on Chebyshev Polynomials of the Second Kind

open access: yesIEEE Access, 2020
This paper presents for the first time a method of mathematical synthesis involving chaining of Chebyshev polynomials of the second kind for the application of a dual-band waveguide filter. This method takes advantage of second kind Chebyshev polynomials
Yuhao Leong   +3 more
doaj   +1 more source

Effective Size Reduction of the Metallic Waveguide Bandpass Filter with Metamaterial Resonators and Its 3D-Printed Version

open access: yesSensors, 2023
In this paper, a novel method is proposed to effectively reduce the size of a waveguide bandpass filter (BPF). Because the metallic cavities make the conventional waveguide end up with a large geometry, especially for high-order BPFs, very compact ...
Junghyun Cho   +6 more
doaj   +1 more source

Substrate-Integrated Folded Waveguide Slot Antenna [PDF]

open access: yes, 2005
In recent years a number of researchers have proposed novel techniques for fabricating rectangular waveguide using microwave integrated circuit techniques.
Batchelor, John C.   +4 more
core   +1 more source

Recent Advances in Optical Hydrogen Sensor including Use of Metal and Metal Alloys: A Review

open access: yesPhotonics, 2023
Optical sensing technologies for hydrogen monitoring are of increasing importance in connection with the development and expanded use of hydrogen and for transition to the hydrogen economy.
Akhilesh Kumar Pathak   +5 more
doaj   +1 more source

Development of High Refractive Index Polydimethylsiloxane Waveguides Doped with Benzophenone via Solvent-Free Fabrication for Biomedical Pressure Sensing

open access: yesPhotonics, 2022
We present the fabrication and characterization of elastomeric optical waveguides, to be used for the manufacture of a conformable, water-resistant, and cost-effective pressure sensor that is amenable to the development of smart wearable health ...
Koffi Novignon Amouzou   +8 more
doaj   +1 more source

Features of planar metal/dielectric nanowaveguides

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2020
Results of analysis focused on dielectric/metal/dielectric and metal/dielectric/ metal symmetric nanowaveguides have been presented. The waveguides based on gold, silver and aluminum have been studied.
V.M. Fitio   +3 more
doaj   +1 more source

Efficient Photonic Crystal Cavity-Waveguide Couplers [PDF]

open access: yes, 2006
Coupling of photonic crystal (PC) linear three-hole defect cavities (L3) to PC waveguides is theoretically and experimentally investigated. The systems are designed to increase the overlap between the evanescent cavity field and the waveguide mode, and ...
Englund, Dirk   +4 more
core   +2 more sources

Magnetic-Optic Effect-Based Topological State: Realization and Application

open access: yesFrontiers in Materials, 2022
The topological state in photonics was first realized based on the magnetic-optic (MO) effect and developed rapidly in recent years. This review summarizes various topological states.
Xinyue Wang   +10 more
doaj   +1 more source

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