Results 21 to 30 of about 137,045 (307)
, 2022 Tunable filters enable dynamic spectrum access for the wireless systems, and the tunable bandpass filters with constant bandwidth (BW) are most favorable for practical applications. This chapter investigates the synthesis and realization techniques for the tunable filters using the coupling matrix with variable entries synthesizes the tunable filter ...
openaire +2 more sources
Role of Nanoimprint Lithography for Strongly Miniaturized Optical Spectrometers
Nanomaterials, 2021 Optical spectrometers and sensors have gained enormous importance in metrology and information technology, frequently involving the question of size, resolution, sensitivity, spectral range, efficiency, reliability, and cost.
Hartmut Hillmer +7 more
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Calculated and measured transmittance of a tunable metallic photonic crystal filter for terahertz frequencies [PDF]
, 2003 A tunable metallic photonic crystal filter with a mechanical tuning mechanism is demonstrated. The performance is predicted with rigorous full-vector electromagnetic simulations (finite-difference time domain).
Blaikie, R.J. +2 more
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Design of programmable multi-wavelength tunable filter on lithium niobate
Results in Physics, 2019 Tunable optical filters have a wide range of applications, especially in optical sensing systems and optical communication systems. In this letter, a programmable multi-wavelength tunable filter on Lithium Niobate (LN) is designed.
Yuan Yao +6 more
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LOW PASS AND QUAD BAND PASS TUNABLE FILTER BASED ON STUB RESONATOR TECHNIQUE [PDF]
Jordanian Journal of Computers and Information Technology, 2019 An electronically tunable multi-passband filter using one varactor diode is implemented based on transmission line stub method for passing several most favourable applications through multiple operating bands.
Yanal S. Faouri +3 more
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Power-Efficient Electronically Tunable Fractional-Order Filter
Fractal and Fractional, 2023 This article describes a low-voltage, low-power fractional-order low-pass filter (FO-LPF) of order 1 + α, which is implemented using a voltage differencing differential difference amplifier (VDDDA).
Sadaf Tasneem +3 more
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Curvature induced magnonic crystal in nanowires [PDF]
, 2019 A new type of magnonic crystals, curvature induced ones, is realized in ferromagnetic nanowires with periodically deformed shape. A magnon band structure of such crystal is fully determined by its curvature: the developed theory is well confirmed by ...
Brink, Jeroen van den +5 more
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Tunable Active Band-Pass RC-Filter
Известия высших учебных заведений России: Радиоэлектроника, 2018 This article provides a technique for design and simulation of an active second order band-pass filter with lineal tuning of Q-factor and independent tuning over a wide range of resonant frequency and transfer coefficient. The tunable band-pass RC-filter
Yu. M. Inshakov, A. V. Belov
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IEEE Access, 2020 Based on tapered Triple-Core Photonic Crystal Fiber (TCPCF), a high performance tunable Dual-Wavelength Erbium-Doped Fiber Laser (DW-EDFL) is proposed and experimentally demonstrated.
Zijuan Tang +6 more
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Control of broad-area vertical-cavity surface emitting laser emission by optically induced photonic crystals [PDF]
, 2008 We control the emission properties of a broad-area vertical-cavity surface emitting laser by coupling it to an external feedback cavity containing a photorefractive crystal with an optically induced photonic lattice.
Ackemann, T. +4 more
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