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Compact Wide-Frequency Tunable Filter With Switchable Bandpass and Bandstop Frequency Response

open access: yesIEEE Access, 2019
In this paper, a novel compact wide-frequency tunable filter with switchable bandpass and bandstop frequency response is presented. By employing two PIN diodes between the source and load port, the bandpass and bandstop filtering response can be switched,
Kaijun Song   +5 more
doaj   +3 more sources

0.7-1.0-GHz Switchable Dual-/Single-Band Tunable Bandpass Filter Using a Switchable J-Inverter

open access: yesIEEE Access, 2021
Cognitive radios require tunable band-switchable bandpass filters to respond to the dynamically changing operating frequencies in cognitive systems.
Young-Ho Cho   +2 more
doaj   +3 more sources

Simulation Study on Tunable Terahertz Bandpass Filter Based on Metal–Silicon–Metal Metasurface

open access: yesPhotonics
Metasurface devices have demonstrated powerful electromagnetic wave manipulation capabilities. By adjusting the shape and size parameters of the metasurface microstructure, we can control the resonance between spatial electromagnetic waves and the ...
Wenjun Liu, Jitao Li
doaj   +3 more sources

Design of Tunable Coaxial Bandpass Filter Based on Embedded Stepped Impedance Resonators

open access: yesIEEE Access, 2023
This paper describes a method for designing tunable coaxial bandpass filters based on an inserted coaxial stepped impedance resonator (SIR). The miniaturization of the coaxial resonator is realized by the shape of the stepped impedance structure.
Xubin Zhou, Junjie Huo
doaj   +1 more source

Bandpass Biomedical Color Filter Based on 1-D Photonic Crystal Structure [PDF]

open access: yesInternational Journal of Biophotonics and Biomedical Engineering, 2021
We propose a flexible design for tunable bandpass biomedical color filter based on one-dimensional photonic crystals with introducing defect layers into one dimensional periodic structure which permits localized modes to exist with frequency inside ...
Hamed Alipour-Banaei   +1 more
doaj   +1 more source

A Wideband Controllable Bandpass Filter Based on Spoof Surface Plasmon Polaritons

open access: yesFrontiers in Physics, 2022
A wideband controllable band-pass filter is proposed, which is based on the spoof surface plasmon polaritons (SSPP) and slip ring resonators (SRR). The design concept of the bandpass filter is using the SSPP and SRR to control the high cut-off frequency ...
Xi Chen   +3 more
doaj   +1 more source

Effective strategy for accessing the multi-pulse regime of mode-locked fiber lasers [PDF]

open access: yesEPJ Web of Conferences, 2023
We unveil a strategy for configuring mode-locked fiber lasers by means of a tunable bandpass filter, which allows multi-pulse structures to be generated without distortions in their intensity profiles, with significantly reduced pumping power levels.
Tchofo-Dinda Patrice   +3 more
doaj   +1 more source

Simple Coupled-Line Tunable Bandpass Filter With Wide Tuning Range

open access: yesIEEE Access, 2020
In this paper, a tunable bandpass filter using coupled line with a wide tuning range is proposed. The proposed filter has a simple structure which is composed of a coupled-line section and two pairs of varactors.
Xiaoxiao Chen   +3 more
doaj   +1 more source

Soft radio frequency microstrip bandpass filter: Precise design and demonstration

open access: yesAIP Advances, 2023
A soft and tunable microwave bandpass Chebyshev microstrip end-coupled filter is demonstrated on a polydimethylsiloxane substrate based on high electrically conductive composites made of silver nanoparticle-covered flakes, even with large strain.
Wei He   +7 more
doaj   +1 more source

All-Fiber Acousto-Optic Tunable Bandpass Filter Based on a Lateral Offset Fiber Splicing Structure

open access: yesIEEE Photonics Journal, 2015
An all-fiber acousto-optic tunable bandpass filter has been proposed and experimentally demonstrated by fabricating a lateral offset fiber splicing structure between the lead-in single-mode fiber and acoustic fiber grating.
Hao Zhang   +4 more
doaj   +1 more source

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