Results 21 to 30 of about 85,450 (309)

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

Tunable bandpass microwave photonic filter with largely reconfigurable bandwidth and steep shape factor based on cascaded silicon nitride micro-ring resonators.

open access: yesOptics Express, 2023
Bandpass microwave photonic filter (MPF) can be achieved based on the well-known phase to intensity conversion method by using phase modulation and single micro-ring resonator (MRR) notch filter.
Wei Cheng   +12 more
semanticscholar   +1 more source

Tunable Bandpass Filter With Serially Coupled Ring Resonators Assisted MZI

open access: yesIEEE Photonics Journal, 2021
We present the analytical modelling and experimental characterization of a new design of silicon nitride tunable bandpass filter based on serially coupled ring resonators assisted Mach-Zehnder interferometer (SR-MZI). SR-MZI filters provide an additional
Niharika Kohli   +3 more
semanticscholar   +1 more source

Frequency Tunable Non-Reciprocal Bandpass Filter Using Time-Modulated Microstrip λg/2 Resonators

open access: yesIEEE Transactions on Circuits and Systems - II - Express Briefs, 2021
This brief presents a novel frequency reconfigurable microstrip non-reciprocal bandpass filter based on time-modulated microstrip $\lambda _{g}/2$ resonators.
Xiaohu Wu   +4 more
semanticscholar   +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

High-gain erbium-doped fiber amplifier incorporating a double-pass amplification technique as a preamplifier [PDF]

open access: yes, 2008
We present a high-gain erbium-doped fiber amplifier to be utilized as a preamplifier. A double-pass amplification technique is used in the first-stage amplifier together with a tunable bandpass filter.
Abdullah, Mohamad Khazani   +2 more
core   +1 more source

Multifunctional photonic integrated circuit for diverse microwave signal generation, transmission and processing [PDF]

open access: yes, 2019
Microwave photonics (MWP) studies the interaction between microwave and optical waves for the generation, transmission and processing of microwave signals (i.e., three key domains), taking advantages of broad bandwidth and low loss offered by modern ...
Cao, Zizheng   +11 more
core   +2 more sources

An Ultra-Compact On-Chip Reconfigurable Bandpass Filter With Semi-Lumped Topology by Using GaAs pHEMT Technology

open access: yesIEEE Access, 2020
A semi-lumped reconfigurable on-chip bandpass filter with GaAs pHEMT technology is presented in this paper. Three order tunable bandpass filter is designed with serial lumped capacitors, parallel resonators, and reconfigurable components.
Hao-Ran Zhu   +3 more
doaj   +1 more source

Bandwidth Tunable Optical Bandpass Filter Based on Parity-Time Symmetry

open access: yesMicromachines, 2022
A chip-scale tunable optical filter is indispensable to meeting the demand for reconfigurability in wavelength division multiplexing systems, channel routing, and switching, etc.
Bowen Zhang   +6 more
semanticscholar   +1 more source

TTF: a flexible approach to narrowband imaging [PDF]

open access: yes, 1997
The Taurus Tunable Filter (TTF) is a tunable narrowband interference filter covering wavelengths from 6300 A to the sensitivity drop-off of conventional CCDs (9600 A), although a blue `arm' (3700-6500 A) is to be added by the end of 1997.
Bland-Hawthorn, J., Jones, D. H.
core   +3 more sources

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