Results 11 to 20 of about 20,890 (228)

Constant absolute bandwidth tunable asymmetric order dual‐band BPF with reconfigurable bandwidth using mode control technique [PDF]

open access: yesIET Microwaves, Antennas & Propagation, 2021
Herein, a dual‐band bandpass filter with bandwidth tuning and constant bandwidth centre frequency tuning is presented, where the first and second bands are, respectively, of two and three modes.
Shriman Narayana   +2 more
doaj   +2 more sources

Microstrip tunable bandstop filter with constant absolute bandwidth

open access: yesJournal of Electromagnetic Waves and Applications, 2014
This paper presents a novel designing approach for tunable bandstop filters (BSPs) with constant absolute bandwidth (CABW). A simple bandstop unit is introduced to design tunable BSPs. Through the analysis, the bandwidth and center frequency of the unit can be fully controlled.
Qianyin Xiang   +2 more
exaly   +3 more sources

Miniaturized RF reconfigurable bandpass filter with dynamic wideband frequency and constant bandwidth tuning capability [PDF]

open access: yesScientific Reports
The paper presents a high selective reconfigurable band pass filter that has an adjustable center frequency and a constant absolute bandwidth tuning.
Mohd. Sazid   +3 more
doaj   +2 more sources

A 2-GS/s 35.9-fJ/conv.-step Voltage–Time Hybrid Pipelined ADC with Digital Background Calibration in 28-nm CMOS [PDF]

open access: yesMicromachines
This paper presents a 2-GS/s voltage–time hybrid pipelined analog-to-digital converter (ADC) with a 14-bit digital output, implemented in a 28-nm CMOS process.
Yuan Chang   +6 more
doaj   +2 more sources

Beyond peak wavelength: spectral bandwidth of blue and red-blue laser diodes modulates photosynthesis, canopy architecture, chlorophyll maintenance, and whole-plant growth [PDF]

open access: yesFrontiers in Plant Science
High planting densities in indoor horticulture often accelerate lower-leaf chlorophyll degradation, increasing trimming frequency, reducing effective photosynthetic area, and raising labor costs.
Lie Li   +4 more
doaj   +2 more sources

Widely Tunable TM-Mode Dielectric Filters With Constant Absolute Bandwidth Using Re-Entrant Caps

open access: yesIEEE Journal of Microwaves, 2023
This paper reports octave tunable dielectric combline bandpass filters with constant absolute bandwidth (CABW) using a novel re-entrant cap tuning technique.
Abdulrahman Widaa, Michael Hoft
doaj   +1 more source

Compact Planar Tunable Filter With Constant Absolute Bandwidth and Wide-Frequency Tuning Range Using DGS Coupling Structure

open access: yesIEEE Access, 2021
In this study, defected ground structures (DGSs) are applied in the coupling schemes of a planar tunable filter to achieve constant absolute bandwidth (CAB).
Yun Liu   +3 more
doaj   +1 more source

Quasi-Elliptic Higher-Order Tunable Bandpass Filter With Constant Absolute Bandwidth Using Synchronously Tuned Dual-Mode Resonators

open access: yesIEEE Access, 2023
Designing a higher-order tunable bandpass filter (BPF) with constant absolute bandwidth (ABW) and identical passband response at every passband frequency tuning state is considered a challenge.
Girdhari Chaudhary, Yongchae Jeong
doaj   +1 more source

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

Optical Micro-Wire Flow-Velocity Sensor

open access: yesSensors, 2021
This paper presents a short response time, all-silica, gas-flow-velocity sensor. The active section of the sensor consists of a 16 µm diameter, highly optically absorbing micro-wire, which is heated remotely by a 980 nm light source. The heated microwire
Matej Njegovec   +2 more
doaj   +1 more source

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