Results 71 to 80 of about 80,948 (300)

A Tunable Lumped-Element Bandpass Filter with Independent Continuous Tuning of Center Frequency and Bandwidth

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2016
An approach to design tunable bandpass filters on coupled series LC-tanks with variable capacitors is proposed. Such filters are shown able to provide an independent continuous tuning of center frequency and bandwidth.
A. E. Baskakova   +2 more
doaj  

Design of millimeter-wave bandpass filters with broad bandwidth in Si-based technology [PDF]

open access: yes, 2019
In this paper, a novel design approach is proposed for on-chip bandpass filter (BPF) design with improved passband flatness and stopband suppression. The proposed approach simply uses a combination of meander-line structures with metal-insulator-metal ...
Sun, Feng   +5 more
core   +2 more sources

High‐Transmission Mid‐Infrared Bandpass Filters using Hybrid Metal‐Dielectric Metasurfaces for CO2 Sensing

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This article presents a hybrid metal‐dielectric metasurface in transmission mode for mid‐infrared (MIR) spectroscopy. Composed of germanium on aluminium cylinders atop a calcium fluoride substrate, the metasurface achieves 80% transmission efficiency at λ = 2.6 µm with a narrow full‐width‐half‐maximum of 0.4 µm.
Amr Soliman   +5 more
wiley   +1 more source

Tunable lumped-element bandpass filters with constant bandwidth

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2015
Lumped-element bandpass filters using LC-tanks and immittance inverters are considered. Tuning of the central frequency is provided by using variable capacitors of LC-tanks and immittance inverters.
A. E. Baskakova   +2 more
doaj  

Designing of Hairpin-Line Band Pass Filters for DCS, UMTS and LTE-Systems [PDF]

open access: yes, 2015
Bandpass filters are essential components in any wireless systems. They are designed for selecting desired signal from other signals. Especially in crowded frequency spectrums, accurate filter characteristics are required to guarantee the performance of ...
Alaydrus, M. (Mudrik)   +1 more
core  

Linear phase cosine modulated maximally decimated filter banks with perfect reconstruction [PDF]

open access: yes, 1995
We propose a novel way to design maximally decimated FIR cosine modulated filter banks, in which each analysis and synthesis filter has a linear phase. The system can be designed to have either the approximate reconstruction property (pseudo-QMF system ...
Lin, Yuan-Pei, Vaidyanathan, P. P.
core   +1 more source

A Multi‐Resonant Tunable Fabry‐Pérot Cavity for High Throughput Spectral Imaging

open access: yesAdvanced Optical Materials, Volume 13, Issue 8, March 13, 2025.
This study introduces a multi‐resonant tunable Fabry‐Pérot filter for high throughput spectral imaging. With a spectral resolution of 10 nm and a switching time of 23 ms, this compact and low‐cost device possesses better spectral imaging accuracy in poor light conditions while maintaining over six times higher optical throughput than standard liquid ...
Xiao Wu   +5 more
wiley   +1 more source

Current-Mode Grounded-Capacitor Single-Element-Controlled Bandpass and Lowpass Filters

open access: yesActive and Passive Electronic Components, 1995
New circuit configurations for realizing bandpass and iowpass current-mode second-order filters are proposed. Each configuration uses a single first-generation current conveyor, a transconductance amplifier, three grounded capacitors, and two resistors ...
Muhammad Taher Abuelma'atti
doaj   +1 more source

Assignment on Filters, Source Coding and Channel Coding [PDF]

open access: yes
Considers bandpass filters, Huffman coding, arithmetic coding and Hamming ...
Maunder, Rob
core  

Bandpass filter design with spurious frequency reduction capability [PDF]

open access: yes, 2014
Passband microstrip coupled line filter are widely used in daily microwave engineering practice. There are various topologies to implement microstrip bandpass filters such as end-coupled, parallel coupled, hairpin, interdigital and combine filters.
Muda @ Ali, Rosnani
core  

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