Results 51 to 60 of about 6,144 (263)
High-Order Dual-Port Quasi-Absorptive Microstrip Coupled-Line Bandpass Filters [PDF]
, 2020 In this article, we present the first demonstration of distributed and symmetrical all-band quasi-absorptive filters that can be designed to arbitrarily high orders.
Li, Y, Liu, X, Wu, X
core
Analysis of DGS filters using π‐circuit model
Engineering Reports, 2020 The design and analysis of two defected ground structures (DGS)‐based filters have been proposed in this article. The first is a multifrequency bandstop filter (BSF) which utilizes a semi‐H defect in the ground plane. This structure is then prototyped on
Sambhav Malhotra, Mohammad Hashmi
doaj +1 more source
Design and Realization of Chebyshev Bandstop Filters Based on Ceramic Resonators [PDF]
Advances in Radio Science, 2021 Distributed bandpass or band-reject filters generally become larger as the design center frequency decreases. To achieve suitable filters with small dimensions even at center frequencies below 2 GHz, ceramic resonators can be used.
J. F. Tiede, T. F. Eibert
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Wireless interrogation of an optically modulated resonant tunnelling diode oscillator [PDF]
, 2013 n this work, a resonant tunnelling diode-photo-detector based microwave oscillator is amplitude modulated using an optical signal. The modulated free running oscillator is coupled to an antenna and phase locked by a wireless carrier that allows remote ...
Cantu, H.I. +5 more
core +2 more sources
Wideband bandstop filter based on quasi-fractal structure
Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023 Relevance. The creation of new high-performance designs of broadband frequency-selective devices is one of the priority tasks in modern microwave technology.
S.A. Pogarsky, D.V. Mayboroda
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Signal interference RF photonic bandstop filter
Optics Express, 2016 In the microwave domain, signal interference bandstop filters with high extinction and wide stopbands are achieved through destructive interference of two signals. Implementation of this filtering concept using RF photonics will lead to unique filters with high performance, enhanced tuning range and reconfigurability. Here we demonstrate an RF photonic
Iman, Aryanfar +6 more
openaire +2 more sources
Novel Bandstop Filter With Improved Flat NGD Characteristics and Signal Attenuation in Passband
IEEE AccessA bandstop filter with flat negative group delay (NGD) is proposed. The flatter NGD and reduced insertion loss have been achieved in the passband of the bandstop filter.
Aixia Yuan +5 more
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Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings
Advanced Science, EarlyView.Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini +5 more
wiley +1 more source
Lossy Asymmetrical Bandstop Filter Based on a Multiple Triplet Realization
IEEE Access, 2018 This paper presents the realization of a lossy asymmetrical bandstop filter prototype on a microstrip planar structure using multiple Triplet sections. The realization of a single Triplet section on a microstrip structure is proposed and discussed.
Socheatra Soeung +2 more
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Tunable and reconfigurable bandstop filters enabled by optically controlled switching elements
Electronics Letters, 2022 The authors report a novel approach for designing tunable and reconfigurable bandstop filters by employing bias‐free optically‐controlled photoconductive radio frequency (RF) switching elements.
Peizhao Li +4 more
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