Results 41 to 50 of about 196,486 (281)
An efficient algorithm for downconverting multiple bandpass signals using bandpass sampling [PDF]
, 2001 Bandpass sampling is a useful alternative for direct digital downconversion in software radio. It significantly relaxes the analog-to-digital converter (ADC) sampling rate requirement and facilitates the design goal of moving the ADC as close as possible
Ng, TS, Wong, N
core +1 more source
Advanced Functional Materials, EarlyView.AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi +9 more
wiley +1 more source
New Current-Mode Bandpass Filters Using Three Single-Output ICCIIs
Active and Passive Electronic Components, 2007 New current-mode bandpass filters using three single outputs inverting second generation current conveyors (ICCII) are introduced. The first circuit uses two ICCII+ and one ICCII−, and realizes an inverting bandpass response.
Ahmed M. Soliman
doaj +1 more source
IEEE Access, 2018 This paper addresses a circuit theory regarding the negative group delay (NGD) principle. The methodology for characterizing this unfamiliar NGD function is described.
Fayu Wan +5 more
doaj +1 more source
IEEE Open Journal of Antennas and Propagation, 2020 Functional post-wall waveguides and waveguide based compact passive circuits - namely bandpass filters - that are formed by introducing additional metallic or dielectric posts inside the post-wall waveguide are analyzed.
Arkadi Akopian +8 more
doaj +1 more source
Low noise tuned amplifier [PDF]
, 1984 A bandpass amplifier employing a field effect transistor amplifier first stage is described with a resistive load either a.c. or directly coupled to the non-inverting input of an operational amplifier second stage which is loaded in a Wien Bridge ...
Kleinberg, L. L.
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Advanced Healthcare Materials, EarlyView.We characterized the distribution of cargo proteins associated with extracellular vesicles using various exogenous loading methods. In all cases, single‐particle analysis revealed that the distribution of protein content per EV is heterogeneous, following an exponential decay function.
Karl Normak +6 more
wiley +1 more source
Vias and Stubs Loaded Patch and Its Applications in Filter and Rectifier Designs
IEEE Access, 2017 It is always advantageous to include additional bandpass filtering functionality within different circuits and components in the wireless communication system, and thus, a novel circular patch loaded with vias and stubs is proposed as the basic element ...
Bing Jie Xiang +5 more
doaj +1 more source
Fluorescent Polymeric Nanofibers as Ratiometric Multiplexed Skin Sensors of pH and Oxygen
Advanced Healthcare Materials, EarlyView.Fluorescent polymeric nanofibers and nanorods are produced as ratiometric sensors of two important physiological parameters: pH and oxygen. They operate by dual Forster resonance energy transfer from large number of energy donor dyes to limited number of two distinct energy acceptors, enabling simultaneous sensing of pH and oxygen.
Rémi Pelletier +2 more
wiley +1 more source
New Transparent Bandpass Filter Using Aluminum Thin-Film Micromesh Structure
IEEE Access, 2019 In this study, we present the new transparent coplanar waveguide (CPW) bandpass filter using aluminum (Al) thin film micromesh structure. The filter is prepared by the semiconductor process of dc sputtering and standard lift-off technology.
Tzu-Chun Tai +4 more
doaj +1 more source