Results 51 to 60 of about 85,450 (309)
Tuning the Resonance Frequency and Miniaturization of a Novel Microstrip Bandpass Filter
The Journal of Engineering Research, 2018 In this paper, a compact microstrip bandpass filter is designed using two open loop resonators. In order to obtain a tunable bandpass response with low insertion loss, two stubs are loaded inside them.
Abbas Rezaei, Leila Noori
doaj +1 more source
Transconductor and integrator circuits for integrated bipolar video frequency filters [PDF]
, 1989 A description is presented of novel transconductor and integrator circuits which can be used in integrated video frequency filters in bipolar technology.
Heij, W.J.A. de +2 more
core +2 more sources
Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering
Advanced Photonics Research, Volume 6, Issue 5, May 2025.Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik +7 more
wiley +1 more source
Advanced Electromagnetics, 2020 This work proposes a design of compact filter-antenna with fixed and frequency-agile bands for wireless communications and cognitive radio (CR) systems.
H. A. Atallah
doaj +1 more source
ECCCII-Based Current-Mode Universal Filter with Orthogonal Control of w_o and Q [PDF]
, 2014 This paper presents a new current-mode current-controlled four-input five-output universal filter employing one current-controlled current conveyor (CCCII), one electronically tunable CCCII and two grounded capacitors. The proposed configuration provides
Junnapiya, S. +4 more
core +1 more source
Etalon Array Reconstructive Spectrometry. [PDF]
, 2017 Compact spectrometers are crucial in areas where size and weight may need to be minimized. These types of spectrometers often contain no moving parts, which makes for an instrument that can be highly durable. With the recent proliferation in low-cost and
Huang, Eric, Liu, Zhaowei, Ma, Qian
core +2 more sources
Advanced Photonics Research, Volume 6, Issue 5, May 2025.Microfabrication using nano‐ to micron‐sized blocks has transformative potential for next‐gen electronics, optoelectronics, and materials. Traditional methods are limited by scalability and precision. STIC, a single‐laser system for precise colloid manipulation and immobilization using femtosecond lasers, is introduced that enables efficient 3D ...
Krishangi Krishna +4 more
wiley +1 more source
Optics Express, 2019 A tunable single- and dual-wavelength thulium-doped all-fiber laser is demonstrated based on the implementation of an in-fiber acousto-optic tunable bandpass filter (AOTBF). The AOTBF is fabricated to be operated in the 1.9 µm region, and takes advantage
E. Escobar +7 more
semanticscholar +1 more source
Tunable Versatile High Input Impedance Voltage-Mode Universal Biquadratic Filter Based on DDCCs [PDF]
, 2012 A high input impedance voltage-mode universal biquadratic filter with three input terminals and seven output terminals is presented. The proposed circuit uses three differential difference current conveyors (DDCCs), four resistors and two grounded ...
Jiun-Wei Horng +2 more
core +1 more source
Advanced Science, EarlyView.Fluorescent BODIPY‐conjugated thiosemicarbazone ligands and their Ga(III), In(III), and Fe(III) complexes, inspired by Triapine, are developed as theranostic agents. Multiphoton FLIM and confocal microscopy in cancer cells and zebrafish reveal real‐time uptake, mitochondrial localisation, and whilst spectroscopic assays indicated preserved complex ...
Megan J. Green +15 more
wiley +1 more source