Results 51 to 60 of about 66,835 (307)

Compact UWB bandpass filter with reconfigurable notched band [PDF]

, 2013
A compact bandpass filter is presented for ultra-wideband (UWB) applications with a reconfigurable notched band to reject unwanted signals from the WiMAX systems. A single pin diode is used for the purpose of switching the notch.
Budimir, D., Athukorala, L., Vardaxoglou, J.C., Panagamuwa, C., Rabbi, K.M.F.   +4 more
core   +1 more source

Microsphere‐Templated Conductive Syntactic Foams for Recyclable and Additively Manufactured Soft Electronics

Advanced Healthcare Materials, EarlyView.
This work introduces a microsphere‐templated strategy to fabricate reprocessable PEDOT:PSS syntactic foams with tunable porosity, stable conductivity, and 3D printability. In situ PEDOT:PSS coatings create a conductive network that maintains electrical performance at high void fractions.
Gayaneh Petrossian, Yassine Diouri, Bolan Xu, Sara Ebrahimi, Atharva Pande, Floriane Miquet‐Westphal, Hang Xu, Fabio Cicoira   +7 more
wiley   +1 more source

Viral Infection‐Inspired Autonomous Detection of Fusion‐Competent Viruses for Screening and Environmental Surveillance

Advanced Materials, EarlyView.
Inspired by viral entry mechanisms, the FUSION assay enables autonomous detection of respiratory viruses via membrane fusion–triggered CRISPR‐Cas13a activation. VEACON selectively fuses with fusion‐competent viruses, triggering fluorescence within confined vesicles.
Jae Chul Park, Yidam Song, Hyun‐Woo Choi, Jaeuk Sung, Harin Jin, WonSeok Gwak, Kirim Yoo, Soohwang Lee, Jongeon Park, Jeongmin Kim, Hye‐Jun Jo, Jahyun Koo, Youngdo Jeong, Kwan Hyi Lee, Seung‐Jung Kee, Hojun Kim   +15 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, Wen Ju Liu, Shao Yong Zheng, Yong Mei Pan, Yuan Xin Li, Yun Liang Long   +5 more
doaj   +1 more source

Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment

Advanced Materials, EarlyView.
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud, Ryan W. Spangler, Johnathan D. Georgaras, Jonah B. Haber, Daniel Hirt, Maximilian Obst, Gonzalo Álvarez‐Pérez, Mackey Long III, Felix G. Kaps, Jakob Wetzel, Courtney Ragle, John E. Buchner, Youngji Kim, Aditha S. Senarath, Richarda Niemann, Mingze He, Giulia Carini, Unai Arregui‐Leon, Akash C. Behera, Ramachandra Bangari, Nihar Sahoo, Niels C. Brumby, J. Michael Klopf, Martin Wolf, Lukas M. Eng, Susanne C. Kehr, Thomas G. Folland, Alexander Paarmann, Patrick E. Hopkins, Felipe Jornada, Jon‐Paul Maria, Joshua D. Caldwell   +31 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, Hung-Wei Wu, Kuan-Jen Lin, Cheng-Yuan Hung, Yeong-Her Wang   +4 more
doaj   +1 more source

High-Order Input-Reflectionless Bandpass/Bandstop Filters and Multiplexers

IEEE transactions on microwave theory and techniques, 2019
A coupling-matrix approach for the theoretical design of a type of input-reflectionless RF/microwave bandpass filters (BPFs) and bandstop filters (BSFs) is presented.
R. Gómez‐García, J. Muñoz-Ferreras, D. Psychogiou   +2 more
semanticscholar   +1 more source

Tuning Technique for Active FSS Arrays [PDF]

, 2009
A novel biasing technique is described for active frequency selective slot arrays. The bandpass response can be switched between transmitting and reflecting modes, or tuned over a predetermined frequency range using two different biasing circuit ...
Parker, Edward A., Robertson, J.-B., Sanz-Izquierdo, Benito, Batchelor, John C.   +3 more
core   +1 more source

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

Advanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño, Luis A. Pérez, Carlota Ruiz De Galarreta, Théo Rouanet, M. Isabel Alonso, Agustín Mihi   +5 more
wiley   +1 more source

The Design Method of the Active Negative Group Delay Circuits Based on a Microwave Amplifier and an RL-Series Network

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, Ningdong Li, Blaise Ravelo, Qizheng Ji, Binhong Li, Junxiang Ge   +5 more
doaj   +1 more source