Results 31 to 40 of about 666,483 (294)

Contribution to the design of continuous -time Sigma - Delta Modulators based on time delay elements [PDF]

, 2008
The research carried out in this thesis is focused in the development of a new class of data converters for digital radio. There are two main architectures for communication receivers which perform a digital demodulation.
Prefasi Sen, Enrique José, Prefasi Sen, Enrique   +1 more
core   +1 more source

Design of a Microstrip Dual-Band Bandpass Filter Using Novel Loaded Asymmetric Two Coupled Lines for WLAN Applications [PDF]

Journal of Electrical and Computer Engineering Innovations, 2020
Background and Objectives: Due to the rapid development in wireless communications, bandpass filters have become key components in modern communication systems. Among the microwave filter technologies, planar structures of microstrip line are chosen, due
R. Salmani, A. Bijari, S. H. Zahiri
doaj   +1 more source

Highly linear microstrip wideband bandpass filter with switchable notched band for wireless applications [PDF]

, 2013
This article presents a highly linear reconfigurable bandpass filter embedded with a switchable notch structure to get a band-notched characteristic at a specified frequency.A single PIN diode (BAP65-02) is used for the purpose of switching the notch. An
D. Budimir, J. C. Vardaxoglou, Chinthana Panagamuwa (1258632), D. Budimir (7204880), Athukorala, L., Vardaxoglou, J.C., K. Rabbi (7204877), L. Athukorala, Panagamuwa, C., Budimir, D., C. Panagamuwa, Rabbi, K.M.F., K. Rabbi, L. Athukorala (7210763), J. C. Vardaxoglou (1257960)   +14 more
core   +1 more source

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

FEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

RF MEMS Based Tunable Bowtie Shaped Substrate Integrated Waveguide Filter [PDF]

Radioengineering, 2015
A tunable bandpass filter based on a technique that utilizes substrate integrated waveguide (SIW) and double coupling is presented. The SIW based bandpass filter is implemented using a bowtie shaped resonator structure.
M. Z. Ur Rehman, Z. Baharudin, M. A. Zakariya, M. H. M. Khir, M. T. Jilani   +4 more
doaj  

Digital frontend design for three-bands aliasing RF signals

Dianzi Jishu Yingyong, 2019
In order to solve the problem of three-band bandpass signal aliasing, a delay-adjustable third-order bandpass sampling structure is proposed. By designing a digital anti-aliasing filter, the alias-free reception of three-band bandpass signals can be ...
Wang Hongmei, Yao Chong, Wang Faguang, Li Shiyin, Song Jinling   +4 more
doaj   +1 more source

Elevated Connectivity During Language Processing Is Associated With Cognitive Performance in SeLECTS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Self‐Limited Epilepsy with Centrotemporal Spikes (SeLECTS) is associated with language impairments despite seizures originating in the motor cortex, suggesting aberrant cross‐network interactions. Here we tested whether functional connectivity in SeLECTS during language tasks predicts language performance.
Wendy Qi, Katharine Lee, Kerry C. Nix, Miguel Menchaca, Xiwei Shé, Lorelei Santa Maria, Wei Wu, Zihuai He, Fiona M. Baumer   +8 more
wiley   +1 more source

High‐Efficiency Quantum Defect Generation in Carbon Nanotubes via Oxygen‐Free Photochemistry

Advanced Functional Materials, EarlyView.
We show that oxygen plays an important role in quantum defect formation in carbon nanotubes and identify reaction conditions to create a range of different quantum defects for photonics and biosensing. ABSTRACT Single‐walled carbon nanotubes (SWCNTs) offer potential for a wide range of applications from optoelectronic devices to biomedical diagnostics.
Christina Derichsweiler, Valeriia D. Andreeva, Jan Stegemann, Julia Ackermann, Janus A. C. Wartmann, Svenja Herbertz, Sebastian Kruss   +6 more
wiley   +1 more source

Switchable and Tunable Microwave Photonic Brillouin-Based Filter

IEEE Photonics Journal, 2012
A new structure that realizes a switchable microwave photonic filter, which can be readily switched between a bandpass filter and a notch filter, is presented.
Weiwei Zhang, Robert A. Minasian
doaj   +1 more source

5G HAIRPIN BANDPASS FILTER

Jordanian Journal of Computers and Information Technology, 2021
In this paper, Hairpin Bandpass Filter (HPBF) is designed, simulated and fabricated at two 5G low-frequency bands: 3.7 GHz - 4.2 GHz and 5.975 GHz -7.125 GHz.
Sahar Saleh, Widad Ismail, Intan Sorfina Zainal Abidin, Mohd Haizal Jamaluddin, Mohammed H. Bataineh, Asem S. Alzoubi   +5 more
doaj   +1 more source