Results 41 to 50 of about 205,675 (282)

Realization of dual-band topological states in Su–Schrieffer–Heeger-like photonic crystal slabs

open access: yesResults in Physics, 2023
We design the bilayer mirror-symmetric (I-shaped) photonic crystal slabs supporting dual-band topological edge states simultaneously, which is confirmed by the topological phases and localized field distributions.
Ying Chen   +4 more
doaj   +1 more source

Concurrent multiband low-noise amplifiers -- theory, design, and applications [PDF]

open access: yes, 2002
The concept of concurrent multiband low-noise-amplifiers (LNAs) is introduced. A systematic way to design concurrent multiband integrated LNAs in general is developed.
Hajimiri, Ali, Hashemi, Hossein
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

A 24/77 GHz Dual-Band Receiver for Automotive Radar Applications

open access: yesIEEE Access, 2019
A fully-integrated 24/77 GHz dual-band receiver is presented for automotive radar applications. The proposed receiver consists of a dual-band LNA, a dual-band sub-sampling PLL, and a wideband mixer, operating at 24 and 77 GHz alternatively.
Xiang Yi   +8 more
doaj   +1 more source

Novel Compact and High Selectivity Dual-band BPF with Wide Stopband [PDF]

open access: yes, 2012
A novel type of compact and high selectivity dual-band bandpass filter (BPF) incorporating a dual-mode defected ground structure resonator (DDGSR) and a dual-mode open-stub loaded stepped impedance resonator (DOLSIR) is proposed in this paper.
Guan, B.-R., Wang, L.
core   +1 more source

Simultaneous Dual Band Transmission Over Multimode Fiber-Fed Indoor Wireless Network [PDF]

open access: yes, 2006
Performance measurements of different combinations of digital enhanced cordless telecommunications packet radio service, global system for mobile communications, universal mobile telecommunication service, and 802.11g (54 Mbps) signals in a dual band ...
Batchelor, John C.   +7 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Self‐Powered UV Dual‐Band Photodetector Based on Cs3BiCl6/GaN Heterojunction for Logical Operation and Encrypted Photo‐Communication

open access: yesAdvanced Science
Dual‐band photodetectors have huge potential for application in secure optical communication, multicolor imaging, and logical operation. However, the majority of currently documented dual‐band photodetectors suffer from high energy consumption and poor ...
Jingli Ma   +11 more
doaj   +1 more source

Novel Sector Two-Dimensional Crest Factor Reduction Techniques for Performance Improvement in Dual-Band System

open access: yesIEEE Access, 2020
Currently, peak-to-average power ratio (PAPR) degrades the performance of the wireless system and has been widely studied in the orthogonal frequency division multiplexing (OFDM) systems.
Chen Changwei   +4 more
doaj   +1 more source

Dual Band Integrated Wideband Multi Resonating Patch Antenna for C–Band and Ku–Band Applications [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2019
A wideband antenna with dual band characteristic at 5.33/14.3GHz with resonating frequencies for wireless applications is presented. The strategy of the design is to introduce multiband in antenna band.
Karunesh Srivastava   +3 more
doaj   +1 more source

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