Results 101 to 110 of about 10,885 (247)

Hybrid MIMO Patch Antenna Design for Enhanced Performance in 600 MHz–1 GHz Sub-6 GHz 5G Applications

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
The urgent deployment of fifth-generation (5G) communication networks necessitates wideband operation, high-gain, and stable multiple-input multiple-output (MIMO) performance antennas, especially in the sub-6 GHz frequency band.
Nabil Abdulwahab Abdulrazaq Baban
doaj   +1 more source

Plasmon–Exciton–Driven Modulation of the Electronic and Optical Properties of MoS2 via Cayley Tree Fractal Nanostructures

Journal of Raman Spectroscopy, Volume 57, Issue 6, Page 1040-1050, June 2026.
This work investigates the change in optical and electronic properties of monolayer MoS2 through the coupling of its excitons and a plasmonic fractal structure. The formation of the heterostructure shows significant enhancement on the edge of the fractal pattern relative to off, owing to the enhanced electric field at the edge of the branches.
Zeiad Saad, Cédric Lambin, Lorena Veliz, François Lagugné‐Labarthet   +3 more
wiley   +1 more source

Hybrid EBG Structure for Common-Mode Noise and SSN Suppression in Multilayer PCBs

IEEE Access
The advancement of modern technologies and the growing demand for high-speed communication systems that integrate digital and analog circuits into multilayer printed circuit boards (PCBs) require the development of efficient solutions to ensure signal ...
Jean Carlos Bortoli Dalcin, Marlio Jose Do Couto Bonfim   +1 more
doaj   +1 more source

Identification of Natural and Artificial Modifications in DNA at the Nanometer Level

Journal of Raman Spectroscopy, Volume 57, Issue 6, Page 995-1007, June 2026.
Short single‐ and double‐stranded DNA sequences with natural and artificial markers are examined at ambient conditions using TERS to identify and localize the labelled nucleobases. The differences between single‐ and double‐stranded DNA should provide clear experimental evidence of the extreme surface sensitivity of TERS.
Tanja Deckert‐Gaudig, Prabha Singh, Miklos Veres, Roman Holomb, Volker Deckert   +4 more
wiley   +1 more source

Linearly Polarized Metasurface Inspired Multi-Element Antenna for Aircraft Surveillance Applications

IEEE Access
A linearly polarized, compact, dual-band, high gain antenna is proposed for aircraft collision avoidance system (ACAS) or aircraft surveillance applications. The ACAS is an airborne electronic equipment developed to prevent mid-air collisions between two
M. Pallavi, Pramod Kumar, Tanweer Ali, Satish B. Shenoy   +3 more
doaj   +1 more source

Oxidative Stress in the Tumor Immune Microenvironment: Mechanisms and Therapeutic Perspectives

MedComm – Oncology, Volume 5, Issue 2, June 2026.
Oxidative stress is involved in several key processes in cancer, including redox regulation, DNA damage, post‐translational modifications, transcriptional regulation, epigenetic modifications, metabolic reprogramming, cell death, and immune modulation. These mechanisms collectively influence tumor progression, immune evasion, and therapeutic responses,
Zhen Wang, Bowen Li, Pan Tang, Fanchen Yan, Shuxin Wang, Guiying Leng, Panduo Dawa, Yuansi Chen, Yihan Guo, Pan Yang, Yi Li, Siyu Liu, Erdan Dong, Siyuan Qin, Zhoufeng Wang   +14 more
wiley   +1 more source

High-isolation microstrip two-port diplexer and full-duplex antenna with metamaterial-based filters

Discover Applied Sciences
This article presents an efficient and novel design of a microstrip three-terminal diplexer and a two-port full-duplex antenna system incorporating metamaterial-based filtering techniques to achieve high isolation and low insertion loss.
Rania Hamdy Elabd, Amr H. Hussein, Ahmed J. A. Al-Gburi   +2 more
doaj   +1 more source

Wearable Flexible Radio Frequency Filtering System for Muscle Contraction Monitoring

IEEE Journal of Microwaves
This paper introduces a dual band-pass and dual band-stop filter that is designed along its flexible back-end circuitry to sense and monitor muscle contractions.
Zaynab Attoun, Nader Shafi, Youssef Tawk, Joseph Costantine, Elie Shammas   +4 more
doaj   +1 more source

Study of microstrip lines with defected ground structures 

, 2008
Recientemente se ha incrementado el interés en el estudio de líneas de microcinta conestructuras en el plano de tierra (Defected Ground Structure, DGS).
Elizabeth Obiala Ezenwa
core  

New Types of Microstrip Filters Using Defected Grounds (Invited Paper)

, 2005
Using Finite Difference Time Domain (FDTD) and microwave circuit simulation tools the use of Defected Ground Structures (DGS) in microstrip low pass, band stop and band pass filters is investigated. The results obtained show that filters with very simple
Centeno, A.
core   +1 more source