Results 61 to 70 of about 43,882 (226)

Design of microstrip patch antenna for IEEE 802.16-2004 applications [PDF]

open access: yes, 2011
This thesis presents microstrip patch antenna IEEE 802.16-2004 standards for microwave applications and WiMax. Narrow bandwidth (BW) is the main defect of microstrip patch antenna in wireless communication.
Al-Rawachy, Ehab Esam Dawood
core  

A Review of Black Phosphorus‐Based Materials: From Preparation Strategies to Characterization Techniques

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The structure, properties, preparation methods, and characterization techniques of BP. As a typical 2D layered material, black phosphorus (BP) demonstrates exceptional promise in various fields, particularly in energy storage for alkali metal‐ion batteries. However, its distinctive structure and properties, together with the compositional complexity of
Yunqing Wang   +7 more
wiley   +1 more source

Rancang Bangun Antena Mikrostrip Meander-line 915 MHz untuk Optimasi Jarak Pengiriman Data Alat Ukur pH Meter Sistem Telemetri

open access: yesJurnal Rekayasa Elektrika, 2017
In recent years the use of wireless technology is growing rapidly. Not only limited to the use of cell phones but also other wireless devices that use the air media as the information transmission line.
Widya Cahyadi, Ardiansyah Ardiansyah
doaj   +1 more source

Metal boundary modelling for non-orthogonal FDTD [PDF]

open access: yes, 2007
This contribution looks into a technique to reduce numerical errors when employing non-orthogonal mesh in modelling curved structures.
Craddock, IJ   +2 more
core  

Large‐Area Metallic Nanohelices for Engineering Optical Chirality

open access: yesSmall, EarlyView.
By exploiting the nanoscale engineering of residual stresses in metallic thin films, this method enables scalable fabrication of submicrometer metallic helices with tunable geometry and material versatility. The resulting structures exhibit pronounced chiroptical responses across the mid‐ to near‐infrared range, offering a robust platform for chiral ...
Thu Hac Huong Le   +3 more
wiley   +1 more source

Effect Of Non-Uniformity Of The Multiconductor Line Constructional Parameters On The Frequency Characteristics Of The Meander Microstrip Delay Line

open access: yesMokslas: Lietuvos Ateitis, 2014
Inhomogeneities of the electromagnetic field are observed at the edges of the electrodynamic delay systems which are designed based on the concept of infinite periodic multiconductor line.
Audrius Krukonis, Šarūnas Mikučionis
doaj   +1 more source

Comparison of the Prevalence of Bovine Leukemia Virus (BLV) in Holstein and Angus Cattle Breeds From Shandong Province, China

open access: yesMicrobiology and Immunology, EarlyView.
ABSTRACT Bovine leukemia virus (BLV) is widespread globally and causes economic losses in the cattle industry. Shandong Province plays a significant role in China's livestock industry, with an increasing importance in food of Holstein and Angus cattle. However, BLV prevalence in Holstein and Angus breeds in Shandong Province remains unclear.
Jingyuan Wang   +13 more
wiley   +1 more source

Reconfigurable Metamirrors Based on Compliant Mechanisms

open access: yesAdvanced Functional Materials, Volume 36, Issue 10, 2 February 2026.
Providing the basis for numerous practical applications, the reconfigurability of metadevices is of great importance. Through the integration of controlled mechanical deformation with chiral meta‐atoms, a compliant mechanism based metamirror is demonstrated for active control over the polarization of electromagnetic waves.
Galestan Mackertich‐Sengerdy   +3 more
wiley   +1 more source

Advanced Ceramics in Aerospace and Defense: The Interrelationship between Traditional and Additive Manufacturing Approaches

open access: yesAdvanced Materials Technologies, Volume 11, Issue 3, 5 February 2026.
Additive manufacturing revolutionizes production by enabling on‐demand, customized, and sustainable manufacturing with streamlined supply chains. While metal and polymer AM are well‐established, advanced ceramic AM is rapidly emerging, overcoming traditional material challenges.
Kateryna Oleksandrivna Shvydyuk   +2 more
wiley   +1 more source

Transverse resonance technique for analysis of a symmetrical open stub in a microstrip transmission line

open access: yesFrontiers in Electronics
Open stubs in a strip (microstrip) transmission line are one of the most common elements of planar circuits used in numerous devices in the various types of wireless systems.
Yulia V. Rassokhina   +1 more
doaj   +1 more source

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