Results 61 to 70 of about 46,578 (227)

Design of a dual linear polarization antenna using split ring resonators at X-band [PDF]

Advances in Radio Science, 2017
Dual linear polarization microstrip antenna configurations are very suitable for high-performance satellites, wireless communication and radar applications. This paper presents a new method to improve the co-cross polarization discrimination (XPD) for
S. Ahmed, S. Ahmed, M. Chandra
doaj   +1 more source

Small Microstrip Patch Antennas

Electronics Letters, 1995
As stated in Chapter 1, one of the many advantages of microstrip patch technology over its competitors is its low profile and hence small volume. Another key advantage of this printed antenna is the relative ease in which it can be connected to the feed network, as was highlighted in Chapter 2.
openaire   +1 more source

Electromagnetic analysis and performance comparison of fully 3D-printed antennas [PDF]

, 2019
In this work, the possibility of directly prototyping antennas by exploiting additive manufacturing 3D-printing technology is investigated. In particular, the availability of printable filaments with interesting conductive properties allows for printing ...
Casula, A., Catarinucci, L., Chietera, F., Colella, R., Gatto, G., Michel, A., Montisci, G., Nepa, P., Rogier, Hendrik   +8 more
core   +1 more source

Enhancing Plateau Capacity of Binder‐Free and Self‐Supported Napkin‐Based Hard Carbon Anodes for Sodium‐Ion Batteries Via a Pre‐Oxidation Modulation Strategy

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Precise regulation of preoxidation time and carbonization temperature in biomass napkin‐derived hard carbon generates abundant closed pores and ultramicropores, significantly enhancing the capacity in the low‐potential plateau region (the high plateau capacity of 266 mAh g−1) and thereby achieving highly reversible sodium‐ion storage (395 mAh g−1 at 30 
Haoran Wang, Xinwei Li, Changsheng Ding, Haitao Feng, Yanfeng Gao   +4 more
wiley   +1 more source

Miniaturized low-profile filtering omnidirectional antenna design

Dianzi Jishu Yingyong
A miniaturized omnidirectional microstrip filter antenna is designed. The antenna is composed of a bandpass filter and a microstrip antenna, which share a ground plane to reduce the size and are connected by gap coupling. The bandpass filter is etched at
Wang Lili, Xu Yani, Gao Zhiyong, Zhang Heng   +3 more
doaj   +1 more source

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

ENERGY &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, Jinzhi Lyu, Yongxiang Li, Yubing Wang, Xiangming Cui, Jianan Wang, Banglong Wan, Wei Yan   +7 more
wiley   +1 more source

PROTOTYPE ANTENA OMNIDIRECTIONAL MIKROSTRIP PATCH ARRAY SEBAGAI PENGUAT TRANSMITTER RADAR PESAWAT TERBANG PADA FREKUENSI 1030MHZ

Rotor: Jurnal Ilmiah Teknik Mesin, 2016
Radar SSR (Secondary Surveillance Radar) is an equipment to detect and determine the position and target data around him actively, where the plane took active if it receives the RF signal emitted secondary radar.
Arif Fahmi, Dodi Setiabudi
doaj  

PERANCANGAN DAN ANALISA ANTENA MIKROSTRIP DENGAN FREKUENSI 850 MHz UNTUK APLIKASI PRAKTIKUM ANTENA [PDF]

, 2011
Problems antenna of conductor materials is rather complicated construction and size are usually quite large, so for purposes such as a cellular system is considered less efficient.
Christiyono, Yuli, Nugraha, Adhe Setya, Sukiswo, Sukiswo   +2 more
core  

Recent advances in multifunctional soft robots: A materials–structures–systems co‐design perspective for synergistic integration

FlexMat, EarlyView.
Abstract Soft robots, engineered from highly compliant materials, offer superior adaptability and safety in unstructured environments compared to their rigid counterparts. Recent advancements, fueled by bio‐inspiration and material programmability, have led to the rapid co‐evolution of their core modules: actuation, sensing, protection, energy, and ...
Qiulei Liu, Zicao Peng, Chong Sun, Haitao Yang   +3 more
wiley   +1 more source

Neutron reflectometry instrumentation at the ISIS source: current state

Journal of Applied Crystallography, EarlyView.
This article presents the current capabilities of the four time‐of‐flight neutron reflectometers at the ISIS Neutron and Muon Source, highlighting recent advances in instrumentation, automation and data analysis that enable high‐precision studies of interfacial structures across diverse scientific fields.Neutron reflectometry (NR) at the ISIS Neutron ...
Mario Campana, Andrew Caruana, Luke Clifton, Stephen Hall, Arwel Hughes, Christy Kinane, Maximilian Skoda, Oleksandr Tomchuk, John Webster   +8 more
wiley   +1 more source