Results 71 to 80 of about 3,855 (302)

Evaluation and compensation of mutual coupling and other non-idealities in small antenna arrays [PDF]

, 2006
Smart antenna technology is a challenging area in the development of wireless communications. Using smart antennas the quality of a radio link can be improved by many ways. Smart antennas are active antenna arrays or groups with changeable complex-valued
Salonen, Ilkka
core  

Advancing Lithium–Oxygen Batteries: Pioneering Cathode Catalyst Innovation and Artificial Intelligence‐Driven Design Paradigms

Advanced Materials, EarlyView.
This review summarizes the principles and challenges of nonaqueous lithium‐oxygen batteries and recent advances in cathode catalysts, including carbon‐based materials, metals, oxides, sulfides, nitrides, carbides, and redox mediators. It highlights emerging design strategies and artificial intelligence‐driven approaches, emphasizing data‐assisted ...
Yuqing Yao, Chongyang Hao, Karol Viviana Mejia‐Centeno, Malik Dilshad Khan, Shang Wang, Longqiu Li, Yanhong Tian, Andreu Cabot, Qing Sun   +8 more
wiley   +1 more source

Mitigation of mutual coupling in microstrip antenna arrays

Технология и конструирование в электронной аппаратуре, 2019
This article demonstrates the alleviation of mutual coupling of a simple and low-cost four-element microstrip array antenna by loading I-shaped slot-type electromagnetic band gap structure in the ground plane. FR-4 glass epoxy is used as dielectric substrate.
K. Prahlada Rao, Van, R.M., Hunagund, P.V.   +2 more
openaire   +3 more sources

Null positioning of dipole antenna array considering coupling effect [PDF]

, 2017
Antenna array is a set of antennas that are arranged together with different excitations (amplitude and phase) and used in beamforming techniques. The difference in phases are combined together to make the array acting like a single antenna with better ...
Mat Ramli, Nurwahida, Khaizuran Abdullah, Nurwahida Mat Ramli, Abdullah, Khaizuran, Norun Abdul Malek, Abdul Malek, Norun   +5 more
core   +1 more source

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

Advanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño, Luis A. Pérez, Carlota Ruiz De Galarreta, Théo Rouanet, M. Isabel Alonso, Agustín Mihi   +5 more
wiley   +1 more source

Mutual Coupling Reduction Techniques in Electronic Steering Antennas in X Band

, 2011
This work provides the development of an antenna for satellite communications onboard systems based on the recommendations ITU-R S.580-6 [1] and ITU-R S.465-5 [2].
Fernández González, José Manuel, Sierra Castañer, Manuel, Padilla de La Torre, Pablo, Exposito Dominguez, Gonzalo   +3 more
core  

Mutual Coupling Effect on Ultrawideband Linear Antenna Array Performance

, 2011
This paper studies the mutual coupling effect between array elements of two- and four-element ultrawideband (UWB) linear arrays on their performances. For simplicity, it is assumed that both antenna arrays are fed by independent microstrip lines with the
Abdel-Razik Sebak, Osama Ahmed
core   +1 more source

A Method of Reducing Mutual Coupling for a Finite Array

, 2020
A method of reducing mutual coupling for a finite array with the characteristics of wideband and beam steering is presented in this paper. By adding an extra decoupling network, the mutual coupling can be efficiently suppressed for the antenna array.
Lei Chen, Uz Zaman, Ashraf, Yang, Jian,, Jian Yang, Yang, Jian, Uz Zaman, Ashraf,, Chen, Lei, Zhang, Tianling, Ashraf Uz Zaman, Chen, Lei,, Zhang, Tianling,, Tianling Zhang   +11 more
core   +1 more source

A Dual‐Bioresponsive and Programmable Microneedle Matrix as a Bioinspired Coupler for Orchestrating Diabetic Bone Regeneration

Advanced Materials, EarlyView.
This project developed a smart bandage‐like patch (a microneedle array) for repairing diabetic bone damage. It intelligently senses signals from infection and inflammation, then releases its medicines in a specific, timed sequence: first an antibacterial agent, then an anti‐inflammatory agent, and finally growth factors.
Yu Wang, Rui Chen, Yu Chen, Haowen Lu, Yuchen Qian, Zhiheng Gao, Zheming Shen, Xiaofei Zheng, Huilin Yang, Jun Zou, Yusen Qiao   +10 more
wiley   +1 more source

Calculation of optimal values of weight coefficients for compensation of the mutual coupling of antenna array elements

Физика волновых процессов и радиотехнические системы
Background. Antenna arrays are widely used in a variety of modern radio engineering systems for wireless communication and radar. The phenomenon of mutual coupling of antenna elements, which is manifested in practical implementation, may cause noticeable
Anatoly M. Bobreshov, Alexander A. Kononov, Olga V. Neskorodova, Ksenia V. Smuseva, Grigory K. Uskov   +4 more
doaj   +1 more source