Results 151 to 160 of about 1,902,856 (342)

MODELING OF THE RADIO DIRECTION FINDING PROCESS BY DIGITAL ANTENNA ARRAYS TAKING INTO ACCOUNT THE EFFECT OF MUTUAL COUPLING OF ANTENNA ELEMENTS

Надежность и качество сложных систем
Background. The effect of mutual coupling of antenna elements can have a significant impact on the characteristics of complex, sensitive systems. This effect changes the shape of the directional patterns of antenna elements, changes their active ...
I.V. Peshkov, V.A. Zhigulin, N.A. Fortunova   +2 more
doaj   +1 more source

Characteristics of the Radiating Element of a Planar Vivaldi Antenna Array with Improved Bandwidth

Известия высших учебных заведений России: Радиоэлектроника
Introduction. The conventional approach to extending the operating frequency band of Vivaldi antenna arrays consists in increasing the radiating element length. However, this inevitably leads to an increase in the mass of the entire array, and, therefore,
I. V. Bobkov, Yu. V. Yukhanov
doaj   +1 more source

Multi-feed, loop-dipole combined dielectric resonator antenna arrays for human brain MRI at 7 T. [PDF]

MAGMA, 2023
Wenz D, Dardano T.
europepmc   +1 more source

The design and fabrication of microstrip omnidirectional array antennas for aerospace applications [PDF]

A microstrip antenna design concept was developed that will provide quasi-omnidirectional radiation pattern characteristics about cylindrical and conical aerospace structures. L-band and S-band antenna arrays were designed, fabricated, and, in some cases,
Appleton, M. W., Campbell, T. G., Lusby, T. K.   +2 more
core   +1 more source

Zwitterionic Self‐Assembled Monolayer for Simultaneous Noise Suppression and Hole Extraction in High‐Performance Near‐Infrared Organic Photodetectors

Advanced Functional Materials, EarlyView.
This study presents a new hole transporting material (HTM) mechanism for self‐assembled monolayers in near‐infrared organic photodetectors. The formation of zwitterions induces a strong electric field that significantly increases the work function of HTM‐coated indium tin oxide substrates. The devices exhibit low dark current and noise, along with high
Jiyoung Shin, Gyeong Min Lee, Juyeon Shin, Jaewoong Kim, Tae Hyuk Kim, Do Yeon Kim, Myeong In Kim, Kyeounghak Kim, Jae Won Shim, In Hwan Jung   +9 more
wiley   +1 more source

Novel Design Techniques for the Fermat Spiral in Antenna Arrays, for Maximum SLL Reduction. [PDF]

Micromachines (Basel), 2022
Encino K, Panduro MA, Reyna A, Covarrubias DH.   +3 more
europepmc   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

A New Scheme of Applying CORPS and Crossovers to Reduce the Number of Phase Shifters in Antenna Arrays. [PDF]

Sensors (Basel), 2022
Calvillo G, Panduro MA, Sanchez B, Reyna A.   +3 more
europepmc   +1 more source

Atomic‐Scale Light Coupling Control in Ultrathin Photonic Membranes

Advanced Functional Materials, EarlyView.
Ultrathin photonic nanomembranes provide atomic‐scale control over the coupling between incident light and high‐Q photonic modes, enabling angstrom‐level resonance tuning and strong field confinement. When integrated with TMD monolayers, they further yield enhanced light–matter interactions, offering a versatile platform for advancing quantum photonics,
Chih‐Zong Deng, Chun‐Hao Chiang, Sunhao Shi, Jui‐Han Fu, Yen‐Ju Wu, Kuniaki Konishi, Vincent Tung, Chun‐Wei Chen, Ya‐Lun Ho   +8 more
wiley   +1 more source

Experimental demonstration of peripherally-excited antenna arrays. [PDF]

Nat Commun, 2021
Dorrah AH, Eleftheriades GV.
europepmc   +1 more source