Results 241 to 250 of about 185,245 (299)

Development of Wideband Circular Microstrip Patch Antenna for Use in Microwave Imaging for Brain Tumor Detection. [PDF]

Sensors (Basel)
Özmen H, Wu M, Dalarsson M.
europepmc   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

Advanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu, Xiangwei Guo, Sajid Husain, Maya Ramesh, Pushpendra Gupta, Darrell Schlom, Ramamoorthy Ramesh, Yu‐Tsun Shao   +7 more
wiley   +1 more source

Printable Liquid Metal-Textiles for Deformation-Insensitive and Electromagnetically Robust mmWave Devices. [PDF]

Adv Sci (Weinh)
Ju L, Yu B, Wang R, Chen H, Hou K, Zhang C, Geng M, Dai Y, Zhang Y, Guan YS, Yu C, Lu WB.   +11 more
europepmc   +1 more source

A low-profile compact dual-sense quad-port circularly polarized MIMO antenna for 5G mmWave networks. [PDF]

Sci Rep
Hayat B, Khan A, Ahmad S, Tian Y, Alabdulkreem E, Majeed A, Mostafa SM.   +6 more
europepmc   +1 more source

A Spaceborne Integrated S/Ka Dual-Band Dual-Reflector Antenna. [PDF]

Micromachines (Basel)
Yang Z, Han W, Tang L, Wang H, Wang Y, Jiao Y.   +5 more
europepmc   +1 more source

A compact dual-band antenna using a gap-coupled monopole branch for Wi-Fi 6/6E/7 applications. [PDF]

Sci Rep
Wi S, Lee H, Choi J, Kim J, Li R, Kim H.
europepmc   +1 more source

A Low-Sidelobe Fully Metallic Ridge Gap Waveguide Antenna Array for W-Band Applications. [PDF]

Sensors (Basel)
Jiang H, Sheng L, Nie P, Feng Y, Wen J, Ji J, Cao W.   +6 more
europepmc   +1 more source

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Diversity antennas efficiencies enhancement

2007 IEEE Antennas and Propagation Society International Symposium, 2007
In this paper, a new method for enhancing ultra miniature diversity antennas efficiencies is shown. Antenna diversity is evaluated in terms of envelope correlation coefficient and diversity gain. Diversity gain can be related to antenna efficiencies. The so obtained diversity gain is called "efficient diversity gain".
Tounou, Charles Adovi, Decroze, Cyril, Carsenat, David, Monédière, Thierry, Jecko, Bernard   +4 more
openaire   +2 more sources

Efficiency of Metasurface Antennas

IEEE Transactions on Antennas and Propagation, 2017
Different types of efficiencies are introduced for metasurface (MTS) antennas based on single point-source excitation: 1) the feed efficiency $\varepsilon _{\mathrm{ feed}} $ is the power delivered by the feed to surface wave (SW) over the input power; 2) the tapering efficiency $\varepsilon _{\mathrm{ tap}} $ quantifies the deviation with ...
Minatti, Gabriele, Martini, Enrica, Maci, Stefano   +2 more
openaire   +3 more sources