Results 71 to 80 of about 498,880 (195)
A phase‐change magneto‐optical metagrating combines GST switching with InAs guided‐mode resonances to achieve strong nonreciprocal absorption contrast near normal incidence. A static magnetic bias creates direction‐dependent resonant splitting, while GST crystallization quenches and latches the response.
Ye Ming Qing +5 more
wiley +1 more source
DESIGN AND CHARACTERIZATION OF E-SHAPE MICROSTRIP PATCH ANTENNA FOR WIRELESS COMMUNICATION [PDF]
The area of microstrip antennas has seen some inventive work in recent years and is one of the most dynamic fields of antenna theory. The ever increasing need for mobile communication and the emergence of newer technologies require an efficient design of
R. Divya, M. Priya
doaj
Third‐harmonic spectral monitoring with an existing bent‐crystal spectrometer provides single‐shot bandwidth diagnostics and real‐time machine tuning for tender X‐ray free‐electron laser operation, and can be made non‐invasive when combined with a suitable beam‐sampling grating.The tender X‐ray (2.0–4.0 keV) region provides access to the K‐edges of ...
Christopher Arrell +2 more
wiley +1 more source
Circularly polarized U-Slot antenna [PDF]
Circularly polarized single-layer U-slot microstrip patch antenna has been proposed. The suggested asymmetrical U-slot can generate the two orthogonal modes for circular polarization without chamfering any corner of the probe-fed square patch microstrip ...
Tong, KF, Wong, TP
core
A vacuum‐free, ambient‐spray Ni–Cu(–O)/Ag nanowire transparent‐heater platform is realized via conformal junction‐shell engineering and silica–hybrid overcoating, enabling robust high‐temperature heating together with GHz‐band far‐field EMI shielding and near‐field magnetic‐noise attenuation.
Ye Na Heo +4 more
wiley +1 more source
Metasurface‐Enabled Active‐Like Passive Radar
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li +7 more
wiley +1 more source
This paper presents the design of a microstrip patch antenna based on a Square Split Ring Resonator (SSRR). Wireless technology is switching from 4G to 5G due to the need to overcome limitations, such as low throughput, high latency and path loss.
S. Kumari +4 more
doaj +1 more source
This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley +1 more source
A 0.7 to 30 GHz Coplanar Vivaldi Antenna
ABSTRACT In the literature there are multiple Vivaldi antenna designs that have a wide impedance bandwidth; however, the usable bandwidth is often limited by pattern degradation at the higher frequencies of the band. This paper presents the design and implementation of a coplanar Vivaldi antenna with a 42.9:1 usable bandwidth ratio (0.7–30 GHz).
Jessica Mundell +3 more
wiley +1 more source
Feasibility Investigation of SIW Cavity-Backed Patch Antenna Array for Ku Band Applications
A cavity-backed microstrip patch antenna array was optimized in the Ku band. The backing cavity was designed under each patch antenna of the array in order to increase the bandwidth and minimize the intercoupling among the radiating elements.
Onofrio Losito +8 more
doaj +1 more source

