Results 81 to 90 of about 9,979 (227)

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, Volume 36, Issue 12, 9 February 2026.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

A Fully Parameterized Fem Model for Electromagnetic Optimization of an RF Mems Wafer Level Package [PDF]

, 2007
In this work, we present a fully parameterized capped transmission line model for electromagnetic optimization of a wafer level package (WLP) for RF MEMS applications using the Ansoft HFSS-TM electromagnetic simulator.
Bartek, M., Gaddi, R., Gnudi, A., Iannacci, J., Tian, J.   +4 more
core   +2 more sources

Reconfigurable Metamirrors Based on Compliant Mechanisms

Advanced Functional Materials, Volume 36, Issue 10, 2 February 2026.
Providing the basis for numerous practical applications, the reconfigurability of metadevices is of great importance. Through the integration of controlled mechanical deformation with chiral meta‐atoms, a compliant mechanism based metamirror is demonstrated for active control over the polarization of electromagnetic waves.
Galestan Mackertich‐Sengerdy, Lei Kang, Sawyer D. Campbell, Douglas H. Werner   +3 more
wiley   +1 more source

A reconfigurable H-shape antenna for wireless applications [PDF]

, 2010
The official published version of this article can be obtained from the link below - Copyright @ EuCAP2010This paper presents a novel H-Shaped reconfigurable microstrip patch antenna fed by a Grounded Coplanar Waveguide (GCPW) for wireless applications.
AbuTarboush, HF, Al-Raweshidy, H, Budimir, D, Nasr, KM, Nilavalan, R   +4 more
core   +1 more source

Large-signal varactor measurements

Electronics Letters, 1970
A simple method of measuring the large-signal parameters of a varactor diode for parametric-amplifier and harmonic-generator applications is described. These large-signal parameters and the conventional small-signal parameters are used to calculate the performance of the diodes in an X-band parametric amplifier.
C.S. Aitchison, R. Davies
openaire   +1 more source

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

Advanced Materials Technologies, Volume 11, Issue 4, 19 February 2026.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim, Donggeun An, Hyunjae Shin, Youngno Youn, Wonbin Hong   +4 more
wiley   +1 more source

Comparison of Antennas Electrical Tuning Methods for Mobile Applications

Известия высших учебных заведений России: Радиоэлектроника, 2017
The various methods of antenna electrical tuning for mobile handsets working in several LTE frequency bands are described. The PIFA-type antenna containing high and low frequency branches is proposed.
A. D. Grigoriev, B. Djalilov
doaj  

Spatial Multiplexing of QPSK Signals with a Single Radio: Antenna Design and Over-the-Air Experiments

, 2016
The paper describes the implementation and performance analysis of the first fully-operational beam-space MIMO antenna for the spatial multiplexing of two QPSK streams.
Austin, Andrew C. M., Burg, Andreas, Mosig, Juan R., Perruisseau-Carrier, Julien, Yousefbeiki, Mohsen   +4 more
core   +1 more source

Offset-calibration with Time-Domain Comparators Using Inversion-mode Varactors [PDF]

, 2019
This paper presents a differential time-domain comparator formed by two voltage controlled delay lines, one per input terminal, and a binary phase detector for comparison solving.
Delgado Restituto, Manuel, Fiorelli, Rafaella, Rodríguez Vázquez, Ángel Benito   +2 more
core   +1 more source

Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic‐Accessible Metasurface

Advanced Science, Volume 13, Issue 10, 18 February 2026.
A fluidic access metasurface enables dynamic, broadband electromagnetic illusions. By physically reconstructing conductive patterns with liquid metal, the metasurface achieves real‐time, pixel‐level control over phase dispersion. This allows for the programmable generation of arbitrary strong scattering point arrays, effectively deceiving high ...
Shipeng Liu, Jiahao Zhang, Jiale Wang, Zeyao Chen, Zhaotong Yu, Jinhong Luo, Jiabao Luo, Rujia Cao, Shuxi Gong, Qingxin Guo, Ping Li, Rujiang Li, Ke Chen, Yongtao Jia, Ying Liu   +14 more
wiley   +1 more source