Results 11 to 20 of about 8,631 (218)

Steer by Image Technology for Intelligent Reflecting Surface Based on Reconfigurable Metasurface with Photodiodes as Tunable Elements

Crystals, 2022
Lately, metasurface has become an essential and promising component in implementing Intelligent Reflecting Surface (IRS) for 5G and 6G. A novel method that simplifies the ability to reconfigure the metasurface is presented in this paper.
David Rotshild, Daniel Rozban, Efi Rahamim, Asaf Barom, Rotem Yosef, Liel Bhanam, Amir Abramovich   +6 more
doaj   +1 more source

On-Chip Optical Beam Manipulation with an Electrically Tunable Lithium-Niobate-on-Insulator Metasurface

Micromachines, 2022
Photonic integrated circuits (PICs) have garnered increasing attention because of their high efficiency in information processing. Recently, lithium niobate on insulator (LNOI) has become a new platform for PICs with excellent properties. Several tunable
Linyuan Dou, Lingyun Xie, Zeyong Wei, Zhanshan Wang, Xinbin Cheng   +4 more
doaj   +1 more source

Novel Hybrid Electric/Magnetic Bias Concept for Tunable Liquid Crystal Based Filter

IEEE Journal of Microwaves, 2022
This paper presents a novel hybrid bias concept for liquid crystal (LC) filter by using simultaneously electric and magnetic bias fields. It enables continuous tuning with a simplified electrode design, decreased number of electrodes and reduced bias ...
Ersin Polat, Fynn Kamrath, Stipo Matic, Henning Tesmer, Alejandro Jimenez-Saez, Dongwei Wang, Holger Maune, Michael Hoft, Rolf Jakoby   +8 more
doaj   +1 more source

Bandwidth and Center Frequency Reconfigurable Waveguide Filter Based on Liquid Crystal Technology

IEEE Journal of Microwaves, 2022
This paper presents for the first time a fully electronically reconfigurable waveguide filter tunable in bandwidth and center frequency based on liquid crystal (LC) technology.
Fynn Kamrath, Ersin Polat, Stipo Matic, Christian Schuster, Daniel Miek, Henning Tesmer, Patrick Boe, Dongwei Wang, Rolf Jakoby, Holger Maune, Michael Hoft   +10 more
doaj   +1 more source

Design and Sensitivity Analysis of Dynamic Wireless Chargers for Efficient Energy Transfer

IEEE Access, 2021
Tunable Self-Oscillating Switching (TSOS) methods are a robust solution for tuning of Inductive Power Transfer (IPT) systems. However, they require deep analysis to be an appropriate choice for Dynamic Wireless Charging (DWC) systems.
S. Abbas Moosavi, S. Saeidallah Mortazavi, Alireza Namadmalan, Atif Iqbal, Mohammed Al-Hitmi   +4 more
doaj   +1 more source

Concept for Continuously Tunable Output Filters for Digital Transmitter Architectures

IEEE Access, 2019
This paper presents a novel output filter approach for continuously frequency-tunable digital power amplifiers, suitable for future seamless and band-less applications in 5G, e.g. for cognitive radios (CR). The presented tunable output filter is based on
Christian Schuster, Lukas Schynol, Andreas Wentzel, Florian Huhn, Ersin Polat, Sonke Schmidt, Rolf Jakoby, Wolfgang Heinrich, Holger Maune   +8 more
doaj   +1 more source

Photoinduced Tunable and Reconfigurable Electronic and Photonic Devices Using a Silk‐Based Diffractive Optics Platform

Advanced Science, 2020
A remarkable feature of modern electronic and photonic devices is the ability to maintain their geometric and physical properties in various circumstances for practical applications.
Xiaoqing Cai, Zhitao Zhou, Tiger H. Tao
doaj   +1 more source

Low-Voltage Permittivity Control of Coplanar Lines Based on Hafnium Oxide Ferroelectrics Grown on Silicon

IEEE Access, 2019
This paper is dedicated to the study of the tunable electromagnetic properties of HfO2 doped with Zr (further referred to as HfZrO) grown on high-resistivity silicon using atomic layer deposition (ALD) techniques. Two metallic coplanar lines patterned on
M. Aldrigo, M. Dragoman, S. Iordanescu, F. Nastase, S. Vulpe, A. Dinescu, D. Vasilache   +6 more
doaj   +1 more source

Ultra-broad bandgap metal-insulator-metal waveguide filter with symmetrical stubs and defects

Results in Physics, 2020
An ultra-broad bandgap plasmonic based filter that consists of a metal-insulator-metal waveguide with symmetrical stubs and defects is designed and investigated for the first time.
Yuan-Fong Chou Chau, Chung-Ting Chou Chao, Hai-Pang Chiang   +2 more
doaj   +1 more source

A Current Mode Design of Fractional Order Universal Filter

Advances in Electrical and Computer Engineering, 2019
In this paper, low-voltage active elements based a general filter topology, which provides fractional order low-pass, high-pass, band-pass and band-reject filter responses at the same circuit, is introduced.
SACU, I. E., ALCI, M.
doaj   +1 more source