Results 31 to 40 of about 7,852 (255)

A Frequency and Polarization Reconfigurable Dual-Patch Microstrip A Frequency and Polarization Reconfigurable Dual-Patch Microstrip

Applied Computational Electromagnetics Society, 2021
This paper proposes a reconfigurable microstrip patch antenna design for wireless ISM band applications. The antenna simultaneously uses PIN Diodes to switch between linear and circular polarization at 2.45 GHz and uses Varactor Diode to continuously tune the operating frequency from 1.73 GHz to 2.45 GHz.
Cong Bui, Thanh Dang, Minh Doan, Truong Nguyen   +3 more
openaire   +1 more source

Design of a frequency reconfigurable, terahertz antenna for photomixers

2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016
We present the fabrication-ready design of a frequency reconfigurable terahertz antenna for photomixers using Nano-Electro-Mechanical Systems (NEMS) switches. The proposed antenna is a dipole antenna, where the physical length of the antenna is changed using NEMS switches, which enables high radiation resistance at two different frequencies, namely 320
Demir, Kazim, Bilgin, Habib, Sahin, Asaf B., Unlu, Mehmet   +3 more
openaire   +3 more sources

Frequency Reconfigurable Low-Profile UWB Magneto-Electric Dipole in VHF Band

IEEE Access, 2021
Reducing the size of directive and wideband antennas operating in the Very High-Frequency band is a major challenge for small satellite integration. At 100 MHz, the wavelength is 3 m, and the size reduction will make the integration easier and reduces ...
Abdul-Sattar Kaddour, Serge Bories, Anthony Bellion, Christophe Delaveaud   +3 more
doaj   +1 more source

Microwave Wireless Power Transfer System Based on a Frequency Reconfigurable Microstrip Patch Antenna Array

Energies, 2021
The microwave wireless power transfer (MWPT) technology has found a variety of applications in consumer electronics, medical implants and sensor networks. Here, instead of a magnetic resonant coupling wireless power transfer (MRCWPT) system, a novel MWPT
Haiyue Wang, Lianwen Deng, Heng Luo, Junsa Du, Daohan Zhou, Shengxiang Huang   +5 more
doaj   +1 more source

Single- and Multi-Stopband Reconfigurable FSS [PDF]

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
In this work, a reconfigurable frequency-selective surface (FSS) with a very simple biasing network that offers singleor multi-band response is presented. The proposed structure is formed by the V-shaped elements on a single-sided dielectric substrate. A
Thayuan Rolim de Sousa, Deisy Formiga Mamedes, Juliete da Silva Souza, Valdemir Praxedes da Silva Neto   +3 more
doaj   +1 more source

A Compact Flexible Frequency Reconfigurable Antenna for Heterogeneous Applications

IEEE Access, 2020
This paper presents a compact frequency reconfigurable antenna for flexible devices and conformal surfaces. The antenna consists of a simple easy to fabricate structure consisting of a stub loaded circular radiator, designed on commercially available ...
Niamat Hussain, Wahaj Abbas Awan, Syeda Iffat Naqvi, Adnan Ghaffar, Abir Zaidi, Syed Aftab Naqvi, Adnan Iftikhar, Xue Jun Li   +7 more
doaj   +1 more source

"Reconfigurable Plasma Frequency Selective Surface "

Proceedings of the 2025 International Symposium on Electromagnetic Theory - URSI EMTS 2025
This paper presents single- and double-layer reconfigurable frequency selective surfaces (FSS) for high-power microwave (HPM) shielding, utilizing plasma as an active element. Unlike conventional FSS, plasma-based design enables tunable filtering by adjusting plasma density or shape, reducing the need for extensive structural modifications.
Varikuntla, Krushna Kanth; id_orcid 0000-0002-5749-9530, Abbasi, Muhammad Ali Babar; id_orcid 0000-0002-1283-4614, Yurduseven, Okan; id_orcid 0000-0002-0242-3029   +2 more
openaire   +2 more sources

Additively-Manufactured, Magnetically Controlled, Frequency and Polarization Reconfigurable Phased Array Antenna

IEEE Open Journal of Antennas and Propagation
An additively manufactured phased array antenna is presented in this work that provides simultaneous reconfiguration in frequency, polarization, and beam direction solely in response to magnetic tuning of the underlying ferrite substrate.
Ulan Myrzakhan, Farhan A. Ghaffar, Mohammad Vaseem, Atif Shamim   +3 more
doaj   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

Advanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

Frequency reconfigurable multi-mode microstrip quasi-Yagi antenna

Zhongguo Jianchuan Yanjiu, 2022
ObjectivesWith increasing congestion and interference facing shipborne wireless communication equipment, it is urgent for antennae functions to be reconstructed. This study proposes a microstrip Quasi-Yagi antenna with a continuously reconfigurable cross-
Kaicheng HUANG, Li'an BIAN, Yu LIU, Yaokun WANG, Yingjie HONG   +4 more
doaj   +1 more source