Results 51 to 60 of about 2,469,239 (346)

Flexible and Transparent Circularly Polarized Patch Antenna for Reliable Unobtrusive Wearable Wireless Communications

open access: yesSensors, 2022
This paper presents a circularly polarized flexible and transparent circular patch antenna suitable for body-worn wireless-communications. Circular polarization is highly beneficial in wearable wireless communications, where antennas, as a key component ...
Abu Sadat Md. Sayem   +6 more
doaj   +1 more source

Flexible Precoding for Multi-User Movable Antenna Communications [PDF]

open access: yesIEEE Wireless Communications Letters
This letter rethinks traditional precoding in multi-user wireless communications with movable antennas (MAs). Utilizing MAs for optimal antenna positioning, we introduce a sparse optimization (SO)-based approach focusing on regularized zero-forcing (RZF).
Songjie Yang   +4 more
semanticscholar   +1 more source

Flexible three‐dimensional printed antenna substrates

open access: yesThe Journal of Engineering, 2015
Flexible heterogeneous substrates have been constructed, using three‐dimensional printing in a single process, by introducing air‐filled slots. These substrates have been used to substantially reduce the substrate losses for a flexible microstrip patch antenna causing an increase in its radiation efficiency.
Syed Sheheryar Bukhari   +3 more
openaire   +2 more sources

Antenna performances based on distinctive thickness-dependent of flexible substrates: A comprehensive review

open access: yesAin Shams Engineering Journal
A flexible antenna has many benefits, including a simple structure, simple resonator control, steady performance, and improved efficiency when bent. A flexible antenna offers an additional advantage via structure integration, leading to a reduction in ...
Mohamad Faiz Mohamed Omar   +5 more
doaj   +1 more source

Multilayer Strip Dipole Antenna Using Stacking Technique and Its Application for Curved Surface

open access: yesInternational Journal of Antennas and Propagation, 2013
This paper presents the design of multilayer strip dipole antenna by stacking a flexible copper-clad laminate utilized for curved surface on the cylindrical objects.
Charinsak Saetiaw, Chanchai Thongsopa
doaj   +1 more source

Analysis and Experimental Study on Dynamic Behavior of Stepper-Actuated Dual-Axis Data Transmission Antenna

open access: yesInternational Journal of Aerospace Engineering, 2021
The satellite-borne data transmission antenna is the main disturbing source of low-frequency microvibration of spacecraft, which immensely affects the image quality of remote sensing satellite.
Zhaomingyue Zheng   +4 more
doaj   +1 more source

Synchronous wearable wireless body sensor network composed of autonomous textile nodes [PDF]

open access: yes, 2014
A novel, fully-autonomous, wearable, wireless sensor network is presented, where each flexible textile node performs cooperative synchronous acquisition and distributed event detection.
Knockaert, Jos   +4 more
core   +3 more sources

Multi Direction-of-Arrival Tracking Using Rigid and Flexible Antenna Arrays

open access: yesIEEE Transactions on Wireless Communications, 2021
This paper is concerned with the problem of simultaneously tracking the direction-of-arrival (DOA) of far-field multiple moving sources/users in wireless communications using the vector-signal received by an antenna array of $N$ elements.
Zhuqing Tang, A. Manikas
semanticscholar   +1 more source

FLEXIBLE AND CONFORMAL PRINTED MONOPOLES ANTENNAS

open access: yesProgress In Electromagnetics Research Letters, 2017
This paper presents the development and design of flexible and conformal printed monopoles antennas. The main objective is to control the level of radiation in broadside antenna from zero to a maximum by changing the curvature of printed board. Two printed antennas types are considered: thin wire and disk monopole.
Hachi, Asmae   +2 more
openaire   +3 more sources

Compact Sub-6 GHz Four-Element Flexible Antenna for 5G Applications

open access: yesElectronics
This paper proposes the design of a compact sub-6 GHz four-port flexible antenna for utilization in 5G applications. A two-arm monopole with a coplanar waveguide feed line printed on a flexible substrate was proposed to shape the single-element antenna ...
M. Abdelghany   +3 more
semanticscholar   +1 more source

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