Results 31 to 40 of about 77,439 (303)

Performance Evaluation of Integrated Antennas on Photovoltaic Solar Cells [PDF]

open access: yesEngineering and Technology Journal, 2023
The performance of antennas is critical to ensuring reliable wireless communication and robust data transmission. Unfortunately, antennas’ performance gets degraded when loaded with lossy materials.
Ahmed Al-Alawi   +3 more
doaj   +1 more source

Polygon Shaped 3G Mobile Band Antennas for High Tech Military Uniforms

open access: yesAdvanced Electromagnetics, 2016
Smart Textiles integrated with communicating components have been used in military for many applications. Wearable antenna can be attached or embedded into smart textiles which could be used for communication between combat soldiers in the battlefield ...
M. Krishnan, G. Kannan
doaj   +1 more source

Overview of 5G terminal antenna structure design

open access: yesDianzi Jishu Yingyong, 2021
This article mainly introduces the current status of 5G antennas, and shows several mainstream smart terminal antenna design methods in the past decade. Based on MIMO antenna, frequency resettable antenna and slot antenna, their working modes, principles
Zhao Zhangyuan, Zhu Canyan
doaj   +1 more source

Biodegradable dual semicircular patch antenna tile for smart floors [PDF]

open access: yes, 2019
A dual semicircular microstrip patch antenna implemented on a biodegradable substrate is presented for operation in the [863-873] MHz and [2.4-2.5] GHz frequency bands.
Agneessens, Sam   +6 more
core   +1 more source

A Novel Directional Antenna for Next-Generation Fare Payment System

open access: yesIEEE Access, 2023
The fare payment system for public transportation has developed from coins, paper tickets, magnetic strips, and pre-paid cards to new technologies such as Radio-Frequency Identification (RFID) and Near Field Communication (NFC). Most fare payment systems
Dong-Jin Lee, Tae-Ki An, In-June Hwang
doaj   +1 more source

Smart Antenna Systems

open access: yesInternational Journal for Research in Applied Science and Engineering Technology, 2022
Abstract: Smart antennas have received increasing interest for improving the performance of wireless radio systems. These systems of antennas include a large number of techniques that attempt to enhance the received signal, suppress all interfering signals, and increase capacity, in general. The main purpose of this article is to provide an overview of
openaire   +1 more source

Modeling of wide-band MIMO radio channels based on NLoS indoor measurements [PDF]

open access: yes, 2004
Link to published version (if available)
Björn Ottersten   +6 more
core   +3 more sources

Wearable, small, and robust: the circular quarter-mode textile antenna [PDF]

open access: yes, 2015
A miniaturized wearable antenna, entirely implemented in textile materials, is proposed that relies on a quarter-mode substrate integrated waveguide topology.
Agneessens, Sam   +3 more
core   +1 more source

Design of Adaptive Planar Microstrip Patch Array Operating at 28 GHz for 5G Smart Mobile System

open access: yesKurdistan Journal of Applied Research, 2019
Smart antenna system has been studied extensively for the fifth generation of wireless communication systems, because it has made a system better performance of higher capacity and coverage as well as of power-saving.
Zhwan Mohammed Rashid   +1 more
doaj   +1 more source

A Review of Achieving Frequency Reconfiguration for Antennas in Wireless Communications

open access: yesTạp chí Khoa học và Công nghệ, 2023
Reconfigurable antennas are a type of smart antenna that is able to change whose properties, including resonant frequency, polarization, radiation pattern, and a combination of these properties.
Hoang Thi Phuong Thao
doaj   +1 more source

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