Results 11 to 20 of about 56,724 (293)

Radio-transparent dipole antenna based on a metasurface cloak

open access: yesNature Communications, 2022
The authors demonstrate broadband and efficient radio-transparent antennas based on cloaking technology. Their features are well suited for modern communication systems, as closely spaced antennas need to be integrated with minimal interference.
Jason Soric   +3 more
doaj   +1 more source

Antenna Arrays Focused on Broadband Signals

open access: yesJournal of Telecommunications and Information Technology, 2016
Broadband and ultra-wideband signals are increasingly used in modern radio systems. Traditional performance of evaluation antennas operating with narrowband signals are not always adequately reflect the characteristics of broadband antennas, at least in
Denis Andreevich Vedenkin   +2 more
doaj   +1 more source

THE STATE OF DIPOLE, DIELECTRIC AND PLASMA ANTENNAS DEVELOPMENT IN THE CONTEXT OF HISTORICAL EVOLUTION OF ANTENNA SYSTEMS [PDF]

open access: yesРадиофизика и электроника, 2016
The present paper analyses the period of birth and development of science and technology of dipole antennas with reactive and complex loads, microwave dielectric and plasma antennas, as well as dipole and helical electrically small antennas, multi ...
V. V. Ovsyanikov
doaj   +1 more source

Broadband circularly polarized antennas for UHF SATCOM [PDF]

open access: yes, 2011
Novel circularly polarized (CP) antenna configurations derived from Moxon type antenna (bent dipole element over a ground plane) for broadband VHF SATCOM applications.
Manzhura, Oksana   +3 more
core   +1 more source

Compact triple‐broadband implantable antenna for multi‐functions in telemedicine

open access: yesIET Microwaves, Antennas & Propagation, 2022
A compact implantable antenna is designed to operate in the Medical Implant Communication Services (MICS; 402–405 MHz) band, 915‐MHz Industrial, Scientific, and Medical (ISM; 902–928 MHz) band, and 2.4‐GHz ISM (2.4–2.48 GHz) band; via the triple bands ...
Yi Fan   +5 more
doaj   +1 more source

A generalized asymptotic extraction solution for antennas in multilayered spherical media [PDF]

open access: yes, 2010
An efficient model is developed to accelerate the convergence of the dyadic Green's function's (DGF) infinite summation when the source and observation points are placed in different layers of a dielectric sphere, thereby expediting computational ...
Khamas, S.K.
core   +1 more source

A novel broadband windmill‐shaped metasurface antenna with stable radiation patterns

open access: yesIET Microwaves, Antennas & Propagation, 2023
A novel windmill‐shaped metasurface (MTS) structure is firstly presented and applied to realise broadband antennas with stable radiation patterns. Different from conventional square MTS structure, the proposed windmill‐shaped MTS structure is formed by ...
Dongxu Chen   +5 more
doaj   +1 more source

Analysis and Design of Broadband Simultaneous Wireless Information and Power Transfer (SWIPT) System Considering Rectifier Effect

open access: yesEnergies, 2018
The deployment of internet of things (IOT) devices in several applications is limited by their need of having batteries as a power source. This has led many researchers to make efforts on simultaneous wireless information and power transfer (SWIPT ...
Mehdi Shirichian   +3 more
doaj   +1 more source

Wideband circularly polarised antenna with dual‐fed strategy simplification based on common mode and differential mode

open access: yesIET Microwaves, Antennas & Propagation, 2023
A novel circularly polarised (CP) antenna design, termed differential mode (DM) and common mode (CM) design, is presented with equal‐amplitude in‐phase feed (EAIPF) in this article.
Yang Luo   +3 more
doaj   +1 more source

MIMO precoding for filter bank modulation systems based on PSVD [PDF]

open access: yes, 2011
In this paper we consider the design of a linearly precoded MIMO transceiver based on filter bank (FB) modulation for transmission over broadband frequency selective fading channels.
Moret, Nicola   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy