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communication - iate.europa.eu
Dans un autre aspect, une fréquence à laquelle une antenne accordée est syntonisée est décalée pour vérifier si l'antenne est toujours accordée.

In a further aspect, a frequency to which a tuned antenna is tuned is shifted to verify whether the antenna is still in tune.

électronique et électrotechnique - wipo.int
Bandwidth enhancement of antenna arrays utilizing mutual coupling between antenna elements... First, an approximate expression is derived for matched voltage standing wave ratio (VSWR) bandwidth of a tuned antenna, which reveals that the bandwidth is inversely proportional to the magnitude |Γ0'(ω0)| of the frequency derivative of the reflection coefficient....
général - core.ac.uk - PDF: doaj.org
Lower bounds on quality factor for antennas containing bianisotropic material... However, in this paper we show that a quality factor (Q) that appears to be generally applicable to a single resonance or antiresonance of a tuned antenna containing lossy or lossless dispersive bianisotropic material has a spherical lower bound that cannot be less than the least Chu lower bound, which occurs for antennas...
Frequency tuned planar inverted f antenna with l shaped slit design for wide frequency range.yesA frequency tuned antenna has been designed to meet the coverage requirements of the DCS, PCS, UMTS and WLAN bands....
 PDF: core.ac.uk
Impedance, bandwidth, and q of antennas'The primary purpose of this paper is twofold first, to derive an approximate expression for the bandwidth of a tuned antenna in terms of its input impedance that holds at every frequency, that is, throughout the entire antiresonant as well as resonant frequency ranges of the antenna; and...
Impedance, bandwidth, and q of antennasAbstract—To address the need for fundamental universally valid definitions of exact bandwidth and quality factor ( ) of tuned antennas, as well as the need for efficient accurate approximate formulas for computing this bandwidth and, exact and approximate expressions are found for the bandwidth...
antenne accordée
électronique et électrotechnique - iate.europa.eu
Slot aerials and their relation to complementary wire aerials (babinet's principle)*A hull-wave slot in a metal sheet may be used as a resonant aerial in a manner similar to a half-wave dipole....
général - core.ac.uk - PDF: citeseerx.ist.psu.edu
électronique et électrotechnique - iate.europa.eu
Metamaterial-based zeroth-order resonant antennas for mimo applications...2.27 GHz) metamaterial-based zeroth-order resonant antenna system consisting of epsi-lon-negative (ENG) and mu-negative (MNG) structures is proposed....
général - core.ac.uk - PDF: ocean.kisti.re.kr
Low-interference dual resonant antenna configurations for multistandard multifunction handsets and portable computersLow-interference dual resonant antenna configurations are developed for multistandard multifunction mobile handsets and portable computers....
 PDF: doaj.org
Bandwidth enhancement and further size reduction of a class of miniaturized slot antennas... The overall BW of a proposed double resonant antenna is shown to be increased by more than 94 % compared with a single resonant antenna occupying the same area....
Mim crlh series mode zeroth order resonant antenna (zora)Abstract — A metal-insulator-metal (MIM) composite right/left-handed (CRLH) series mode zeroth order resonant antenna (ZORA) implemented in LTCC technology is presented and demonstrated to exhibit excellent efficiency (71%) and co-to-cross polarization performances, in addition...

Exemples français - anglais

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pouvoir exécutif et administration publique / communication / politique et structures industrielles - iate.europa.eu
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Traductions en contexte français - anglais

Cette invention concerne également un ensemble antenne comprenant une antenne accordée par capacité.

The invention also relates to an antenna assembly including a capacitively loaded antenna.

électronique et électrotechnique - wipo.int
La configuration d'antenne comporte une première antenne accordée à un premier téléphone cellulaire fonctionnant à une fréquence et une deuxième antenne accordée à un deuxième téléphone cellulaire fonctionnant à une deuxième fréquence.

The antenna configuration comprises a first antenna tuned to a first cell phone operating frequency and a second antenna tuned to a second cell phone operating frequency.

électronique et électrotechnique - wipo.int
Il comprend un générateur hyperfréquence accordable (26) couplé par l'intermédiaire d'un câble coaxial (36) à une antenne accordée à microbande étroite (38) traversée par un trou (72).

A contactless apparatus for measuring contaminants in a semiconductor specimen (24) includes a tunable microwave generator (26) coupled by a coaxial cable (36) to a tuned narrowband microstrip antenna (38) that defines a through hole (72).

industrie mécanique - wipo.int
En position d'utilisation, l'élément d'antenne et l'élément conducteur forment une antenne accordée de manière optimale sur la fréquence du réseau sans fil le moins susceptible de subir les parasites provoqués par le corps humain.

In the operational position, the antenna element and the conductive element form an antenna optimally tuned to the frequency of the wireless network that is less subject to interference by the user.

électronique et électrotechnique - wipo.int


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