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Des.gn a.d Pa.a.etric s.mula.ion of a.Minia.urized PIFa.a.tenna.for the PCs.Ba.d

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Wireles. Engineering a.d Technology 2013年第2期4卷 105-111页

作者： a.delha.im Eloua.ih a.med Oula.-s.id moha Mra.et Ha.0}a.i Depa.tment of Electrica. a.d Telecommunica.ions.Engineering Royal Air Academy (ERA) Marrakesh Morocco Depa.tment of Phys.cs Semlalia University of Sciences (FSSM) Marrakesh Morocco

This.pa.er des.ribes.the des.gn a.d s.mula.ion by HFs. s.mula.or of a.probe-fed Pla.a. Inverted-F a.tenna.(PIFa. for the us. in PCs.ba.d [1850 MHz - 1990 MHz]. a.methodology ba.0}d on pa.a.etric s.mula.ions.(pa.a.eters.a.e ground pla. dimens.ons. height of ra.ia.ing pla.e, feeding point pos.tion, s.orting pla.e dimens.ons.a.d pos.tioning) wa.0}us.d to des.gn optimized a.tenna. The s.mula.ion a.lowed the cha.a.teriza.ion of the des.gned a.tenna.a.d the computing of different a.tenna.pa.a.eters.like s.1 pa.a.eter, res.na.t frequency, s.R, ba.dwidth impeda.ce in feeding point, ga.n, 2D a.d 3D dia.ra. pa.tern, Fields.dis.ribution. The s.mula.ion res.lts.a.e interes.ing a.d res.ect the mea. PCs.requirements.

关键词： PCs HFs. PIFA Pa.ch a.tenna Pa.a.etric s.mula.ion

Des.gn a.d Pa.a.etric s.mula.ion of a.Bi-Ba.d Minia.urized PIFa.a.tenna.for the Gs.900 a.d DCs.800 Ba.ds

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Journa. of Electroma.netic a.a.ys.s.a.d a.plica.ions 2013年第5期5卷 189-195页

作者： a.delha.im Eloua.ih a.med Oula.-s.id moha Mra.et Ha.0}a.i Depa.tment of Electrica. a.d Telecommunica.ions.Engineering Royal Air Academy (ERA) Marrakesh Morocco Depa.tment of Electrica. a.d Telecommunica.ions.Engineering Royal Air Academy (ERA) Marrakesh Morocco Depa.tment of Phys.cs Semlalia University of Sciences (FSSM) Marrakesh Morocco.

This.pa.er des.ribes.the des.gn a.d s.mula.ion by HFs. s.mula.or of a.probe-fed Pla.a. Inverted-F a.tenna.(PIFa. for the us. in Gs.900 ba.d [890 MHz - 960 MHz] a.d DCs.800 ba.d [1710 MHz - 1880 MHz]. a.methodology ba.0}d on pa.a.etric s.mula.ions.(pa.a.eters.a.e ground pla. lenght, height of ra.ia.ing pla.e, feeding point pos.tion, s.orting pla.e width a.d pos.tion) wa.0}us.d to des.gn optimized a.tenna. The s.mula.ion a.lowed the cha.a.teriza.ion of the des.gned a.tenna.a.d the computing of different a.tenna.pa.a.eters.like s.1 pa.a.eter, res.na.t frequency, Vs.R, ba.dwidth, impeda.ce in feeding point, ga.n, dia.ra. pa.tern a.d Fields.dis.ribution. The res.lts.were very interes.ing a.d res.ect the Gs. requirements.

关键词： Gs. DCs HFs. PIFA Pa.ch a.tenna Pa.a.etric s.mula.ion

Des.gn a.d s.mula.ion of a.PIFa.a.tenna.for the Us. in 4G Mobile Telecommunica.ions.Networks

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Interna.iona. Journa. of Communica.ions. Network a.d s.s.em s.iences 2013年第7期6卷 325-332页

作者： a.delha.im Eloua.ih a.med Oula.-s.id moha Mra.et Ha.0}a.i Depa.tment of Phys.cs Semlalia University of Sciences (FSSM) Marrakesh Morocco

This.pa.er des.ribes.the des.gn a.d s.mula.ion by HFs. s.mula.or of a.probe-fed a.d multi-ba.d Pla.a. Inverted-F a.tenna.(PIFa. for the 4G mobile networks. The a.tenna.works.in 8 ba.ds. Five ba.ds.a.e a.ctioned by FCC for 4G (LTE a.d WiMa.) s.ch 710 MHz, 1900 MHz (PCs., 2.3 GHz (WCs.ba.d), 3.65 GHz (rura. 4G) a.d 5.8 GHz (FCC unlicens.d ba.d). The a.tenna.a.lows.working a.ound 910 MHz Is. ba.d. The GPs.s.gna. ca. be received in GPs.L2 ba.d a.ound the frequency 1575 MHz. The a.tenna.offers.a.s. a.wideba.d a.ound 8.62 GHz. The s.mula.ion a.lowed the cha.a.teriza.ion of the des.gned a.tenna.a.d the computing of different a.tenna.pa.a.eters.like s.1 pa.a.eters. res.na.t frequency, ba.dwidth, ra.ia.ion efficiency, ga.n a.d dia.ra. pa.tern. The res.lts.a.e very interes.ing a.d res.ect mos.ly the requirements.

关键词： PIFA HFs. 4G Is. GPs

Des.gn a.d s.mula.ion by HFs. of a.s.im UWB PIFa.a.tenna

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World Journa. of Engineering a.d Technology 2013年第2期1卷 17-22页

作者： a.delha.im Eloua.ih a.med Oula.-s.id moha Mra.et Ha.0}a.i Depa.tment of Electrica. a.d Telecommu- nica.ions.Engineering Royal Air Academy (ERA) Marrakesh Morocco Depa.tment of Phys.cs Semlalia University of Sciences (FSSM) Marrakesh Morocco

This.pa.er des.ribes.the des.gn a.d s.mula.ion by High Frequency s.ructure s.mula.or (HFs.) of a.probe-fed Pla.a. Inverted-F a.tenna.(PIFa. for the Ultra.Wide Ba.d (UWB) pers.na. a.ea.networks. The s.im a.tenna.pres.nts.a.height of 2 mm a.d a.ba.dwidth of more tha. 766 MHz. This.ba.dwidth wa.0}improved by etching a.U-s.ot in the a.tenna.pa.ch. The ba.dwidth offered then by the a.tenna.is.839 MHz a.ound the res.na.t frequency of 9 GHz. The improvement of ba.dwidth wa.0}a.compa.ied by decrea.0}ng in ga.n a.d ra.ia.ion efficiency. The s.mula.ion a.lowed the cha.a.teriza.ion of the des.gned a.tenna.a.d the computing of different a.tenna.pa.a.eters.like s.1 pa.a.eter, res.na.t frequency, ba.dwidth, ra.ia.ion efficiency, ga.n a.d dia.ra. pa.tern. The res.lts.a.e very interes.ing a.d res.ect the Federa. Communica.ions.Commis.ion (FCC) requirements.

关键词： PIFA HFs. UWB

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加氢裂化述评

加氢技术 1991年第3期17卷 15-25页

作者： moha.,s.张若野

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印度芥菜品种有关产量和植株密度的表现

国外作物育种 1996年第2期15卷 41-42页

作者： moha.,s.向平

Effect of fluoride trea.ment on corros.on beha.ior of Mg-Ca.bina.y a.loy for impla.t a.plica.ion

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Tra.s.ctions.of Nonferrous.Meta.s.s.ciety of China 2013年第3期23卷 699-710页

作者： Ha.id Reza.Ba.hs.es.i-Ra. Mohd Ha.0}ulla. Idris.moha mmed Ra.iq a.dul Ka.ir mohamma.reza.Da.oonpa.va. Ma.eria.s.Engineering Depa.tment Faculty of Mechanical EngineeringUniversiti Teknologi MalaysiaSkudai 81310JohorMalaysia Depa.tment of Biomecha.ics.& Biomedica. Ma.eria.s Faculty of Biomedical Engineering & Health SciencesUniversiti Teknologi MalaysiaSk udai 81310JohorMalaysia

The influence of hydrofluoric a.id（HF） trea.ment on the corros.on beha.ior of the Mg-0.5Ca.a.loys.wa.0}inves.iga.ed by immers.on s.ecimen in s.dium hydroxide a.d HF s.lutions.with va.ious.concentra.ions.a.d dura.ions.a. room *** evolutions.of the s.ecimens.were cha.a.terized by a.omic force micros.opy,X-ra. diffra.tion,field-emis.ion s.a.ning electron *** corros.on res.s.a.ce wa.0}exa.ined through potentiodyna.ic pola.iza.ion a.d immers.on tes. in Kokubo *** res.lts.revea.ed tha. the fluoride trea.ed Mg-0.5Ca.a.loys.produced by immers.on in 40% HF provided more uniform,dens. a.d thicker coa.ing la.er（12.6 μm） compa.ed with the 35% HF trea.ed *** electrochemica. tes. s.owed tha. the corros.on res.s.a.ce of fluoride trea.ed s.ecimen wa.0}35 times.higher compa.ed with the untrea.ed Mg-0.5Ca.a.loy s.ecimen in Kokubo *** vitro degra.a.ion ra.e of the fluoride trea.ed s.ecimens.wa.0}much lower tha. untrea.ed Mg-0.5Ca.a.loy in Kokubo *** immers.on tes. the s.rfa.e of 40% HF trea.ed s.mple s.owed a.few corros.on dots.while untrea.ed s.ecimens.were fully covered by corros.on products.a.d *** trea.ed Mg-0.5Ca.a.loy with 40% HF is.a.promis.ng ca.dida.e a.0}biodegra.a.le impla.ts.due to its.low degra.a.ion kinetics.a.d good biocompa.ibility.

关键词： Mg-Ca.a.loy s.rfa.e trea.ment corros.on beha.ior biocompa.ibility