Pakati pa matekinoloje olumikizirana opanda zingwe, ubale womwe ulipo pakati pa chipangizo cholumikizira opanda zingwe ndi mlongoti wa dongosolo la RFID ndiwopadera kwambiri.M'banja la RFID, tinyanga ndi RFID ndizofunikanso.RFID ndi tinyanga zimadalirana komanso sizilekanitsidwa.Kaya ndi owerenga RFID kapena tag ya RFID, kaya ndiukadaulo wapafupipafupi wa RFID kapena ukadaulo wapamwamba kwambiri wa RFID, sichingasiyane ndimlongoti.
Chithunzi cha RFIDmlongotindi chosinthira chomwe chimatembenuza mafunde owongolera omwe amafalikira pamzere wopatsira kukhala mafunde amagetsi omwe amafalikira mopanda malire (nthawi zambiri malo aulere), kapena mosemphanitsa.Mlongoti ndi gawo la zida za wailesi zomwe zimagwiritsidwa ntchito pofalitsa kapena kulandira mafunde amagetsi.Mphamvu yamagetsi yamagetsi yawayilesi imatengedwa kupita ku mlongoti kudzera mu feeder (chingwe), ndipo imawunikiridwa ndi mlongoti mu mawonekedwe a mafunde amagetsi.Pambuyo pa mafunde a electromagnetic kufika kumalo olandirira, amalandiridwa ndi mlongoti (gawo laling'ono chabe la mphamvu limalandira) ndikutumizidwa kwa wolandira wailesi kudzera mu feeder, monga momwe tawonetsera pa chithunzi pansipa.
Mfundo yowunikira mafunde a electromagnetic kuchokera ku tinyanga ta RFID
Waya akanyamula magetsi osinthasintha, amawunikira mafunde a electromagnetic, ndipo mphamvu yake ya radiation imagwirizana ndi kutalika ndi mawonekedwe a waya.Ngati mtunda pakati pa mawaya awiriwa uli pafupi kwambiri, malo amagetsi amamangidwa pakati pa mawaya awiri, kotero kuti ma radiation ndi ofooka kwambiri;pamene mawaya awiriwa akufalikira padera, magetsi amafalikira kumalo ozungulira, kotero kuti ma radiation amawonjezeka.Pamene kutalika kwa waya kumakhala kochepa kwambiri kuposa kutalika kwa mawonekedwe a electromagnetic wave, ma radiation ndi ofooka kwambiri;pamene kutalika kwa waya kumafanana ndi kutalika kwa mafunde a electromagnetic wave, mawaya amakono amawonjezeka kwambiri, ndikupanga ma radiation amphamvu.Waya wowongoka womwe watchulidwa pamwambapa womwe ungapange ma radiation ofunikira nthawi zambiri umatchedwa oscillator, ndipo oscillator ndi mlongoti wosavuta.
Kutalikirapo kwa mafunde a mafunde a electromagnetic, kumapangitsa kukula kwa tinyanga.Mphamvu yochulukirapo yomwe ikufunika kuwunikira, kukula kwa mlongoti kumakulirakulira.
Kuwongolera kwa mlongoti wa RFID
Mafunde a electromagnetic omwe amawunikiridwa ndi tinyanga amalunjika.Kumapeto kwa mlongoti, kuwongolera kumatanthawuza kutha kwa mlongoti kutulutsa mafunde a electromagnetic mbali ina yake.Pakulandira, kumatanthauza kuthekera kwa mlongoti kulandira mafunde amagetsi kuchokera mbali zosiyanasiyana.Chithunzi chogwira ntchito pakati pa mawonekedwe a ma radiation a antenna ndi makonzedwe a malo ndi mawonekedwe a mlongoti.Kusanthula kachitidwe ka mlongoti kumatha kusanthula momwe mlongoti umayendera, ndiko kuti, kuthekera kwa mlongoti potumiza (kapena kulandira) mafunde amagetsi mbali zonse mumlengalenga.Kuwongolera kwa mlongoti nthawi zambiri kumayimiridwa ndi mapindikidwe pa ndege yowongoka ndi ndege yopingasa yomwe imayimira mphamvu ya mafunde a electromagnetic owulutsidwa (kapena kulandiridwa) mbali zosiyanasiyana.
Popanga kusintha kofananira ndi kapangidwe ka mkati mwa mlongoti, kuwongolera kwa mlongoti kumatha kusinthidwa, potero kupanga mitundu yosiyanasiyana ya tinyanga tosiyanasiyana.
Kuchulukitsa kwa antenna a RFID
Kupeza kwa mlongoti kumatanthawuza kuchuluka kwa momwe mlongoti umawalitsira mphamvu zolowetsa mokhazikika.Kuchokera pamalingaliro a chitsanzocho, chochepetsera lobe chachikulu, chochepa cha lobe cham'mbali, ndi kupindula kwakukulu.Mu uinjiniya, kupindula kwa mlongoti kumagwiritsidwa ntchito kuyeza kuthekera kwa mlongoti kutumiza ndi kulandira zikwangwani mbali ina yake.Kuchulukitsa phindu kumatha kukulitsa kufalikira kwa netiweki mbali ina, kapena kuonjezera phindu pamlingo wina.Pazikhalidwe zomwezo, kupindula kwakukulu, ndipamene mafunde a wailesi amafalikira.
Gulu la RFID tinyanga
Dipole antenna: Imatchedwanso symmetrical dipole antenna, imakhala ndi mawaya awiri owongoka omwe ali makulidwe ndi kutalika komwe amakonzedwa molunjika.Chizindikirocho chimadyetsedwa kuchokera ku mapeto awiri omwe ali pakati, ndipo kugawa kwina kwamakono kudzapangidwa pa mikono iwiri ya dipole.Kugawa kwapano kumeneku kudzasangalatsa gawo lamagetsi mumlengalenga mozungulira mlongoti.
Mlongoti wa koyilo: Ndi imodzi mwa tinyanga zomwe zimagwiritsidwa ntchito kwambiri pamakina a RFID.Nthawi zambiri amapangidwa ndi mawaya okulungidwa m'magulu ozungulira kapena amakona anayi kuti athe kulandira ndikutumiza maginito amagetsi.
Mlongoti wa RF wophatikizidwa mochititsa chidwi: Mlongoti wa RF wophatikizidwa molumikizana nthawi zambiri umagwiritsidwa ntchito polumikizana pakati pa owerenga RFID ndi ma tag a RFID.Amaphatikizana ndi mphamvu ya maginito yomwe amagawana.Minyanga iyi nthawi zambiri imakhala yozungulira kuti ipange gawo la maginito logawana pakati pa owerenga RFID ndi tag ya RFID.
Mlongoti wa Microstrip: Nthawi zambiri umakhala wosanjikiza wopyapyala wachitsulo womata pansi.Microstrip patch antenna ndi yopepuka kulemera, yaying'ono mu kukula, ndi yopyapyala mu gawo.Wodyetsa ndi maukonde ofananira amatha kupangidwa nthawi imodzi ndi mlongoti, ndipo amagwirizana kwambiri ndi njira yolumikizirana.Maulendo osindikizidwa amaphatikizidwa palimodzi, ndipo zigamba zimatha kupangidwa pogwiritsa ntchito njira za photolithography, zomwe zimakhala zotsika mtengo komanso zosavuta kupanga zambiri.
Yagi antenna: ndi mlongoti wolunjika wokhala ndi dipoles awiri kapena kupitilira apo.Nthawi zambiri amagwiritsidwa ntchito kukulitsa mphamvu zama siginecha kapena kulumikizana ndi ma waya opanda zingwe.
Mlongoti wokhala ndi mphako: Ndi mlongoti momwe mlongoti ndi chodyetsa zimayikidwa pabowo lakumbuyo lomwelo.Amagwiritsidwa ntchito kwambiri pamakina othamanga kwambiri a RFID ndipo amatha kupereka mawonekedwe abwino komanso kukhazikika.
Microstrip linear antenna: Ndi mlongoti wocheperako komanso woonda, womwe umagwiritsidwa ntchito pazida zing'onozing'ono monga zida zam'manja ndi ma tag a RFID.Amapangidwa kuchokera ku mizere ya microstrip yomwe imapereka magwiridwe antchito ang'onoang'ono.
Spiral Antenna: Mlongoti wokhoza kulandira ndi kutumiza mafunde ozungulira polarized electromagnetic.Nthawi zambiri amapangidwa ndi waya wachitsulo kapena chitsulo chachitsulo ndipo amakhala ndi mawonekedwe amodzi kapena angapo ozungulira.
Pali mitundu yambiri ya tinyanga tomwe timagwiritsa ntchito nthawi zosiyanasiyana monga ma frequency osiyanasiyana, zolinga zosiyanasiyana, zochitika zosiyanasiyana, komanso zofunikira zosiyanasiyana.Mtundu uliwonse wa antenna uli ndi mawonekedwe ake apadera komanso zochitika zomwe zimagwira ntchito.Posankha mlongoti woyenera wa RFID, muyenera kusankha kutengera zomwe mukufuna komanso momwe chilengedwe chikuyendera.
Kuti mudziwe zambiri za antennas, chonde pitani:
Foni: 0086-028-82695327
Nthawi yotumiza: May-15-2024
