Phakathi kobuchwepheshe bokuxhumana okungenazintambo, ubuhlobo kuphela phakathi kwedivayisi yokudlulisa okungenantambo kanye nothi lwesistimu ye-RFID yibo obukhetheke kakhulu.Emndenini we-RFID, izimpondo kanye ne-RFID amalungu abaluleke ngokulinganayo.I-RFID nezimpondo zincike kwelinye futhi azihlukaniseki.Kungakhathaliseki ukuthi ngumfundi we-RFID noma umaka we-RFID, noma ngabe ubuchwepheshe be-RFID bemvamisa ephezulu noma ubuchwepheshe be-RFID be-ultra-high-frequency RFID, ayinakuhlukaniswa kusukelauthi.
I-RFIDuthiyisiguquli esiguqula amagagasi aqondisiwe asabalalisa emugqeni wokudlulisela abe amaza kazibuthe kagesi asakazeka endaweni engenamkhawulo (imvamisa isikhala esikhululekile), noma okuphambene nalokho.I-antenna iyingxenye yezinto zomsakazo ezisetshenziselwa ukudlulisa noma ukwamukela amagagasi kagesi.Ukukhishwa kwamandla esignali yefrikhwensi yomsakazo ngesidluliseli somsakazo kuthuthwa ku-antenna ngesiphakeli (ikhebula), futhi kukhishwe uthingo ngendlela yamagagasi kagesi.Ngemva kokuba igagasi likagesi lifika endaweni yokwamukela, litholwa uthi (ingxenye encane kuphela yamandla etholwayo) bese ithunyelwa kumamukeli womsakazo ngesiphakeli, njengoba kuboniswe esithombeni esingezansi.
Umgomo wokukhipha amaza kagesi kusuka kuzimpondo ze-RFID
Uma intambo iphethe i-alternate current, izokhipha amaza kagesi, futhi amandla ayo emisebe ahlobene nobude nokuma kwentambo.Uma ibanga phakathi kwezintambo ezimbili liseduze kakhulu, insimu kagesi iboshwe phakathi kwezintambo ezimbili, ngakho-ke imisebe ibuthakathaka kakhulu;lapho izintambo ezimbili zisakazwa ngokuhlukana, insimu kagesi isakazwa endaweni ezungezile, ngakho imisebe iyathuthukiswa.Uma ubude bocingo buncane kakhulu kunobude begagasi begagasi logesi elikhishwayo, imisebe ibuthakathaka kakhulu;lapho ubude bocingo buqhathaniswa nobude begagasi begagasi lozibuthe kagesi, i-current on the wire ikhula kakhulu, yakhe imisebe enamandla.Intambo eqondile eshiwo ngenhla engakhiqiza imisebe ebalulekile ngokuvamile ibizwa ngokuthi i-oscillator, kanti i-oscillator iyi-antenna elula.
Uma ubude begagasi begagasi begagasi be-electromagnetic bubude, buba bukhulu usayizi we-antenna.Lapho amandla engeziwe adinga ukukhazinyuliswa, aba mkhulu usayizi we-antenna.
Ukuqondisa kwe-antenna ye-RFID
Amagagasi kagesi asakazwa uthi ayaqondisa.Ekupheleni kokudlulisela kwe-antenna, ukuqondisa kubhekisela ekhonweni le-antenna lokukhipha amaza kagesi ohlangothini oluthile.Ngesiphetho sokwamukela, kusho ikhono le-antenna lokwamukela amagagasi kazibuthe kagesi esuka ezindaweni ezihlukene.Igrafu yokusebenza phakathi kwezimpawu zemisebe ye-antenna kanye nezixhumanisi zendawo iyiphethini yothi.Ukuhlaziya iphethini ye-antenna kungahlaziya izici zemisebe ye-antenna, okungukuthi, ikhono le-antenna lokudlulisa (noma ukwamukela) amagagasi kagesi kuzo zonke izinkomba emkhathini.Ukuqondisa kwe-antenna kuvame ukumelelwa amajika endizeni eqondile kanye nendiza evundlile emele amandla amaza kagesi asakazwayo (noma atholiwe) ngezindlela ezihlukene.
Ngokwenza izinguquko ezihambisanayo esakhiweni sangaphakathi se-antenna, ukuqondisa kwe-antenna kungashintshwa, ngaleyo ndlela kwakhiwe izinhlobo ezahlukene zezimpondo ezinezici ezihlukene.
Ukuzuza kwe-antenna ye-RFID
Ukuzuza kwe-antenna kuchaza ngobuningi izinga i-antenna ekhipha ngalo amandla okufaka ngendlela egxilile.Ngokombono wephethini, i-lobe eyinhloko iyancipha, i-lobe eseceleni iba yincane, futhi inzuzo ephezulu.Kubunjiniyela, inzuzo ye-antenna isetshenziselwa ukukala ikhono le-antenna ukuthumela nokwamukela amasignali ngendlela ethile.Ukwandisa inzuzo kungakhuphula ukumbozwa kwenethiwekhi endaweni ethile, noma kukhuphule umkhawulo wokuzuza ngaphakathi kwebanga elithile.Ngaphansi kwezimo ezifanayo, lapho inzuzo iyanda, yilapho igagasi lomsakazo libhebhetheka kude.
Ukuhlukaniswa kwama-antenna e-RFID
I-antenna ye-Dipole: Ebizwa nangokuthi i-antenna ye-dipole elinganayo, iqukethe izintambo ezimbili eziqondile ezinogqinsi olufanayo nobude obuhlelwe ngomugqa oqondile.Isignali inikezwa kusukela ezindaweni ezimbili zokugcina phakathi, futhi ukusatshalaliswa okuthile kwamanje kuzokwenziwa ezingalweni ezimbili ze-dipole.Lokhu kusatshalaliswa kwamanje kuzojabulisa inkambu kazibuthe esikhaleni esizungeze uthi.
I-coil antenna: Ingolunye lwezimpondo ezisetshenziswa kakhulu ezinhlelweni ze-RFID.Ngokuvamile zenziwa ngezintambo eziboshwe ezakhiweni eziyindilinga noma eziwunxande ukuze zikwazi ukwamukela nokudlulisa amasignali kazibuthe kagesi.
I-antenna ye-RF ehlanganiswe ngokungenisa: I-antenna ye-RF ehlanganiswe ngokungenisa imvamisa isetshenziselwa ukuxhumana phakathi kwabafundi be-RFID namathegi e-RFID.Bashada endaweni eyodwa enozibuthe.Lawa ma-antenna ngokuvamile anesimo esizungezayo ukuze akhe inkambu kazibuthe okwabelwana ngayo phakathi komfundi we-RFID nomaka we-RFID.
I-Microstrip patch antenna: Imvamisa ungqimba oluncane lwensimbi olunamathiselwe endizeni ephansi.I-Microstrip patch antenna inesisindo esilula, incane ngosayizi, futhi izacile ngesigaba.I-feeder nenethiwekhi ehambisanayo ingakhiqizwa ngesikhathi esifanayo ne-antenna, futhi ihlobene eduze nohlelo lwezokuxhumana.Amasekhethi aphrintiwe ahlanganiswe ndawonye, futhi ama-patches angenziwa kusetshenziswa izinqubo ze-photolithography, ezingabizi kakhulu futhi kulula ukuzikhiqiza ngobuningi.
I-Yagi antenna: i-antenna eqondisayo equkethe ama-dipoles amagagasi amabili noma ngaphezulu.Zivame ukusetshenziselwa ukuthuthukisa amandla esignali noma ukuqhuba ukuxhumana okungenantambo okuqondisayo.
I-antenna ene-cavity-backed: I-antenna lapho ithiyo ne-feeder zibekwe endaweni efanayo yangemuva.Avame ukusetshenziswa ezinhlelweni ze-RFID zefrikhwensi ephezulu futhi anganikeza ikhwalithi yesiginali enhle nokuzinza.
I-Microstrip linear antenna: Iwuthi oluncane oluncane futhi oluncane, oluvame ukusetshenziswa kumadivayisi amancane njengamadivayisi eselula kanye namathegi e-RFID.Zakhiwe ngemigqa ye-microstrip enikeza ukusebenza okuhle ngosayizi omncane.
I-Spiral Antenna: I-antenna ekwazi ukwamukela nokudlulisa amaza kagesi ayindilinga ayizibuthe.Ngokuvamile zenziwa ngocingo lwensimbi noma ngeshidi lensimbi futhi zinesakhiwo esisodwa noma eziningi ezimise okwe-spiral.
Kunezinhlobo eziningi zezimpondo ezingasetshenziswa ezimeni ezihlukene njengamaza ahlukene, izinjongo ezihlukene, izikhathi ezahlukene, kanye nezidingo ezahlukene.Uhlobo ngalunye lwe-antenna lunezici zalo ezihlukile kanye nezimo ezisebenzayo.Lapho ukhetha uthi lwe-RFID olufanele, udinga ukukhetha ngokusekelwe ezidingweni zangempela zohlelo lokusebenza nezimo zemvelo.
Ukuze ufunde kabanzi ngama-antenna, sicela uvakashele:
Ucingo: 0086-028-82695327
Isikhathi sokuthumela: May-15-2024
