Ukuhlukaniswa kwezimpondo ze-RFID

I-RFID Antenna iyingxenye ebalulekile yohlelo lwe-RFID, okuyidivaysi ebonakalayo phakathi kwesifunda nendawo. Kuyifasitela lokuguqula i-wave eqondisiwe kanye namandla we-Space Wave. Kunezinhlobo eziningi ze-RFID antennas, ezingasetshenziswa kumafrikhwensi ahlukile, izinhloso, izikhathi, izidingo, nakwezinye izimo.

Ukuhlukaniswa kwezimpondo ze-RFID
I-RFID Antennas ngokuvamile ingahlukaniswa yaba yi-RFID Tag Antennas kanye ne-RFID Reader / Umbhali Ngokusho komehluko ngokubukeka, kungahlukaniswa futhi kube yizimpondo eziqondile kanye nezimpondo zeplanethi, njll; Ngokusho kwenqubo yokwakhiwa kwezimpondo, kunamafomu amathathu ayisisekelo: Uhlobo lwe-Coil, uhlobo lwe-MicroSTrip Patch, nohlobo lwe-Dipole.

Imvamisa ephansi kanye nemvamisa ephezulu i-RFID isebenzisa ama-antennas e-coil, imvamisa usebenzisa ucingo lwethusi. I-antenna yekhoyili ikholisa i-wire yensimbi ibe yindiza noma isindise ngokuzungeza umgogodla kazibuthe. Ekhuluma ngokuqinile, lolu hlobo lwekhoyili alunakubhekwa njenge-antenna, kepha empeleni kuyindlela yokuqalisa ye-coil pantac futhi inenqubo elula. Indawo yekhoyili ihlobene nebanga lokuqashelwa. Ngenxa yemvamisa ephezulu esetshenziswe kumafrikhwensi aphezulu, inani lemibuthano i-antenna lilimele ngaphansi kwamafrikhwensi aphansi, okwenza ukukhiqizwa kwezimali eziphansi -.

Izimpondo ezisetshenziswa e-Ultra - Imvamisa i-RFID ephezulu iyizinqubo zangempela, futhi kunezindlela eziningi zokugcina ezisetshenzisiwe, kufaka phakathi izimpondo ze-aluminium etching. Izinqubo futhi zivuthiwe futhi, futhi izimpondo ziyadingeka kumathegi kagesi nabafundi e-Ultra - Imvamisa i-RFID ephezulu. I-antenna kumathegi e-elekthronikhi idinga ukufaniswa nokuvinjwa okuyinkimbinkimbi, okunqunywa yi-tag chip, kanye nokuvinjwa okuyinkimbinkimbi kwe-chip ngayinye kwehlukile. Ngakho-ke, uhlobo lomugqa we-antenna alukwazi ukuba sendawo yonke, futhi i-chip entsha idinga i-antenna eyenziwe kabusha. Kunezinhlobo ezahlukahlukene ze-Ultra - Amathebulethi wemvamisa eliphakeme kakhulu, futhi abavame ukusetshenziswa yi-Dipole antennas. I-Dipole antennas yakhiwa izintambo ezimbili eziqondile zobukhulu obufanayo nobude obuhlelwe ngomugqa oqondile, futhi isiginali idliswa emaphethelweni amabili aphakathi. Ubude be-antenna inquma ububanzi obuvame kakhulu. I-Dipole Antennas inezinzuzo zemisebe enhle amandla, isakhiwo esilula, kanye nokusebenza okuphezulu; I-Ultra - I-antenna evamile yemvamisa i-antenna ephezulu yakhiwa ama-antenna abunjiwe amapuleti, ngaphezu kwama-antennas abunjiwe enduneni naseduze -. E-Ultra - Imvamisa i-RFID ephezulu, i-antenna ingenye yezinto ezibalulekile zokunquma zokufunda ibanga, futhi uhla lwemisebe kanye nesiqondisi kunqunywa ngokuphelele yi-antenna.

Izimpondo ze-MicroSTrip Patch zinezici zephrofayili ephansi, isisindo esikhanyayo, ukucubungula okulula, ukuvumelanisa okulula ngezinto, nokusebenza kukagesi okuhlukahlukene. Ziyakhiwa ngemisebe ye-radiation patch abaqhubi banamathiselwe ezitolo ezisetshenziselwa ama-dielectric ngezigatshana zensimbi. Ngokusekelwe kwizici zemisebe ye-antenna, abaqhubi be-patch bangaklanywa ngezimo ezahlukahlukene. I-MicroSTRIP Patch Antenna iqukethe ibhodi yesekethe elinesikwele ekugcineni, futhi ubude nobubanzi boxande kunquma uhla lwemvamisa.

Amapharamitha obuchwepheshe we-RFID Antenna
Amapharamitha aphambili wezobuchwepheshe we-RFID Reader Antenna afaka i-Frequency Band, inzuzo, i-Standing Wave, phambili kwisilinganiso sangemuva, ububanzi be-Beam, kanye ne-Polarization Direction; Amapharamitha wezobuchwepheshe we-RFID Tag Antenna ikakhulukazi afaka i-Frequency Band, inzuzo, ukuqondiswa kombala, igagasi elimile, iphethini yokuqonda, njll.

1. Inzuzo
I-Gain Coeffrentn iyipharamitha ekala ngokugcwele ukuguqulwa kwamandla kanye nezici eziqondayo ze-antenna. Kungumkhiqizo we-coefficials eqondayo kanye nokusebenza kahle kwe-antenna. Lapho kuphakama inani lama-coefficients aqondiswa yi-antenna, akhuphuka kakhulu.

2. Ukuqondisa kombala
Izici ze-Polarization zibhekisele ekuhlukaneni kwesikhashana kokuqondisa kwe-verector ye-Electric Field endaweni yokuqondisa ye-radiation ye-antenna. Isiqondisi se-polarization siyindlela yenkundla kagesi ka-Antenna, kanye nezindlela zokugabela ze-antenna zifaka i-polarization eqondile (polarization evundlile kanye ne-polarization eyindilinga (kwesokunxele -.

Ngokuvamile, okuvame ukukhuluma {{0-} inani eliphakeme eliphakeme I-Dipole ne-MicroSTrip Patch Antennas zisetshenziswa e-Ultra - imvamisa ephezulu}