Antennes RFID ka danfara .

RFID antenna ye RFID sitɛmu yɔrɔ nafama ye, min ye ɲɔgɔndan minɛn ye sɛrɛkili ni yɔrɔ cɛ. O ye finɛtiri ye min bɛ se ka kɛ ka jikuru ɲɛminɛbaga ni yɔrɔ hɔrɔnyalen fanga sɛgɛsɛgɛli kɛ. RFID antɛniw suguya caman bɛ yen, minnu bɛ se ka baara kɛ ni u ka fɔtaw ye, kuntilenna, wajibiw, ani ko wɛrɛw.

Antennes RFID ka danfara .
RFID antɛniw bɛ se ka tila caman na ka kɛ RFID tag antennaw ye ani RFID kalanbaga/sɛbɛnnikɛlan antɛniw, minnu bɛ se ka tila ka taa a fɛ ka kɛ antennaw ye minnu bɛ se ka kɛ fɛn bɛɛ ye ani antɛniw siratigɛ la ka da u ɲɛsincogo kan Ka Kɛɲɛ ni danfara yecogo la, a bɛ Se ka Tla fana antɛniw ni antɛni planw, a ɲɔgɔnnaw ye; Ka kɛɲɛ ni antɛniw dilanni taabolo ye, cogoya jɔnjɔn saba bɛ yen: bobine suguya, mikrostrip patch suguya, ani dipole suguya.

Frequency low ani high frequency RFID basigilen bɛ baara kɛ ni coil antennas ye, a ka c’a la, u bɛ baara kɛ ni nɛgɛbere ye. bobine antenna bobine nɛgɛ nɛgɛ la ka kɛ plan ye walima k’a lamini magnetic core la. strictly stactly, nin bobine suguya tɛ se ka jate antenna ye, nka tiɲɛ na a ye coil inductance effect ye ani a bɛ kɛ ni quartier simple ye{2} quart{3{2 yɔrɔ min bɛ tali kɛ o yɔrɔ la min bɛ tali kɛ coil la. Baara bɛ kɛ ni frequences (fɔkan) caman ye, antenna (antɛni) hakɛ min bɛ joginda la, o ka dɔgɔ kosɛbɛ ka tɛmɛ frequences (fɔkan) dɔgɔmanw kan, o min bɛ RFID antennas (antɛniw) caman dilanni nɔgɔya ani ka u sɔngɔ dɔgɔya.

The antennas used in ultra-high frequency RFID are real antennas, and there are many etching processes used, including copper etching antennas and aluminum etching antennas. The processes are also relatively mature, and antennas are required for electronic tags and readers in ultra-high frequency RFID. The antenna in electronic tags needs to be matched with a complex impedance, which is determined by the tag chip, and Puce kelen-kelen bɛɛ ka impedansi gɛlɛn bɛ danfara. O la, antenna layini suguya tɛ se ka kɛ diɲɛ bɛɛ ta ye, wa chip kura bɛ antenna min dilannen don kokura, o bɛ antenna ({5}} antennas ultra-high ultra-high frequences suguya caman bɛ yen, ani minnu bɛ kɛ ka caya, olu ye dipole antennas ye. dipole antennas bɛ kɛ ni signal straight fila ye minnu bɛ kɛ ni fɛnɲɛnamafagalan ye min bɛ kɛ ni fɛn kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ye kelen ye, ani ni janya ni janya kelen ye, ani ni u janya ye kelen ye, ani ni u janya ye kelen ye. Endpoints. Antenna janya bɛ frequency range (fɔkan hakɛ) latigɛ. dipole antennes (antɛni dipolew) nafa bɛ sɔrɔ radiation (fiɲɛ) fanga ɲuman na, a jɔcogo nɔgɔman na, ani a ka baarakɛcogo ɲuman na; Antenna ultra-high frequency bɛ kɛ kɛrɛnkɛrɛnnenya la ni antennaw ye minnu bɛ kɛ ni plate ye, ka fara antennaw kan minnu bɛ kɛ ni bere ye ani antennas near-field{. RFID ultra-high frequency kɔnɔ, antenna ye fɛn nafamaw dɔ ye minnu bɛ kalan janya dɔn, ani fiɲɛ hakɛ ni a ɲɛsincogo bɛ latigɛ pewu antenna. fɛ.

Microstrip patch antennaw bɛ ni cogoya ye min bɛ kɛ ni u cogoya ye, u girinya ka nɔgɔn, u baarakɛcogo nɔgɔman, ani kuran baarakɛcogo caman. u bɛ kɛ ni fiɲɛbɔlanw ɲɛminɛlanw ye minnu sirilen bɛ dielektriki substratw la ni nɛgɛw ye. ka da antɛni ka kɛnɛyacogo kan, patch conducteurs bɛ se ka dilan cogo caman na{{2} the microstrost patch antenna of actung antenna. Rectangle janya ni a bonya A bɛ frequency range{3}} latigɛ.

Antenne RFID ka paramètres techniques .
RFID kalanbaga ka antɛni ka fɛɛrɛbɔ paramɛtiri jɔnjɔnw ye frequency band, gain, standing wave, ɲɛfɛ ni kɔfɛ ratio, beam width, ani polarization direction; RFID tag antenna ka fɛɛrɛbɔ paramɛtɛrɛw ye frequency band, gain, polarization direction, standing wave, directionnel pattern, etc{0}} ye kosɛbɛ.

1. tɔnɔ .
Gain coefficient ye paramɛtiri ye min bɛ antɛni dɔ fanga jiginni ni a ɲɛsincogo jateminɛ kosɛbɛ. O ye sirako coefficient ni antenna nafama sɔrɔcogo ye{. Antenna siratigɛ coefficients faralen ɲɔgɔn kan, gain coefficient hakɛ bɛ caya.

2. Polarize siratigɛ la .
Polarize jogo bɛ tali kɛ kuran foro taamasiyɛn sira fɛ waati caman na antɛni dɔ ka radiyali siratigɛ la. Polarize sira ye antɛni ka kuran foro sira ye, ani antɛni ka polarisiyɔn fɛɛrɛw ye polarizasiyɔn liniyali (polarize horizontal ani polarisasiyɔn jɔlen) ani polarizɛli (antɛni) ye (polarize) ani polarizɛli kininfɛ-bololanɛgɛ){Charazation right-handed

Jɛnkulu kɔnɔ, baarakɛcogo minnu bɛ se ka kɛ ni fɛnw ye minnu bɛ se ka kɛ ɲɔgɔn fɛ, olu ka teli ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ fɛn ye min bɛ se ka kɛ ka fɛnw ye minnu bɛ se ka kɛ fɛn ye min bɛ se ka kɛ ka fɛnw ye minnu bɛ se ka kɛ ka fɛnw ye minnu bɛ se ka kɛ fɛn ye min bɛ se ka kɛ ka fɛnw ye minnu bɛ se ka kɛ ka fɛnw ye minnu bɛ se ka kɛ ka fɛnw ye minnu bɛ se ka kɛ ka fɛnw ye minnu bɛ se ka kɛ ka fɛnw ye minnu bɛ se ka kɛ ka fɛnw ye. Dipole ni microstrip patch antennaw bɛ kɛ ultra-high frequency long-distance application systems sanfɛ 1m.