RFID antenna hrang hrangte thliar hranna .

RFID antenna hi RFID system-a thil pawimawh tak a ni a, chu chu circuit leh space inkara interface device a ni. Guided wave leh free space wave energy convert na tur window a ni. RFID antenna chi hrang hrang a awm a, chu chu frequency hrang hrang, thiltum, hun remchang, thil mamawh leh dinhmun dangah te hman theih a ni.

RFID antenna hrang hrangte thliar hranna .
RFID antennas hi a tlangpuiin RFID tag antennas leh RFID reader/writer antennas-ah then theih a ni a, chu chu an directionality a zirin omnidirectional antennas leh directional antennas-ah then belh theih a ni a A lan dan inang lo ang zelin linear antennas leh planar antennas, etc-ah te pawh a then theih bawk; Antennas design process atanga a lan dan chuan a bulpui ber pathum a awm a, chungte chu coil type, microstrip patch type, leh dipole type te an ni.

Low frequency leh high frequency RFID hian a bul berah chuan coil antenna an hmang a, a tlangpuiin copper wire an hmang thin. Coil antenna hian metal wire chu plane-ah a coil emaw, magnetic core-ah a khuh emaw a ni. Strict takin sawi ila, he coil chi hi antenna anga ngaih theih a ni lo va, a takah chuan coil mutual inductance effect a ni a, process awlsam tak a nei bawk. Coil area hi recognition distance nen a inzawm a ni. Frequency sang taka hman thin frequency sang tak avang hian antenna chu frequency hniam zawkah chuan a hliam tlem zawk hle a, chu chuan high-frequency RFID antennas siam chhuah chu a awlsamin a man a tlawm zawk a ni.

Ultra-high frequency RFID-a antenna hmante hi antenna tak tak an ni a, etching process tam tak hman a ni a, chung zingah chuan copper etching antennas leh aluminum etching antennas te pawh a tel. Process te pawh a puitling deuh a, electronic tag leh reader te tan ultra-high frequency RFID atan antenna a mamawh bawk. Electronic tag-a antenna chu complex impedance hmanga inmil a ngai a, chu chu tag chip hmanga teh a ni a, chip tin complex impedance chu a danglam vek a ni. Chuvangin, antenna line type chu universal a ni thei lo va, chip thar chuan antenna design thar a mamawh a ni. Ultra-high frequency tag antenna chi hrang hrang a awm a, hman tlanglawn ber chu dipole antennas a ni. Dipole antennas hi wire dinglam pahnih thickness inang leh a sei zawng line dik taka dahkhawm atanga siam a ni a, signal chu middle endpoint pahnih atanga pek a ni. Antenna sei zawng hian frequency range a tichiang a ni. Dipole antennas hian radiation energy tha tak, simple structure, leh efficiency sang tak a neih thatna a nei a; Ultra-high frequency reader antenna hi plate ang maia siam antenna atanga siam a ni ber a, chubakah rod ang chi antennas leh near-field antennas te pawh a awm bawk. Ultra-high frequency RFID-ah chuan antenna hi chhiarna hlat zawng tehna atana thil pawimawh tak pakhat a ni a, radiation range leh direction chu antenna hmangin a hriat theih vek a ni.

Microstrip patch antennas hian low profile, light weight, simple processing, thil nena inmil awlsam, leh electrical performance hrang hrang an nei a. Anni hi dielectric substrate-a metal substrate nena inzawm radiation patch conductor hmanga siam an ni. Antenna-a radiation characteristics atanga thlir chuan patch conductor te hi a chi hrang hrangin an design thei a ni. Microstrip patch antenna hi a tawpah rectangle awmna circuit board a ni a, rectangle sei leh zau zawng hian frequency range a tichiang a ni.

RFID antenna a technical parameters te chu .
RFID reader antenna-a technical parameter ber berte chu frequency band, gain, standing wave, front to back ratio, beam width, leh polarization direction te an ni a RFID tag antenna-a technical parameter-ah hian frequency band, gain, polarization direction, standing wave, directional pattern, etc. te a awm ber.

1. Gain .
Gain coefficient hi parameter a ni a, antenna pakhata energy conversion leh directional characteristics te chu a kimchangin a teh a ni. Directional coefficient leh antenna efficiency atanga lo chhuak a ni. Antenna directional coefficient sum a san chuan gain coefficient a sang zawk thin.

2. Polarization lam hawi .
Polarization characteristics tih hian antenna pakhat radiation lam hawia electric field vector kalna lam hawia hunbi inthlak danglamna a kawk a ni. Polarization direction chu antenna-a electric field kalna lam a ni a, antenna-a polarization method-ah chuan linear polarization (horizontal polarization leh vertical polarization) leh circular polarization (left{{1}kut polarization leh right-kut polarization) te a tel a ni.

A tlangpuiin, low-frequency leh high-frequency close range application systems recognition distance 1M aia tlem nei te chuan a tlangpuiin coil type antennas hmangin technology awlsam leh man tlawm tak an hmang thin Dipole leh microstrip patch antennas hi ultra-high frequency long-distance application system 1m aia sang ah hman a ni.