Ose maMultiplexers uye Power Divider zvishandiso zvinobatsira kuwedzera huwandu hwema antennas anogona kubatana kune imwe chiteshi chemuverengi. Imwe yemabhenefiti makuru kudzikisa mutengo weiyo UHF RFID application nekugovana zvinhu zvinodhura. Mune ino blog post, tinotsanangura mutsauko uye chii chinoda kutariswa kana uchisarudza chishandiso chakakodzera chekushandisa kwako.
Chii chinonzi multiplexer uye de-multiplexer?
Kuti tinzwisise kuti RFID muverengi Multiplexer chii isu tichakurumidza kutsanangura chinangwa chakazara chemultiplexers (mux) uye de-multiplexers (de-mux).
A multiplexer mudziyo unosarudza imwe yemasaini akati wandei uye woiendesa kune inobuda.
A demultiplexer chishandiso chinoendesa mberi chiratidzo chekuisa kune chimwe chezvakawanda zvinobuda.
Ose ari maviri multiplexer uye de-multiplexer anoda ma switch kuti asarudze zvinopinza uye/kana zvinobuda. Aya ma switch ane simba, uye nekudaro mux uye de-mux zvishandiso zvinoshanda.
Chii chinonzi RFID muverengi multiplexer?
Muverengi weRFID muverengi chishandiso chiri musanganiswa wemux uye de-mux. Iyo ine imwe yekupinza / yekuburitsa chiteshi uye akawanda anobuda / ekupinda madoko. Chiteshi chimwe chete chemux/de-mux chinowanzo batanidzwa kune RFID muverengi nepo akawanda madoko akatsaurirwa yekubatanidza antenna.
Iyo inoendesa mberi chiratidzo kubva kuRFID muverengi chiteshi kuenda kune akati wandei anobuda machiteshi kana kumberi masaini kubva kune akati wandei ekuisa madoko kuenda kuRFID muverengi.
Switch-in-switch inotarisira kuchinja kwechiratidzo pakati pezviteshi uye nguva yekuchinja kwayo.
Iyo RFID multiplexer inogonesa akawanda antenna yekubatanidza kune imwechete chiteshi cheRFID muverengi. Hukuru hwechiratidzo chakachinjika hahuna kukanganiswa zvakanyanya, zvisinei nehuwandu hwezviteshi mune mux/de-mux.
Nenzira iyo, 8-port RFID multiplexer, semuenzaniso, inogona kuwedzera 4-chiteshi muverengi mune makumi matatu nemaviri-chiteshi RFID muverengi.
Mamwe ma brand anodaidzawo mux yavo hub.
Chii chinonzi simba divider (simba splitter) uye musanganiswa wesimba?
A power divider (splitter) mudziyo unopatsanura simba. A 2-port power divider inopatsanura simba rekupinza kuita zvinhu zviviri. Hukuru hwesimba hwakapetwa nepakati mune zvinobuda zviteshi.
Mugoveri wesimba unonzi musanganisi wesimba kana washandiswa munhevedzano.
Heino mhedziso yekukurumidza yekusiyana pakati pemux nemagetsi divider:
| MUX | SIMBA DIVIDER |
| A mux ichange iine simba rinogara richipera pamadoko zvisinei nehuwandu hwemadoko. A 4-port, 8-port, uye 16-port mux haizove nekurasikirwa kwakasiyana pachiteshi. | Simba rinopatsanura rinogona kupatsanura simba kuita ½ kana ¼ zvichienderana nehuwandu hwezviteshi zviripo. Kudzikiswa kukuru kwemagetsi kunowanikwa muchiteshi chega chega sezvo huwandu hwezviteshi hunowedzera. |
| Mux chinhu chinoshanda. Zvinoda DC simba uye masaini ekudzora kushanda. | A power divider is a passive device. Iyo haidi chero yekuwedzera yekuwedzera kupfuura iyo RF yekuisa. |
| Haasi ese madoko mune akawanda-chiteshi mux anobatidzwa panguva imwe chete. Simba reRF rinoshandurwa pakati pezviteshi. Antenna imwe chete yakabatana inopihwa simba panguva, uye kumhanya kwekuchinja kunokurumidza zvekuti antennas haazopotsa tag kuverenga. | Ese madoko mune akawanda-chiteshi simba divider anowana simba zvakaenzana uye panguva imwe chete. |
| Kunyanya kuparadzaniswa pakati pezviteshi kunowanikwa. Izvi zvakakosha kudzivirira kuyambuka-tag kuverenga pakati peantennas. Kuzviparadzanisa nevamwe kunowanzo muhuwandu hwe35 dB kana kupfuura. | Iyo yekuzviparadzanisa yechiteshi ishoma zvishoma kana ichienzaniswa neMux. Yakajairika port yekuzviparadzanisa ndeye 20 dB kana kupfuura. Cross tag kuverenga inogona kuve dambudziko. |
| Iine kushoma kana kusakanganisa mudanda reantenna kana kudzima. | Kana iyo kupatsanura simba ikasashandiswa nenzira kwayo, minda yeRF inogona kukanzurwa, uye antenna's RF danda inogona kuchinjwa zvakanyanya. |
| Hapana hunyanzvi hweRF hunodiwa kuisa Mux. Iyo Mux ichafanirwa kudzorwa neRFID muverengi's software. | RF hunyanzvi hwakakosha kuisa magetsi anopatsanura uye kuwana mhinduro yekushanda. Iyo isina kuiswa simba divider inogona kukanganisa zvakanyanya kuita kweRF. |
| Hapana tsika antenna shanduko inogoneka | Tsika antenna shanduko inogoneka. Antenna's beam-width, beam angle, nezvimwe zvinogona kuchinjwa. |
Si Chuan Keenlion Microwave sarudzo yakakura, inovhara mafambiro kubva 0.5 kusvika 50 GHz. Iwo akagadzirirwa kubata kubva pagumi kusvika pamazana maviri ekuisa simba mu50-ohm transmission system. Cavity madhizaini anoshandiswa, uye akagadziridzwa kuti aite zvakanakisa.
Zvizhinji zvezvigadzirwa zvedu zvakagadzirirwa zvekuti zvinogona kukwidibirwa-pasi zvakaiswa kune heatsink, kana zvichidikanwa. Iwo zvakare anoratidza yakasarudzika amplitude uye chikamu chiyero, ane yakakwirira simba rekubata, yakanaka kwazvo yekuzviparadzanisa mazinga uye anouya neyakaomarara kurongedza.
Isu tinogona zvakare kugadzirisa iyo rf passive chigadzirwa zvinoenderana nezvaunoda. Unogona kupinda mucustomizationpeji kuti upe zvakatemwa zvaunoda.
Nguva yekutumira: Oct-28-2022
