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He mea koʻikoʻi ka antenna RFID e ʻike i ka hana heluhelu o ka hāmeʻa RFID.Hoʻopili pololei ka ʻokoʻa o ka antenna i ka mamao heluhelu, ka laulā, a me nā mea ʻē aʻe, a he mea nui ka antenna e pili ana i ka helu heluhelu.ʻO ka antenna o kaHeluhelu RFIDhiki ke hoʻokaʻawale nui ʻia i ka polarization linear a me ka polarization circular e like me ke ʻano o ka ikehu.

ʻO ka polarization o ka antenna e pili ana i ke kānāwai e hoʻololi ʻia ke kuhikuhi o ka vector kahua uila me ka manawa i ka kuhikuhi radiation kiʻekiʻe o ka antenna.Hoʻohana nā ʻōnaehana RFID ʻokoʻa i nā ʻano polarization antenna like ʻole.Hiki i kekahi mau noi ke hoʻohana i ka polarization linear, no ka laʻana, ma ka laina hui, paʻa maoli ke kūlana o ka leka uila, a hiki i ka antenna o ka leka uila ke hoʻohana i ka polarization linear.Akā i ka hapanui o nā manawa, no ka mea ʻaʻole ʻike ʻia ka hoʻonohonoho ʻana o ka leka uila, ʻo ka hapa nui o nā ʻōnaehana RFID e hoʻohana i nā antenna circularly polarized e hōʻemi i ka naʻau o ka ʻōnaehana RFID i ka orientation o ka tag uila.Wahi a ke ʻano trajectory, hiki ke hoʻokaʻawale ʻia ka polarization i ka polarization linear, circular polarization a me elliptical polarization, i waena o ka polarization linear a me ka polarization circular i hoʻohana nui ʻia.

RFID linearly polarized antenna

ʻO ka nalu electromagnetic i hoʻokuʻu ʻia e ka mea heluhelu antenna o ka linearly polarized antenna he linear, a ʻo kāna kahua electromagnetic he kuhikuhi ikaika, a loaʻa iā ia nā ʻano aʻe:
1) Hoʻopuka ʻia ka ikehu alapine radio mai ka antenna ma ke ʻano laina;
2) Loaʻa i ka laina laina kahi kahua electromagnetic unidirectional, ʻoi aku ka ikaika ma mua o ka antenna circularly polarized, akā ʻoi aku ka liʻiliʻi a ʻoi aku ka lōʻihi;
3) Ke hoʻohālikelike ʻia me ka antenna circularly polarized, ʻoi aku ka lōʻihi o ka heluhelu heluhelu ʻana, akā ma muli o ke kuhikuhi ikaika, ʻoi aku ka liʻiliʻi o ka laulā heluhelu;
4) Hoʻololi ʻia nā huaʻōlelo (Nā Mea ʻIke) no ke kuhikuhi ʻana i ka huakaʻi

Ke like ka RFID tag i ka antenna o ka mea heluhelu, ʻoi aku ka maikaʻi o ka heluhelu ʻana o ka antenna linearly polarized.No laila, hoʻohana ʻia ka linearly polarized antenna e heluhelu i nā hōʻailona i ʻike ʻia ke ala huakaʻi, e like me nā pallets.No ka mea ua kaupalena ʻia ka beam hawewe electromagnetic o ka antenna i kahi ākea liʻiliʻi i loko o ka nui o ka mokulele o ka antenna heluhelu, paʻa ka ikehu a hiki ke komo i nā mea me ka kiʻekiʻe kiʻekiʻe.No laila, ʻoi aku ka maikaʻi o ke komo ʻana i ka mana no nā mea me ke kiʻekiʻe kiʻekiʻe a kūpono i nā mea ʻike nui a me nā kiʻekiʻe kiʻekiʻe, ʻo ka linearly polarized antenna e hāʻawi maoli i ka laulā o ka pae heluhelu e hoʻololi i ka naʻau o ka tag a me ka lōʻihi o ka mea. -ala heluhelu mamao.No laila, pono e like ka antenna o ka mea heluhelu i ka mokulele o ka lepili i ka wā e hoʻohana ai, i mea e loaʻa ai ka hopena heluhelu maikaʻi.

RFID Circularly Polarized Antenna

ʻO ka hoʻokuʻu ʻana o ke kahua electromagnetic o ka antenna circularly polarized he helical beam, nona nā ʻano aʻe:
1) Hoʻokuʻu ʻia ka Antenna RF ikehu e kahi antenna helical circular;
2) ʻO ka circular helical beam he multi-directional electromagnetic field, a ʻoi aku ka laulā o ka pā electromagnetic, akā ʻoi aku ka liʻiliʻi o kona ikaika ma mua o ka antenna linearly polarized;
3) He ākea ka wahi heluhelu, akā ke hoʻohālikelike ʻia me ka antenna polarization linear, ʻoi aku ka haʻahaʻa o ka ʻaoʻao hoʻokahi ala a ʻoi aku ka pōkole o ka mamao heluhelu;
4) Pili i nā hōʻailona (mea ʻike) ʻaʻole maopopo ke kuhikuhi o ka huakaʻi.

Hiki ke hoʻouna aku i nā ʻaoʻao āpau i ka manawa like.I ka wā e hālāwai ai me nā pilikia, ʻo ka electromagnetic beam o ka circularly polarized antenna he ikaika ka maʻalahi a me ka hiki ke hoʻoneʻe, e hoʻonui ai i ka heluhelu ʻana o ka lepili i ke komo ʻana i ka antenna mai nā ʻaoʻao a pau, no laila, ʻae ʻia nā koi no ka hoʻopili ʻana i ka lepili a me ke kuhikuhi huakaʻi;Eia nō naʻe, ʻo ka laulā o ka pōʻai pōʻai hoʻi e lawe mai i kahi hōʻemi pili i ka ikaika o ka hawewe electromagnetic, i hiki i ka tag ke hauʻoli wale i kahi ʻāpana o ka ikehu electromagnetic ma kekahi ʻaoʻao, a ua pōkole ka mamao heluhelu.No laila, kūpono ka antenna circularly polarized no nā manawa kahi i ʻike ʻole ʻia ai ke kuhikuhi o ka huakaʻi o ka tag (mea i ʻike ʻia), e like me ka wahi paʻa ukana o ke kikowaena kikowaena.

E like me ka noi a me nā hiʻohiʻona huahana, ShenzhenPaʻa lima ʻoleHoʻohana nui nā mea rfid i ka polarization linear a me nā hoʻonā polarization circular e hoʻokō i nā pono o nā papahana like ʻole, hiki ke hoʻohana ʻia i ka waihona waihona waiwai, waiwai waiwai a me nā papahana ʻē aʻe, a ua hoʻohana nui ʻia i loko o ka logistics, ka lāʻau lapaʻau, ka mana, kālā, palekana lehulehu, ka hoʻonaʻauao, ka ʻauhau, ka lawe ʻana, ka mākaʻikaʻi, ka hale kūʻai, ka holoi lole, ka pūʻali koa a me nā ʻoihana ʻē aʻe.