ʻO ka wehewehe ʻana a me ka hoʻokaʻawale ʻana o nā antenna RFID

Ma ka hana ʻana i nā hoʻololi kūpono i ka ʻōnaehana kūloko o ka antenna, hiki ke hoʻololi ʻia ke kuhikuhi ʻana o ka antenna, a laila e hana ai i nā ʻano antennas me nā ʻano like ʻole.

Loaʻa ka antenna RFID

ʻO ka loaʻa ʻana o ka Antenna e wehewehe nui i ke ʻano o ka antenna e hoʻomālamalama i ka mana komo ma kahi ʻano koʻikoʻi.Mai ka hiʻohiʻona o ke kumu, ʻoi aku ka liʻiliʻi o ka lobe nui, ʻoi aku ka liʻiliʻi o ka lobe ʻaoʻao, a ʻoi aku ka kiʻekiʻe o ka loaʻa.I ka ʻenekinia, hoʻohana ʻia ka loaʻa antenna e ana i ka hiki o kahi antenna e hoʻouna a loaʻa i nā hōʻailona ma kahi kuhikuhi.Hiki i ka hoʻonui ʻana i ka loaʻa ke hoʻonui i ka uhi ʻana o ka pūnaewele ma kekahi ʻaoʻao, a i ʻole e hoʻonui i ka palena o ka loaʻa i loko o kahi ākea.Ma lalo o nā kūlana like, ʻoi aku ka kiʻekiʻe o ka loaʻa, ʻoi aku ka lōʻihi o ka hawewe radio.

Hoʻokaʻawale i nā antenna RFID

Antenna Dipole: Ua kapa ʻia hoʻi he antenna dipole symmetrical, aia i ʻelua mau kaula pololei o ka mānoanoa like a me ka lōʻihi i hoʻonohonoho ʻia i kahi laina pololei.Hāʻawi ʻia ka hōʻailona mai nā ʻaoʻao ʻelua ma ka waena, a e hoʻopuka ʻia kekahi mahele o kēia manawa ma nā lima ʻelua o ka dipole.E hoʻohauʻoli kēia māhele i kēia manawa i kahi kahua electromagnetic i ka lewa a puni ka antenna.

Coil Antenna: ʻO ia kekahi o nā antenna i hoʻohana nui ʻia i nā ʻōnaehana RFID.Hana ʻia lākou me nā uea i ʻeha ʻia i loko o nā hale pōʻai a i ʻole ʻāpana ʻāpana e hiki ai iā lākou ke loaʻa a hoʻouna i nā hōʻailona electromagnetic.

Inductively coupled RF antenna: Inductively coupled RF antenna e hoʻohana mau ʻia no ke kamaʻilio ʻana ma waena o nā mea heluhelu RFID a me nā hōʻailona RFID.Hoʻopaʻa lāua ma o ke kahua magnetic kaʻana like.ʻO kēia mau antenna ka mea maʻamau i ke ʻano spiral e hana i kahi kahua magnetic ma waena o ka mea heluhelu RFID a me ka tag RFID.

ʻO Microstrip patch antenna: ʻO ia ka mea maʻamau he ʻāpana lahilahi o ka ʻāpana metala i hoʻopili ʻia i ka mokulele honua.ʻO ka microstrip patch antenna he māmā i ke kaumaha, liʻiliʻi ka nui, a lahilahi ma ka ʻāpana.Hiki ke hana ʻia ka mea hānai a me ka pūnaewele pili i ka manawa like me ka antenna, a pili pono i ka ʻōnaehana kamaʻilio.Hoʻohui pū ʻia nā kaapuni i paʻi ʻia, a hiki ke hana ʻia nā ʻāpana me ka hoʻohana ʻana i nā kaʻina photolithography, he haʻahaʻa haʻahaʻa a maʻalahi hoʻi e hana nui.

ʻO Yagi antenna: he antenna kuhikuhi i loaʻa i ʻelua a ʻoi aku ka hapa hawewe dipoles.Hoʻohana pinepine ʻia lākou no ka hoʻoikaika ʻana i ka ikaika hōʻailona a i ʻole ke alakaʻi ʻana i nā kamaʻilio kelepona kuhikuhi.

Antenna-backed antenna: He antenna kahi i waiho ʻia ai ka antenna a me ka mea hānai i loko o ka lua hope.Hoʻohana pinepine ʻia lākou i nā ʻōnaehana RFID kiʻekiʻe a hiki ke hāʻawi i ka maikaʻi hōʻailona maikaʻi a me ke kūpaʻa.

ʻO Microstrip linear antenna: He antenna liʻiliʻi a lahilahi, hoʻohana pinepine ʻia i nā mea liʻiliʻi e like me nā polokalamu kelepona a me nā hōʻailona RFID.Kūkulu ʻia lākou mai nā laina microstrip e hāʻawi i ka hana maikaʻi ma kahi liʻiliʻi liʻiliʻi.

Antenna Spiral: He antenna hiki ke loaʻa a me ka hoʻouna ʻana i nā nalu electromagnetic circularly polarized.Hana ʻia lākou me ka uwea metala a i ʻole ka lau a loaʻa i hoʻokahi a ʻoi aʻe paha nā ʻano ʻano spiral.

Nui nā ʻano antenna no ka hoʻohana ʻana i nā kūlana like ʻole e like me nā alapine like ʻole, nā kumu like ʻole, nā manawa like ʻole, a me nā koi like ʻole.Loaʻa i kēlā me kēia ʻano antenna kona mau hiʻohiʻona kūʻokoʻa a me nā hiʻohiʻona kūpono.Ke koho ʻana i kahi antenna RFID kūpono, pono ʻoe e koho e pili ana i nā koi noi maoli a me nā kūlana kūlohelohe.