-
ʻO nā antenna pepeiaohao a me nā antenna polarized pālua: nā noi a me nā wahi o ka hoʻohana
ʻO ka antenna pepeiaohao a me ka antenna polarized pālua ʻelua ʻano antennas i hoʻohana ʻia ma nā ʻano like ʻole ma muli o ko lākou mau ʻano kūikawā a me nā hana. Ma kēia ʻatikala, e ʻimi mākou i nā ʻano o nā antenna pepeiaohao a me nā polar pālua...E heluhelu hou aku -
Ka wehewehe ʻana a me ka loiloi hoʻokaʻawale maʻamau o nā antennas RFID
Ma waena o nā ʻenehana kamaʻilio uea ʻole, ʻo ka pilina ma waena o ka hāmeʻa transceiver uea ʻole a me ka antenna o ka ʻōnaehana RFID ka mea kūikawā loa. I loko o ka ʻohana RFID, he mea nui like nā antennas a me RFID ...E heluhelu hou aku -
He aha ke alapine (frequency) lekiō?
ʻO ka ʻenehana Radio Frequency (RF) kahi ʻenehana kamaʻilio uea ʻole, i hoʻohana nui ʻia i ka lekiō, nā kamaʻilio, radar, ka mana mamao, nā pūnaewele sensor uea ʻole a me nā ʻoihana ʻē aʻe. Hoʻokumu ʻia ke kumumanaʻo o ka ʻenehana alapine lekiō uea ʻole ma ka hoʻolaha a me ka modulation...E heluhelu hou aku -
ʻO ke kumumanaʻo o ka loaʻa ʻana o ka antenna, pehea e helu ai i ka loaʻa ʻana o ka antenna
ʻO ka loaʻa ʻana o ka antenna e pili ana i ka loaʻa ʻana o ka mana i hoʻāla ʻia o kahi antenna ma kahi kuhikuhi kikoʻī e pili ana i kahi antenna kumu kiko kūpono. Hōʻike ia i ka hiki ke hoʻāla ʻia o ka antenna ma kahi kuhikuhi kikoʻī, ʻo ia hoʻi, ka loaʻa ʻana o ka hōʻailona a i ʻole ka pono o ka hoʻokuʻu ʻana o ka ante...E heluhelu hou aku -
Nā ʻAno Hānai Antenna Microstrip: Nā ʻAno a me ke Koho ʻana
ʻO kahi antenna microstrip kahi antenna i paʻi ʻia me ka ʻano haʻahaʻa kahi i hoʻokumu ʻia ai kahi ʻāpana conductive ma kekahi ʻaoʻao o kahi substrate dielectric a kau ʻia kahi mokulele honua ma kekahi ʻaoʻao. Hoʻoili ka ʻōnaehana hānai i ka ikehu RF ma waena o ka laina hoʻoili a me ka ʻāpana radiating, s...E heluhelu hou aku -
ʻO ka Antenna Polarization: He aha ka Antenna Polarization a no ke aha he mea nui
Ua ʻike nā ʻenekinia uila e hoʻouna a loaʻa nā antennas i nā hōʻailona ma ke ʻano o nā nalu o ka ikehu electromagnetic (EM) i wehewehe ʻia e nā kaulike a Maxwell. E like me nā kumuhana he nui, hiki ke aʻo ʻia kēia mau kaulike, a me ka hoʻolaha ʻana, nā waiwai o ka electromagnetism, ma nā ʻano like ʻole ...E heluhelu hou aku -
Nā Antennas Pepeiao: Kumu Hana, Nā ʻAno a me nā Noi
ʻO ka antenna pepeiaohao he antenna puka e hoʻohana ana i kahi alakaʻi nalu lapalapa e hoʻokuʻu i ka ikehu electromagnetic i loko o ka hakahaka manuahi a i ʻole e hōʻiliʻili i ka ikehu e komo mai ana mai kahi kuhikuhi i wehewehe ʻia. ʻO kona ʻano maʻalahi, ke ʻano radiation i wānana ʻia, ke kuhikuhi kiʻekiʻe, a me ka hiki ke hana...E heluhelu hou aku -
He aha ka antenna pepeiaohao? He aha nā loina nui a me nā hoʻohana?
ʻO ka antenna pepeiaohao he antenna ʻilikai, he antenna microwave me kahi ʻāpana keʻa poepoe a ʻehā paha kahi e wehe mālie ai ke kikowaena o ke alakaʻi nalu. ʻO ia ke ʻano antenna microwave i hoʻohana nui ʻia. Hoʻoholo ʻia kona kahua radiation e ka nui o ka waha a me ka hoʻolaha ʻana...E heluhelu hou aku -
Ua ʻike anei ʻoe i ka ʻokoʻa ma waena o nā alakaʻi nalu palupalu a me nā alakaʻi nalu paʻakikī?
ʻO ke alakaʻi nalu palupalu kahi laina hoʻoili e lawelawe ana ma ke ʻano he pale ma waena o nā lako microwave a me nā mea hānai. ʻO ka paia o loko o ke alakaʻi nalu palupalu he ʻano corrugated, he palupalu loa ia a hiki ke kū i ke kūlou paʻakikī, ka hoʻolōʻihi a me ke kaomi. No laila, ʻo ia ...E heluhelu hou aku -
Nā antenna i hoʻohana pinepine ʻia | Hoʻolauna i ʻeono ʻano like ʻole o nā antenna pepeiaohao
ʻO ka antenna pepeiaohao kekahi o nā antenna i hoʻohana nui ʻia me ka hoʻonohonoho maʻalahi, ka laulā alapine ākea, ka mana mana nui a me ka loaʻa kiʻekiʻe. Hoʻohana pinepine ʻia nā antenna pepeiaohao ma ke ʻano he antenna hānai i ka astronomy lekiō nui, ka hahai ʻana i nā ukali, a me nā antenna kamaʻilio. Ma waho aʻe o s...E heluhelu hou aku -
mea hoʻololi
Ma ke ʻano he hoʻokahi o nā ʻano hānai o nā antennas waveguide, ʻo ka hoʻolālā ʻana o ka microstrip i ka waveguide he kuleana koʻikoʻi ia i ka hoʻoili ikehu. ʻO ke kumu hoʻohālike microstrip kuʻuna i ka waveguide penei. Aia kahi probe e lawe ana i kahi substrate dielectric a hānai ʻia e kahi laina microstrip i loko o...E heluhelu hou aku -
Pūʻulu Antenna Grid
I mea e hoʻololi ai i nā koi kihi antenna o ka huahana hou a kaʻana like i ka ʻōmole pepa PCB hanauna i hala, hiki ke hoʻohana ʻia ka hoʻolālā antenna ma lalo nei e hoʻokō i ka loaʻa antenna o 14dBi@77GHz a me ka hana radiation o 3dB_E/H_Beamwidth=40°. Ke hoʻohana nei iā Rogers 4830 ...E heluhelu hou aku
