ʻO ka ʻenehana kānana Millimeter-wave (mmWave) kahi mea koʻikoʻi i ka hiki ʻana i ke kamaʻilio uila 5G, akā ke alo nei i nā pilikia he nui e pili ana i nā ʻano kino, nā ʻae ʻana o ka hana ʻana, a me ke kūpaʻa wela.
Ma ke aupuni o ke kamaʻilio kelepona 5G, e neʻe ana ka manaʻo o ka wā e hiki mai ana i ka hoʻohana ʻana i nā alapine ma luna o 20 GHz i loko o ka mmWave spectrum e hoʻonui ai i ka hiki o ka bandwidth, e hoʻonui i ka nui o ka hoʻouna ʻana.
Ua ʻike ʻia ma muli o ko lākou mau alapine kiʻekiʻe a me ka nalowale o ke ala nui, pono nā hōʻailona mmWave i nā antenna liʻiliʻi. Hoʻohui pū ʻia kēia mau antenna e hana i nā antenna laiki-beam, kiʻekiʻe-gain array.
ʻO kekahi o nā pilikia nui i ka hoʻolālā kānana aia i ka hoʻololi ʻana i nā ana o ka antenna, ʻoi aku hoʻi no nā kānana kiʻekiʻe. Hoʻohui ʻia, ʻo ka ʻae ʻana o ka hana ʻana a me ka paʻa ʻana o ka mahana o nā kānana e hoʻopilikia nui i kēlā me kēia ʻano o ka hoʻolālā huahana a me ka hana ʻana.
Kaohi nui ma ka ʻenehana mmWave
I loko o nā ʻōnaehana antenna kuʻuna, ʻo ka mamao ma waena o nā mea pono e emi iho ma mua o ka hapalua o ka lōʻihi o ka nalu (λ/2) i mea e pale aku ai i ka hoʻopilikia. Pili like kēia loina i nā antenna beamforming 5G. No ka laʻana, ʻo kahi antenna e hana ana ma ka pūʻali 28 GHz he 5 mm ka lōʻihi.
Hoʻohana pinepine ʻia nā papa hana i hoʻohana ʻia i nā noi mmWave i kahi hoʻolālā hoʻolālā planar, e like me ka mea i hōʻike ʻia ma lalo nei, kahi i kau ʻia ai nā antenna (mau wahi melemele) ma nā papa kaapuni paʻi (PCB) (mau wahi ʻōmaʻomaʻo), a hiki ke hoʻopili pololei ʻia nā papa kaapuni (nā wahi uliuli) papa antenna.
ʻOi aku ka liʻiliʻi o ka hakahaka ma kēia mau papa kaapuni, akā ke ʻimi nei nā ʻenehana hou aʻe i nā hale paʻa paʻa paʻa, e hōʻike ana i nā kānana a me nā poloka kaapuni ʻē aʻe e pono e liʻiliʻi loa e kau pololei ʻia ma ke kua o ka PCB antenna.
Ka hopena o ka hoʻomanawanui ʻana i nā kānana
Hāʻawi ʻia i ke koʻikoʻi o nā kānana mmWave, hana koʻikoʻi ka hoʻomanawanui ʻana o ka hana ʻana, e hoʻohuli ana i ka hana kānana a me ke kumukūʻai.
No ka noiʻi hou ʻana i kēia mau mea, ua hoʻohālikelike mākou i ʻekolu mau ʻano hana kānana 26 GHz.
Hōʻike ka papa ma lalo nei i nā hoʻomanawanui koʻikoʻi i loaʻa i ka hana ʻana:
Ka Hoʻomanawanui i nā kānana PCB Microstrip
E like me ka mea i hōʻike ʻia ma lalo nei, hōʻike ʻia kahi hoʻolālā kānana microstrip.
ʻO ka hoʻolālā simulation curve penei:
No ke aʻo ʻana i ka hopena o ka hoʻomanawanui ma kēia kānana microstrip PCB, ua koho ʻia ʻewalu mau ʻae ʻoi loa, e hōʻike ana i nā ʻokoʻa.
Ka Hoʻomanawanui i nā kānana PCB Stripline
ʻO ka hoʻolālā kānana stripline, i hōʻike ʻia ma lalo nei, he hale ʻehiku mau pae me 30 mil RO3003 papa dielectric ma luna a me lalo.
ʻOi aku ka liʻiliʻi o ka roll-off, a ʻoi aku ka liʻiliʻi o ka coefficient rectangular i ko ka microstrip ma muli o ka loaʻa ʻole o nā zeros kokoke i ka passband, ka hopena i ka hana harmonic suboptimal ma nā alapine mamao.
Pēlā nō, ʻoi aku ka maikaʻi o ka nānā ʻana i ka hoʻomanawanui i ka hoʻohālikelike ʻana i nā laina microstrip.
Ka hopena
No ke kamaʻilio uea 5G e hoʻokō i ka wikiwiki, pono ka ʻenehana kānana mmWave e hana ana ma 20 GHz a i ʻole nā alapine kiʻekiʻe. Eia nō naʻe, hoʻomau nā paʻakikī e pili ana i ka nui o ke kino, ke kūpaʻa hoʻomanawanui, a me ka paʻakikī o ka hana ʻana.
No laila, pono e noʻonoʻo pono i ka hopena o ka hoʻomanawanui i nā hoʻolālā. Ua ʻike ʻia ka hōʻike ʻana o nā kānana SMT i ke kūpaʻa ʻoi aʻe ma mua o nā kānana microstrip a me nā kānana stripline, e hōʻike ana e puka mai ana nā kānana mauna-mauna SMT ma ke ʻano he koho nui no nā kamaʻilio mmWave e hiki mai ana.
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Ka manawa hoʻouna: Iulai-17-2024