He mea koʻikoʻi ka ʻenehana kānana Millimeter-wave (mmWave) i ka hiki ʻana o ke kamaʻilio uea ʻole 5G maʻamau, akā naʻe ke kū nei ia i nā pilikia he nui e pili ana i nā ana kino, nā ʻae ʻana i ka hana ʻana, a me ke kūpaʻa o ka mahana.
Ma ke aupuni o ke kamaʻilio uea ʻole 5G maʻamau, e neʻe 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 spectrum mmWave e hoʻonui i ka mana bandwidth, a laila e hoʻonui i nā helu hoʻoili.
Ua ʻike maopopo ʻia ma muli o ko lākou alapine kiʻekiʻe a me ka nalowale nui o ke ala, pono nā hōʻailona mmWave i nā antennas liʻiliʻi. Hoʻohui pū ʻia kēia mau antennas e hana i nā antennas range-beam, high-gain.
ʻO kekahi o nā pilikia nui i ka hoʻolālā ʻana o ke kānana e pili ana i ka hoʻololi ʻana i nā ana o ka antenna, ʻoi aku hoʻi no nā kānana alapine kiʻekiʻe. Eia kekahi, ʻo ke ahonui hana a me ke kūpaʻa o ka mahana o nā kānana e hoʻopilikia nui i kēlā me kēia ʻano o ka hoʻolālā huahana a me ka hana ʻana.
Nā Palena Nui ma ka ʻenehana mmWave
I loko o nā ʻōnaehana antenna array kuʻuna, pono ka mamao ma waena o nā mea ma lalo o ka hapalua o ka wavelength (λ/2) e pale aku i ka hoʻopilikia ʻana. Pili like kēia loina i nā antenna beamforming 5G. No ka laʻana, he 5 mm ka mamao o kahi antenna e hana ana ma ka band 28 GHz. No laila, pono e liʻiliʻi loa nā ʻāpana i loko o ka array.
Hoʻohana pinepine nā ʻāpana Phased i hoʻohana ʻia i nā noi mmWave i kahi hoʻolālā hoʻonohonoho planar, e like me ka mea i hōʻike ʻia ma lalo nei, kahi i kau ʻia ai nā antennas (nā wahi melemele) ma nā papa kaapuni i paʻi ʻia (PCB) (nā wahi ʻōmaʻomaʻo), a hiki ke hoʻopili ʻia nā papa kaapuni (nā wahi polū) ma ke ʻano perpendicular i ka papa antenna.
Ua liʻiliʻi loa ka hakahaka ma luna o kēia mau papa kaapuni, akā ke ʻimi nei nā ʻenehana hou i nā ʻano pālahalaha ʻoi aku ka liʻiliʻi, e hōʻike ana he pono e liʻiliʻi loa nā kānana a me nā poloka kaapuni ʻē aʻe e kau pololei ʻia ma ke kua o ka PCB antenna.
Ka hopena o nā hoʻomanawanui hana ʻana ma nā kānana
Ma muli o ke koʻikoʻi o nā kānana mmWave, he kuleana koʻikoʻi ko nā ʻae ʻana i ka hana ʻana, e hoʻohuli ana i ka hana o ke kānana a me ke kumukūʻai.
No ka noiʻi hou ʻana i kēia mau mea, ua hoʻohālikelike mākou i ʻekolu mau ʻano hana hana kānana 26 GHz like ʻole:
Hōʻike ka papa ma lalo nei i nā hoʻomanawanui koʻikoʻi maʻamau i loaʻa i ka hana ʻana:
Ka hopena o ke ahonui ma nā kānana PCB Microstrip
E like me ka mea i hōʻike ʻia ma lalo nei, ua hōʻike ʻia kahi hoʻolālā kānana microstrip.
Penei ke kiʻikuhi hoʻohālike hoʻolālā:
No ke aʻo ʻana i ka hopena o ke ahonui ma kēia kānana microstrip PCB, ua koho ʻia ʻewalu mau ahonui koʻikoʻi loa, e hōʻike ana i nā ʻokoʻa koʻikoʻi.
Ka hopena o ke ahonui ma nā kānana PCB Stripline
ʻO ka hoʻolālā kānana stripline, i hōʻike ʻia ma lalo nei, he ʻano hana ʻehiku-paepae me nā papa dielectric 30 mil RO3003 ma luna a ma lalo.
ʻOi aku ka paʻakikī o ka ʻōwili ʻana, a ʻoi aku ka haʻahaʻa o ke koina huinahā ma mua o ko ka microstrip ma muli o ka nele o nā zeros kokoke i ka passband, e hopena ana i ka hana harmonic suboptimal ma nā alapine mamao.
Pēlā nō, hōʻike kahi loiloi hoʻomanawanui i ka ʻike maikaʻi aʻe i hoʻohālikelike ʻia me nā laina microstrip.
Hopena
No ke kamaʻilio uila 5G e hoʻokō i nā wikiwiki wikiwiki, he mea nui ka ʻenehana kānana mmWave e hana ana ma 20 GHz a i ʻole nā alapine kiʻekiʻe. Eia nō naʻe, ke mau nei nā pilikia e pili ana i nā ana kino, ke kūpaʻa hoʻomanawanui, a me nā paʻakikī o ka hana ʻana.
No laila, pono e noʻonoʻo pono ʻia ka hopena o nā hoʻomanawanui ma nā hoʻolālā. Ua maopopo he ʻoi aku ka paʻa o nā kānana SMT ma mua o nā kānana microstrip a me stripline, e hōʻike ana e puka mai ana nā kānana SMT surface-mount ma ke ʻano he koho nui no nā kamaʻilio mmWave e hiki mai ana.
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Ka manawa hoʻouna: Iulai-17-2024