Ukadaulo wosefera wa Millimeter-wave (mmWave) ndi gawo lofunikira kwambiri pothandizira kulumikizana kwa zingwe za 5G, komabe amakumana ndi zovuta zambiri malinga ndi kukula kwa thupi, kulolerana ndi kupanga, komanso kukhazikika kwa kutentha.
M'malo olumikizirana opanda zingwe a 5G, kuyang'ana kwamtsogolo kudzasinthiratu kugwiritsa ntchito ma frequency pamwamba pa 20 GHz mkati mwa mmWave sipekitiramu kuti apititse patsogolo mphamvu ya bandwidth, pamapeto pake kukulitsa kufalikira.
Ndizodziwika bwino kuti chifukwa cha ma frequency apamwamba komanso kutayika kwakukulu kwa njira, ma siginecha a mmWave amafunikira tinyanga tating'ono. Tinyanga zimenezi zimasanjidwa pamodzi n’kupanga tinyanga tating’ono tomwe timapeza bwino kwambiri.
Chimodzi mwazovuta kwambiri pakupanga zosefera ndikusintha kuti zigwirizane ndi kukula kwa tinyanga, makamaka zosefera zama frequency apamwamba. Kuphatikiza apo, kulolerana kwa kupanga ndi kukhazikika kwa kutentha kwa zosefera kumakhudza kwambiri mbali iliyonse ya kapangidwe kazinthu ndi kupanga.
Zolepheretsa Kukula mu mmWave Technology
M'makina amtundu wa tinyanga tating'onoting'ono, mpata pakati pa zinthu uyenera kukhala wosakwana theka la kutalika kwa mafunde (λ/2) kuti asasokonezedwe. Mfundo imeneyi imagwiranso ntchito pa tinyanga ta 5G. Mwachitsanzo, mlongoti womwe ukugwira ntchito mu bandi ya 28 GHz uli ndi malo otalikirana pafupifupi mamilimita 5. Chifukwa chake, zigawo zomwe zili mugululi ziyenera kukhala zazing'ono kwambiri.
Magawo apakati omwe amagwiritsidwa ntchito mu mmWave nthawi zambiri amatengera mapangidwe apulani, monga momwe tawonetsera pansipa, pomwe tinyanga (malo achikasu) zimayikidwa pama board osindikizidwa (PCBs) (malo obiriwira), ndi matabwa ozungulira (malo abuluu) amatha kulumikizidwa molunjika ku gulu la antenna.
Malo omwe ali pama board ozungulirawa ndi ochepa kale, koma matekinoloje omwe akubwera akuwunikanso mawonekedwe ophatikizika kwambiri, kutanthauza kuti zosefera ndi midadada ina yozungulira iyenera kukhala yaying'ono kwambiri kuti ikhazikitsidwe kumbuyo kwa mlongoti wa PCB.
Zotsatira za Kulekerera Kwa Kupanga Pazosefera
Poganizira kufunikira kwa zosefera za mmWave, kulolerana kwa kupanga kumagwira ntchito yofunika kwambiri, kukhudza magwiridwe antchito komanso mtengo wake.
Kuti tifufuzenso zinthu izi, tidafanizira njira zitatu zopangira zosefera za 26 GHz:
Tebulo ili likuwonetsa kulolerana koopsa komwe kumachitika popanga:
Tolerance Impact pa PCB Microstrip Filters
Monga momwe zilili pansipa, mawonekedwe a microstrip fyuluta akuwonetsedwa.
Kapangidwe ka kayeseleledwe ka curve ndi motere:
Kuti muphunzire momwe kulolerana kumakhudzira fyuluta iyi ya PCB microstrip, kulolerana kopitilira 8 kunasankhidwa, kuwulula kusiyana kwakukulu.
Tolerance Impact pa PCB Stripline Zosefera
Mapangidwe a sefa a stripline, omwe akuwonetsedwa pansipa, ndi mawonekedwe asanu ndi awiri okhala ndi 30 mil RO3003 dielectric board pamwamba ndi pansi.
Kutulutsa kumakhala kocheperako, ndipo coefficient yamakona anayi ndi yocheperapo poyerekeza ndi ya microstrip chifukwa chosowa ziro pafupi ndi bandi yopita, zomwe zimapangitsa kuti pakhale magwiridwe antchito amtundu wakutali.
Momwemonso, kusanthula kwa kulolerana kukuwonetsa kukhudzika kwabwinoko poyerekeza ndi mizere ya microstrip.
Mapeto
Kuti kulumikizana kopanda zingwe kwa 5G kukwanitse kuthamanga mwachangu, ukadaulo wosefera wa mmWave womwe ukugwira ntchito pa 20 GHz kapena ma frequency apamwamba ndikofunikira. Komabe, zovuta zimapitilirabe malinga ndi kukula kwa thupi, kukhazikika kwa kulolerana, komanso zovuta zopanga.
Choncho, zotsatira za kulolerana pamapangidwe ziyenera kuganiziridwa mosamala. Zikuwonekeratu kuti zosefera za SMT zimawonetsa kukhazikika kwakukulu kuposa zosefera za microstrip ndi stripline, kutanthauza kuti zosefera za SMT pamwamba zitha kuwonekera ngati chisankho chachikulu pazolumikizana zamtsogolo za mmWave.
Concept, renowned for its expertise in RF filter manufacturing, offers a comprehensive selection of filters tailored to meet the unique requirements of 5G solutions. As a professional Original Design Manufacturer (ODM) and Original Equipment Manufacturer (OEM), Concept provides an extensive RF filter list for reference, ensuring compatibility and optimal performance for diverse 5G applications. To explore the available options, please visit their website at www.concept-mw.com . For further inquiries or to discuss specific project needs, feel free to contact the sales team at sales@concept-mw.com.
Nthawi yotumiza: Jul-17-2024