Taƙaitaccen Bita na Lithium Niobate Crystal da Aikace-aikacensa - Sashe na 8: Aikace-aikacen Acoustic na LN Crystal

Taƙaitaccen Bita na Lithium Niobate Crystal da Aikace-aikacensa - Sashe na 8: Aikace-aikacen Acoustic na LN Crystal

Aiwatar da 5G na yanzu ya haɗa da rukunin sub-6G na 3 zuwa 5 GHz da igiyar igiyar igiyar milimita na 24 GHz ko sama.Haɓaka mitar sadarwa ba wai kawai yana buƙatar kaddarorin piezoelectric na kayan kristal don gamsuwa ba, amma kuma yana buƙatar wafers na sirara da ƙaramin tazara tsakanin yatsa, don haka aikin ƙirƙira na na'urori yana ƙalubalantar ƙalubale.Saboda haka, da surface Acoustic tace shirya dagaLNcrystal da lithium tantalate crystal, waɗanda aka yi amfani da su sosai a zamanin 4G da kuma baya, suna fuskantar gasar.girma acousticna'urar igiyar ruwa (BAW) da fim na bakin cikigirmasautin muryator(FBAR) a zamanin 5G.

Binciken naLNcrystal a cikin mafi girma mitar tace ya sami ci gaba cikin sauri, kuma fasahar shirye-shiryen kayan aiki da na'urori har yanzu suna nuna babban yuwuwar.A cikin 2018, Kimura et al.an shirya na'ura mai tsayin 3.5 GHz na'urar leaky sauti mai tsayi dangane da 128°YLNguntu.In 2019 Lu et al.shirya layin jinkiri ta amfani daLNFim ɗin kristal guda ɗaya tare da ƙaramar shigar da asarar 3.2dB a 2 GHz, wanda za'a iya amfani da shi don haɓaka hanyoyin sadarwar wayar hannu (eMMB) na sadarwar 5G.A cikin 2018, Yang et al.shiryaLNresonato tare da tsakiyar mita 10.8 GHzkumaasarar shigarwa 10. 8 dB;A cikin wannan shekarar, Yang et al.Hakanan an ba da rahoton 21.4 GHz da 29.9 GHz resonators dangane daLNcrystal film, wanda ya kara nuna m naLNcrystal a high mita na'urorin.Masu bincikeya yi imanin cewa zai iya biyan buƙatun ƙarancin matatun gaba-gaba a cikin Kaband (26.5 ~ 40 GHz) a cikin hanyar sadarwar 5G.A cikin 2019, Yang et al.ya ruwaito matatar C-band dangane daLNfim ɗin crystal guda ɗaya, yana aiki akan 4.5 GHz.

Saboda haka, tare da ci gabanLNcrystal gudakamar akayan fim na bakin ciki da sabbin fasahar na'urar acoustic, a matsayin daya daga cikin na'urorin sadarwar 5G a nan gaba,dagaban-karshen RF tace bisaLNcrystal yana da muhimmiyar damar aikace-aikacen.

LN Crystal-WISOPTIC

Babban darajar LN crystal da LN Pockels cell wanda WISOPTIC ya haɓaka (www.wisoptic.com)


Lokacin aikawa: Fabrairu-09-2022