Rudzi rutsva rwe terahertz multiplexer rwakawedzera kugona kwedata zvakapetwa kaviri uye rwakawedzera zvakanyanya kutaurirana kwe6G nebandwidth isati yamboonekwa uye kurasikirwa kwedata kwakaderera.
Vatsvagurudzi vakaunza super-wide band terahertz multiplexer inowedzera kugona kwedata kaviri uye inounza kufambira mberi kukuru ku6G uye kupfuura. (Mufananidzo unobva: Getty Images)
Kutaurirana kwenharembozha kwechizvarwa chinotevera, kunomiririrwa netekinoroji yeterahertz, kunovimbisa kuchinja mafambiro edata.
Masisitimu aya anoshanda pama terahertz frequency, achipa bandwidth isina muganho yekutumira data nekukurumidza zvikuru. Zvisinei, kuti zvizadzise mukana uyu zvizere, matambudziko makuru ehunyanzvi anofanirwa kukundwa, kunyanya mukugadzirisa nekushandisa zvinobudirira spectrum iripo.
Kufambira mberi kukuru kwakagadzirisa dambudziko iri: yekutanga ultra-wideband integrated terahertz polarization (de)multiplexer yakawanikwa papuratifomu yesilicon isina substrate.
Dhizaini iyi itsva yakanangana ne sub-terahertz J band (220-330 GHz) uye ine chinangwa chekushandura kutaurirana kwe6G nekuwedzera. Mudziyo uyu unowedzera kaviri kugona kwedata uku uchichengetedza mukana wekurasika kwedata wakaderera, zvichigadzira nzira yema network e wireless anoshanda zvakanaka uye akavimbika.
Chikwata chiri shure kwechiitiko ichi chinosanganisira Purofesa Withawat Withayachumnankul wekuYunivhesiti yeAdelaide's School of Electrical and Mechanical Engineering, Dr. Weijie Gao, uyo ava muongorori we postdoctoral paOsaka University, naPurofesa Masayuki Fujita.
Purofesa Withayachumnankul vakati, "Muchina wekuwedzera data unonzi polarization multiplexer unobvumira kuti data streams dzakawanda dzitumirwe panguva imwe chete mukati me frequency band imwe chete, zvichiita kuti data riwedzere kaviri." Bandwidth inowanikwa nemudziyo uyu haina kumbobvira yamboonekwa pane chero frequency range, zvichireva kukwira kukuru kweinternet multiplexers.
Mapolarization multiplexers akakosha mukutaurirana kwemazuva ano sezvo achigonesa masaini akawanda kugovana frequency band imwe chete, zvichiwedzera zvakanyanya kugona kwechiteshi.
Mudziyo mutsva uyu unobudirira nekushandisa ma "conical directional couplers" uye "anisotropic effective medium cladding". Izvi zvinosimudzira "polarization birefringence", zvichikonzera "high polarization extinction ratio" (PER) uye "wide bandwidth" - hunhu hukuru hwe "terahertz communication systems" inoshanda zvakanaka.
Kusiyana nemagadzirirwo echinyakare anoshandiswa nema waveguides akaomarara uye anoenderana nefrequency, multiplexer itsva inoshandisa anisotropic cladding ine frequency shoma chete. Nzira iyi inoshandisa zvizere bandwidth yakakwana inopihwa nema couplers ane conical.
Mugumisiro wacho ibandwidth yechikamu chinosvika 40%, avhareji yePER inodarika 20 dB, uye kurasikirwa kushoma kweinenge 1 dB. Izvi zviyero zvekushanda zvinopfuura zvakanyanya zvemagadzirirwo emagetsi aripo uye ema microwave, ayo anowanzo tambura nebandwidth yakamanikana uye kurasikirwa kukuru.
Basa rechikwata chevatsvagiri haringowedzere kushanda zvakanaka kwemasisitimu eterahertz chete asiwo rinoisa hwaro hwenguva itsva mukutaurirana kusina waya. Dr. Gao vakati, "Iyi hunyanzvi chinhu chikuru chinosimudzira kugona kwekutaurirana kweterahertz." Mashandisirwo anosanganisira kuratidzwa kwevhidhiyo ine tsananguro yepamusoro, augmented reality, uye network dzenharembozha dzechizvarwa chinotevera dzakadai se6G.
Mhinduro dzechinyakare dzekugadzirisa polarization yeterahertz, dzakadai se orthogonal mode transducers (OMTs) zvichibva pa rectangular metal waveguides, dzinosangana nemiganhu yakakura. Metal waveguides inosangana nekurasikirwa kwakanyanya kwe ohmic pama frequency akakwira, uye maitiro avo ekugadzira akaomarara nekuda kwezvinodiwa zvakanyanya zve geometric.
MaOptical polarization multiplexers, kusanganisira ayo anoshandisa Mach-Zehnder interferometers kana photonic crystals, anopa kubatanidzwa kuri nani uye kurasikirwa kwakaderera asi anowanzoda kuchinjana pakati pebandwidth, compactness, uye kuoma kwekugadzira.
Ma "directional couplers" anoshandiswa zvakanyanya muma "optical systems" uye anoda "polarization birefringence" yakasimba kuti asvike pakukura kwakabatana uye PER yakakwira. Zvisinei, anogumira pa "bandwidth" shoma uye "sensitivity" kune magadzirirwo emagetsi.
Multiplexer itsva iyi inosanganisa zvakanakira macouplers ane conical directional uye effective medium cladding, zvichikunda zvipingamupinyi izvi. Anisotropic cladding inoratidza birefringence yakakura, zvichiita kuti PER ishande zvakanaka pa bandwidth yakakura. Iyi nhungamiro yekugadzira inoratidza kusiyana nenzira dzechinyakare, ichipa mhinduro inokwenenzverwa uye inoshanda yekubatanidza terahertz.
Kuongororwa kwe multiplexer kwakaratidza kushanda kwayo kwakanaka. Mudziyo uyu unoshanda zvakanaka muhuwandu hwe225-330 GHz, uchikwanisa kuwana bandwidth ye37.8% ukuwo uchichengetedza PER iri pamusoro pe20 dB. Saizi yayo diki uye inoenderana nemaitiro ekugadzira akajairika zvinoita kuti ive yakakodzera kugadzirwa kwevanhu vakawanda.
Dr. Gao vakati, "Kugadzira uku hakungobatsiri chete kushanda zvakanaka kwemasisitimu ekutaurirana eterahertz asiwo kunovhura nzira yekuti pave nemanetwork ane simba uye akavimbika enharembozha."
Mashandisirwo anogona kuitwa netekinoroji iyi anopfuura masisitimu ekutaurirana. Nekuvandudza kushandiswa kwespectrum, multiplexer inogona kusimudzira kufambira mberi muminda yakaita se radar, imaging, uye Internet of Things. "Mukati memakore gumi, tinotarisira kuti matekinoroji aya eterahertz achashandiswa zvakanyanya uye asanganisirwe mumaindasitiri akasiyana-siyana," akadaro Purofesa Withayachumnankul.
Multiplexer inogonawo kubatanidzwa zvakanaka nemidziyo yekare yekugadzira beamforming yakagadzirwa nechikwata, zvichiita kuti mashandiro ekukurukurirana epamusoro ave akabatana. Kuenderana uku kunoratidza kushanduka-shanduka uye kukura kwepuratifomu inoshanda ye dielectric waveguide inoshanda nepakati.
Zvakawanikwa nechikwata ichi zvakaburitswa mujenari reLaser & Photonic Reviews, zvichiratidza kukosha kwazvo mukusimudzira tekinoroji ye photonic terahertz. Purofesa Fujita akati, "Nekukunda zvipingamupinyi zvakakosha zvehunyanzvi, hutsva uhu hunotarisirwa kukurudzira kufarira uye basa rekutsvagisa mumunda uyu."
Vaongorori vanotarisira kuti basa ravo richakurudzira mashandisirwo matsva uye kuwedzera kuvandudzwa kwetekinoroji mumakore anotevera, zvichizoguma zvaita kuti pave nema prototypes ekutengeserana uye zvigadzirwa.
Iyi multiplexer inomiririra danho rakakosha mukuvandudza kugona kwekutaurirana kweterahertz. Inoisa mwero mutsva wezvishandiso zveterahertz zvakabatanidzwa nematanho ayo ekushanda asina kumboonekwa.
Sezvo kudiwa kwema network ekukurukurirana anomhanya uye ane simba guru kuri kuramba kuchikura, hunyanzvi hwakadaro huchaita basa rakakosha mukuumba remangwana re tekinoroji isina waya.
Nguva yekutumira: Zvita-16-2024