Isandisi-lizwi esiphantsi (i-LNA), i-frequency 9K~1GHz, i-gain 30dB, i-noise figure (NF) 2dB

I-amplifier yengxolo ephantsi yinxalenye ebalulekileyo kwiinkqubo ze-RF/microwave, esetyenziswa kakhulu ukukhulisa imiqondiso ebuthathaka ngelixa inciphisa ingxolo eyongezelelweyo. Imisebenzi yayo ephambili kunye neemeko zokusetyenziswa zezi zilandelayo:

Imisebenzi Engundoqo:

1. Ukwandiswa kwesignali
Ukuphucula ubukhulu beempawu ezibuthathaka ezifunyanwa zii-antenna okanye ii-sensors ukuqinisekisa ukucutshungulwa okusebenzayo ziisekethe ezilandelayo ezifana nee-mixers kunye nee-ADCs.
2. Ukunciphisa ingxolo
Ngokwenza uyilo lube ngcono kwaye lusebenzise izixhobo ezingenangxolo iphantsi, i-self-introduce noise figure (NF) ilawulwa ngaphakathi koluhlu lwe-0.5-3dB (i-NF = 0dB efanelekileyo).

Imeko zesicelo:

1. Inkqubo yeradar
Kwi-radar yomkhosi (njenge-radar yokulawula umlilo emoyeni) kunye ne-radar yabantu abaqhelekileyo (njenge-radar ye-automotive millimeter wave), i-LNA isetyenziselwa ukukhulisa i-weak echo signal (signal-to-noise ratio SNR < 0dB) eboniswa yithagethi. Xa idlula kwikhonkco lokukhulisa kunye ne-NF < 2dB, i-radar inokubona iithagethi nge-RCS ekude okanye esezantsi (icandelo elinqamlezileyo le-radar).
2. Inkqubo yonxibelelwano engenazingcingo
I-amplifier yengxolo ephantsi yeyona nto iphambili kwizikhululo zesiseko ze-5G/6G, unxibelelwano lwesathelayithi, kunye neekhonkco zokufumana ii-terminal eziphathwayo. Inoxanduva lokukhulisa ingxolo ephantsi (NF < 1.5dB) yezibonakaliso ze-RF ezibuthathaka (eziphantsi njenge--120dBm) ezibanjwe yi-antenna ngaphambi kokususwa kwesignali, nto leyo ephucula kakhulu uvakalelo lokufumana inkqubo. Umzekelo, kwi-millimeter wave frequency band (24 - 100GHz), i-LNA inokubuyisela ukulahleka kwendlela ukuya kuthi ga kwi-20dB, iqinisekisa uzinzo lokudluliselwa kwedatha ngesantya esiphezulu.
3. Isixhobo sokuvavanya ngokuchanekileyo okuphezulu
Kwizixhobo ezifana nee-spectrum analyzers kunye nee-vector network analyzers (VNA), i-LNA imisela ngokuthe ngqo ukusebenza kwengxolo yesixhobo kunye nobubanzi obuguqukayo. I-LNA inokuphucula uvakalelo lwesixhobo ngokwandisa isignali elinganisiweyo yenqanaba le-nV ukuya kuluhlu olusebenzayo lwe-quantization lwe-ADC (njenge-1Vpp). Okwangoku, i-ultra-low noise coefficient (NF <3dB) inokunciphisa ngempumelelo ukungaqiniseki komlinganiselo kwaye inciphise iimpazamo zomlinganiselo.
4. Yandisa iindawo zokufaka isicelo
I-astronomy yerediyo: I-telescope ye-FAST ixhomekeke kwi-LNA epholileyo ye-helium engamanzi (NF ≈ 0.1dB) ukuze ibambe imigca ye-spectral engama-21cm kwindalo iphela.
Ikhompyutha yeQuantum: Ukwandisa imiqondiso yenqanaba le-μV (4 - 8GHz) yee-qubits eziqhuba ngamandla kufuna ukusebenza kwengxolo ekufutshane nomda we-quantum.
Imifanekiso yezonyango: Izixhobo ze-MRI ziphucula imiqondiso ye-μV ye-nuclear magnetic resonance nge-LNA engeyiyo i-magnetic, kunye nokuphuculwa komlinganiselo wesignali-kwingxolo ongaphezulu kwe-10dB.

I-Qualwave Inc. ibonelela ngee-amplifiers ezinengxolo ephantsi ukusuka kwi-9kHz ukuya kwi-260GHz, kunye nenani lengxolo eliphantsi njenge-0.8dB.
Imodeli ye-QLA-9K-1000-30-20, eyenzelwe ngokukodwa uphando lwesayensi kunye nokusetyenziswa konxibelelwano, ifikelela kwibhalansi yokusebenza egqwesileyo yokufumana i-30dB kunye nenani lengxolo ye-2dB kwibhendi yefrikhwensi ye-9kHz ~ 1GHz.