Eli nqaku lichaza uyilo lwesiguquli seRF, kunye nemizobo yebhloko, ichaza uyilo lweRF upconverter kunye noyilo lweRF downconverter.Ikhankanya amacandelo amaza asetyenziswa kule C-band frequency converter.Uyilo lwenziwa kwibhodi ye-microstrip kusetyenziswa amacandelo e-RF acacileyo anje nge-RF mixers, ii-oscillator zasekhaya, ii-MMICs, ii-synthesizers, ii-oscillator zereferensi ze-OCXO, iipads zokuthomalalisa, njl.
RF phezulu uyilo lokuguqulela
Isiguquli samaza eRF sibhekisa kuguqulo lwamaza omoya ukusuka kwelinye ixabiso ukuya kwelinye.Isixhobo esiguqula i-frequency ukusuka kwixabiso eliphantsi ukuya kwixabiso eliphezulu saziwa ngokuba yi-up converter.Njengoko isebenza kumaza kanomathotholo yaziwa ngokuba yiRF up converter.Le modyuli yokuguqula iRF Up iguqulela i-IF frequency kuluhlu olumalunga nama-52 ukuya kuma-88 MHz ukuya kwi-RF frequency malunga ne-5925 ukuya kwi-6425 GHz.Yiyo loo nto yaziwa ngokuba yi-C-band up converter.Isetyenziswa njengenxalenye ye-RF transceiver efakwe kwi-VSAT esetyenziselwa usetyenziso lwesatellite.
Umzobo-1: I-RF up converter block diagram
Makhe sibone uyilo lwe-RF Up converter inxalenye kunye nesinyathelo ngesinyathelo sesikhokelo.
Inyathelo loku-1: Fumana abaxube, i-oscillator yendawo, i-MMICs, i-synthesizer, i-oscillator yereferensi ye-OCXO, i-attenuator pads efumaneka ngokubanzi.
Inyathelo lesi-2: Yenza ubalo lwenqanaba lamandla kumanqanaba ahlukeneyo oluhlu ngakumbi kwigalelo le-MMICs kangangokuba aliyi kudlula indawo yoxinzelelo ye-1dB yesixhobo.
Inyathelo lesi-3: Yila kunye nezihluzo ezifanelekileyo ezisekwe kwi-Micro strip kumanqanaba ahlukeneyo ukucoca amaza angafunekiyo emva komxube kuyilo olusekwe kweyiphi indawo yoluhlu lwamaza ofuna ukudlula.
Inyathelo lesi-4: Yenza ukulinganisa usebenzisa i-ofisi ye-microwave okanye i-agilent HP EEsof enobubanzi obufanelekileyo bomqhubi njengoko kufuneka kwiindawo ngeendawo kwi-PCB yedielectric ekhethiweyo njengoko kufunwa i-RF carrier frequency.Ungalibali ukusebenzisa izinto ezikhuselayo njengendawo ebiyelweyo ngexesha lokulinganisa.Khangela iiparamitha ze-S.
Inyathelo 5: Fumana iPCB yenziwe kwaye ithengise izinto ezithengiweyo kunye nesolder ngokufanayo.
Njengoko kubonisiwe kumzobo webhloko womzobo-1, iipads ezifanelekileyo zokuthintela nokuba yi-3 dB okanye i-6dB kufuneka zisetyenziswe phakathi ukukhathalela indawo yoxinzelelo ye-1dB yezixhobo (ii-MMICs kunye nabaxube).
I-oscillator yendawo kunye ne-Synthesizer yee-frequencies ezifanelekileyo kufuneka zisetyenziswe ngokusekelwe.Kuguqulelo lwebhendi ye-70MHz ukuya kwi-C, i-LO ye-1112.5 MHz kunye ne-Synthesizer ye-4680-5375MHz uluhlu lwamafrikhwensi luyacetyiswa.Umgaqo wesithupha wokukhetha umxube kukuba amandla e-LO kufuneka abe yi-10 dB enkulu kunelona nqanaba liphezulu lesignali yegalelo kwi-P1dB.I-GCN luThungelwano loLawulo lokuFumana eyilwe kusetyenziswa izithinteli ze-PIN diode ezahluka-hlukileyo ngokusekelwe kumbane we-analog.Khumbula ukusebenzisa iBand Pass kunye nezihluzi zokupasa okuPhantsi njengoko kwaye xa kufuneka ukucoca amaza angafunekiyo kwaye ugqithise amaza afunwayo.
uyilo lwe-RF Down converter
Isixhobo esiguqula i-frequency ukusuka kwixabiso eliphezulu ukuya kwixabiso eliphantsi saziwa njengesiguquli esisezantsi.Njengoko isebenza kumaza kanomathotholo yaziwa ngokuba yiRF down converter.Makhe sibone uyilo lwe-RF phantsi isiguquli inxalenye kunye nesinyathelo ngesinyathelo.Le modyuli ye-RF down converter iguqulela i-RF frequency kuluhlu ukusuka kwi-3700 ukuya kwi-4200 MHz ukuya kwi-IF frequency kuluhlu ukusuka kwi-52 ukuya kwi-88 MHz.Yiyo loo nto yaziwa ngokuba yi-C-band down converter.
Umzobo-2: I-RF phantsi komzobo webhloko yokuguqula
Umfanekiso-2 ubonisa umzobo webhloko ye-C band down converter usebenzisa amacandelo eRF.Makhe sibone uyilo lwe-RF phantsi isiguquli inxalenye kunye nesinyathelo ngesinyathelo.
Inyathelo 1: Izixube ezimbini zeRF zikhethwe ngokoyilo lweHeterodyne oluguqula amaza eRF ukusuka kwi-4 GHz ukuya kuluhlu lwe-1GHz kunye nokusuka kwi-1 GHz ukuya kuma-70 MHz.Umxube we-RF osetyenziswe kuyilo yi-MC24M kunye ne-IF mixer yi-TUF-5H.
Inyathelo 2: Izihluzi ezifanelekileyo ziyilelwe ukuba zisetyenziswe kumanqanaba ahlukeneyo e-RF down converter.Oku kubandakanya i-3700 ukuya kwi-4200 MHz BPF, 1042.5 +/- 18 MHz BPF kunye ne-52 ukuya kwi-88 MHz LPF.
Inyathelo 3: I-MMIC amplifier ICs kunye neepads zokuthomalalisa zisetyenziswa kwiindawo ezifanelekileyo njengoko kubonisiwe kumzobo webhloko ukuhlangabezana namanqanaba ombane kwimveliso kunye negalelo lezixhobo.Ezi zikhethwa ngokwenzuzo nganye kunye ne-1 dB ingongoma yoxinzelelo lwe-RF down converter.
Inyathelo lesi-4: I-synthesizer yeRF kunye ne-LO esetyenziswa kuyilo lwesiguquli esiphezulu zikwasetyenziswa kuyilo lwesiguquli esisezantsi njengoko kubonisiwe.
Inyathelo lesi-5: Izahluli zeRF zisetyenziswa kwiindawo ezifanelekileyo ukuvumela umqondiso weRF ukuba udlule kwicala elinye (oko kukuthi ukuya phambili) kunye nokumisa ukubonakaliswa kwayo kweRF kwicala elingasemva.Yiyo loo nto yaziwa ngokuba sisixhobo esibhekisa kwicala elinye.I-GCN imele iGain control network.I-GCN isebenza njengesixhobo sokuthomalalisa okuguquguqukayo esivumela ukusetwa kwemveliso yeRF njengoko ifunwa luhlahlo lwabiwo-mali lwekhonkco leRF.
Isiphelo: Ngokufana neengqikelelo ezikhankanyiweyo koluyilo lwe-frequency converter, umntu unokuyila abaguquli befrikhwensi kwezinye iifrikhwensi ezinje nge-L band, Ku band kunye ne-mmwave band.
Ixesha lokuposa: Dec-07-2023
