Eli nqaku lichaza uyilo lwe-RF converter, kunye needayagram zebhloko, lichaza uyilo lwe-RF upconverter kunye noyilo lwe-RF downconverter. Likhankanya iinxalenye ze-frequency ezisetyenziswa kule C-band frequency converter. Uyilo lwenziwa kwibhodi ye-microstrip kusetyenziswa iinxalenye ze-RF ezihlukeneyo ezifana nee-RF mixers, ii-local oscillators, ii-MMICs, ii-synthesizers, ii-OCXO reference oscillators, ii-attenuator pads, njl.njl.
Uyilo lwesiguquli se-RF up
I-RF frequency converter ibhekisa ekuguquleni i-frequency ukusuka kwelinye ixabiso ukuya kwelinye. Isixhobo esiguqula i-frequency ukusuka kwixabiso eliphantsi ukuya kwixabiso eliphezulu saziwa ngokuba yi-up converter. Njengoko isebenza kwi-radio frequency, yaziwa ngokuba yi-RF up converter. Le RF Up converter module iguqulela i-IF frequency kuluhlu oluphakathi kwe-52 ukuya kwi-88 MHz ukuya kwi-RF frequency emalunga ne-5925 ukuya kwi-6425 GHz. Yiyo loo nto yaziwa ngokuba yi-C-band up converter. Isetyenziswa njengenye ye-RF transceiver esetyenziswa kwi-VSAT esetyenziselwa unxibelelwano lwesathelayithi.
Umfanekiso-1: Umzobo webhloko yokuguqula i-RF up
Makhe sibone uyilo lwenxalenye ye-RF Up converter kunye nesikhokelo senyathelo ngenyathelo.
Inyathelo 1: Fumanisa iiMixers, iLocal oscillator, iiMMICs, isynthesizer, iOCXO reference oscillator, ii-attenuator pads ezifumaneka ngokubanzi.
Inyathelo lesi-2: Yenza ubalo lwamandla kwizigaba ezahlukeneyo zoluhlu ingakumbi xa kufakwa iiMMIC ukuze zingadluli kwi-1dB yenqaku lokucinezelwa kwesixhobo.
Inyathelo lesi-3: Yila kwaye ulungise izihluzi ezisekelwe kwi-Micro strip kumanqanaba ahlukeneyo ukuze ucofe amaza angafunekiyo emva kwabaxubi kuyilo ngokusekelwe kwinxalenye yoluhlu lwezandi ofuna ukudlula kuzo.
Inyathelo lesi-4: Yenza ukulinganisa usebenzisa i-microwave office okanye i-agent HP EEs enobubanzi obufanelekileyo bomqhubi njengoko kufuneka kwiindawo ezahlukeneyo kwi-PCB ukuze ufumane i-dielectric ekhethiweyo njengoko kufuneka kwi-RF carrier frequency. Ungalibali ukusebenzisa izinto zokukhusela njenge-enclosure ngexesha lokulinganisa. Jonga iiparameter ze-S.
Inyathelo lesi-5: Fumana i-PCB eyenziwe kwaye idibanise izinto ezithengiweyo kwaye udibanise okufanayo.
Njengoko kubonisiwe kumzobo webhloko womfanekiso-1, ii-attenuator pads ezifanelekileyo ze-3 dB okanye i-6dB kufuneka zisetyenziswe phakathi kwazo ukunyamekela indawo yokucinezelwa kwe-1dB yezixhobo (iiMMIC kunye neeMixers).
I-oscillator yendawo kunye neSynthesizer yeefrikhwensi ezifanelekileyo kufuneka zisetyenziswe ngokusekelwe. Ukuguqulwa kwebhendi ye-70MHz ukuya kwi-C, i-LO ye-1112.5 MHz kunye neSynthesizer ye-4680-5375MHz iyacetyiswa. Umgaqo ophambili wokukhetha i-mixer kukuba amandla e-LO kufuneka abe yi-10 dB enkulu kunenqanaba eliphezulu lesignali yokufaka kwi-P1dB. I-GCN yiGain Control Network eyilwe kusetyenziswa ii-PIN diode attenuators ezitshintsha i-attenuation ngokusekelwe kwi-analog voltage. Khumbula ukusebenzisa ii-Band Pass kunye nee-Low pass filters xa kufuneka ukucoca iifrikhwensi ezingafunekiyo kunye nokudlulisa iifrikhwensi ezifunekayo.
Uyilo lokuguqula i-RF Down
Isixhobo esiguqula i-frequency ukusuka kwixabiso eliphezulu ukuya kwixabiso eliphantsi saziwa ngokuba yi-down converter. Njengoko sisebenza kwi-radio frequency saziwa ngokuba yi-RF down converter. Makhe sibone uyilo lwe-RF down converter inxalenye enesikhokelo senyathelo ngenyathelo. Le module ye-RF down converter iguqulela i-RF frequency ukusuka kwi-3700 ukuya kwi-4200 MHz ukuya kwi-IF frequency ukusuka kwi-52 ukuya kwi-88 MHz. Kungoko ke saziwa ngokuba yi-C-band down converter.
Umfanekiso-2: Umzobo webhloko yokuguqula i-RF phantsi
Umfanekiso-2 ubonisa umzobo webhloko yesixhobo sokuguqula ibhendi ye-C sisebenzisa izixhobo ze-RF. Makhe sibone uyilo lwenxalenye yesixhobo sokuguqula i-RF down kunye nesikhokelo senyathelo ngenyathelo.
Inyathelo 1: Kukhethwe ii-RF mixers ezimbini ngokoyilo lweHeterodyne oluguqula i-RF frequency ukusuka kwi-4 GHz ukuya kwi-1GHz kunye noluhlu lwe-1 GHz ukuya kwi-70 MHz. I-RF mixer esetyenzisiweyo kuyilo yi-MC24M kwaye i-IF mixer yi-TUF-5H.
Inyathelo lesi-2: Iifilitha ezifanelekileyo zenzelwe ukusetyenziswa kwizigaba ezahlukeneyo ze-RF down converter. Ezi ziquka i-3700 ukuya kwi-4200 MHz BPF, i-1042.5 +/- 18 MHz BPF kunye ne-52 ukuya kwi-88 MHz LPF.
Inyathelo lesi-3: Ii-MMIC amplifier ICs kunye nee-attenuation pads zisetyenziswa kwiindawo ezifanelekileyo njengoko kubonisiwe kumzobo webhloko ukuhlangabezana namanqanaba ombane kwimveliso kunye nokufakwa kwezixhobo. Ezi zikhethwa ngokwemfuno ye-gain kunye ne-1 dB ye-compression point ye-RF down converter.
Inyathelo lesi-4: I-RF synthesizer kunye ne-LO ezisetyenzisiweyo kuyilo lwe-up converter nazo zisetyenziswa kuyilo lwe-down converter njengoko kubonisiwe.
Inyathelo lesi-5: Ii-RF zokwahlulahlula zisetyenziswa kwiindawo ezifanelekileyo ukuvumela isignali ye-RF ukuba idlule kwicala elinye (oko kukuthi phambili) kwaye iyeke ukubonakaliswa kwayo kwe-RF kwicala elingasemva. Yiyo loo nto yaziwa njengesixhobo esibhekisa kwicala elinye. I-GCN imele inethiwekhi yokulawula i-Gain. I-GCN isebenza njengesixhobo sokunciphisa amandla esiguquguqukayo esivumela ukuseta imveliso ye-RF njengoko kufunwa yibhajethi yekhonkco le-RF.
Isiphelo: Njengeengcamango ezikhankanyiweyo kolu yilo lwe-RF frequency converter, umntu unokuyila ii-frequency converters kwezinye ii-frequency ezifana ne-L band, i-Ku band kunye ne-mmwave band.
Ixesha lokuthumela: Disemba-07-2023
