Ichi chinyorwa chinotsanangura RF inoshandura dhizaini, pamwe chete nemadhizaini, inotsanangura RF upconverter dhizaini uye RF downconverter dhizaini.Inotaura ma frequency ezvikamu anoshandiswa mune ino C-band frequency converter.Iyo dhizaini inoitwa pane microstrip bhodhi uchishandisa discrete RF zvinhu zvakaita seRF musanganiswa, oscillator emuno, MMICs, synthesizer, OCXO reference oscillators, attenuator pads, nezvimwe.
RF kumusoro inoshandura dhizaini
RF frequency converter inoreva shanduko ye frequency kubva kune imwe kukosha kuenda kune imwe.Chishandiso chinoshandura frequency kubva pamutengo wakaderera kuenda kumutengo wepamusoro unozivikanwa seup converter.Sezvo ichishanda paredhiyo frequency inozivikanwa seRF up converter.Iyi RF Up inoshandura module inoshandura IF frequency muhuwandu hwe52 kusvika 88 MHz kuenda kuRF frequency inosvika 5925 kusvika 6425 GHz.Saka inozivikanwa seC-band up converter.Inoshandiswa sechikamu chimwe cheRF transceiver chakaiswa muVSAT inoshandiswa setiraiti yekutaurirana maapplication.
Mufananidzo-1: RF up converter block diagram
Ngationei dhizaini yeRF Up inoshandura chikamu chine nhanho nhanho gwara.
Danho 1: Tsvaga maMisanganiswa, Local oscillator, MMICs, synthesizer, OCXO referensi oscillator, attenuator pads anowanzo kuwanikwa.
Danho rechipiri: Ita iyo simba level kuverenga pamatanho akasiyana-siyana emutsara kunyanya pakuiswa kweMMICs zvekuti haipfuure 1dB yekumisikidza nzvimbo yechishandiso.
Nhanho 3: Dhizaini uye yakakodzera Micro mitsetse yakavakirwa mafirita pamatanho akasiyana-siyana kusefa zvisingadiwe frequency mushure mevasanganiswa mudhizaini zvichibva pane chikamu chefrequency yaunoda kupfuura.
Nhanho 4: Ita simulation uchishandisa microwave hofisi kana agilent HP EEsof ine yakakodzera conductor hupamhi sezvinodiwa munzvimbo dzakasiyana siyana paPCB yekusarudza dielectric sezvinodiwa kune RF mutakuri frequency.Usakanganwa kushandisa zvinhu zvekudzivirira sechivharo panguva yekufananidza.Tarisa S parameters.
Step 5: Tora iyo PCB yakagadzirwa uye solder zvakatengwa zvikamu uye solder zvakafanana.
Sezvinoratidzwa mubhuroka dhayagiramu yemufananidzo-1, attenuator pads akakodzera e3 dB kana 6dB anoda kushandiswa pakati kutarisira 1dB compression point yemidziyo (MMICs uye Mixers).
Local oscillator uye Synthesizer yemafrequency akakodzera inofanirwa kushandiswa zvichibva.Kune 70MHz kuenda kuC bhendi shanduko, LO ye1112.5 MHz uye Synthesizer ye4680-5375MHz frequency renji inokurudzirwa.Mutemo wechigunwe wekusarudza musanganisi isimba reLO rinofanira kunge riri 10 dB rakakura kupfuura iro repamusoro rekuisa chiratidzo chiratidzo paP1dB.GCN ndeye Gain Control Network yakagadzirwa uchishandisa maPIN diode attenuators ayo anosiyana attenuation zvichienderana neanalog voltage.Rangarira kushandisa Band Pass uye Low pass mafirita uye pazvinenge zvichidikanwa kusefa zvisingadiwe frequency uye kupfuudza ma frequency anodiwa.
RF Down inoshandura dhizaini
Chishandiso chinoshandura frequency kubva pamutengo wepamusoro kuenda kune yakaderera chinozivikanwa se down converter.Sezvo ichishanda paredhiyo frequency inozivikanwa seRF pasi inoshandura.Ngationei dhizaini yeRF pasi inoshandura chikamu ine nhanho nhanho gwara.Iyi RF pasi inoshandura module inoshandura RF frequency muhuwandu kubva pa3700 kusvika 4200 MHz kusvika IF frequency muhuwandu kubva pa52 kusvika 88 MHz.Saka inozivikanwa seC-band down converter.
Mufananidzo-2: RF pasi converter block diagram
Iyo nhamba-2 inoratidza block dhizaini yeC bhendi pasi converter uchishandisa RF zvikamu.Ngationei dhizaini yeRF pasi inoshandura chikamu ine nhanho nhanho gwara.
Danho 1: Maviri eRF musanganiswa akasarudzwa senge Heterodyne dhizaini inoshandura RF frequency kubva ku4 GHz kuenda ku1GHz renji uye kubva 1 GHz kusvika 70 MHz renji.Iyo RF musanganiswa inoshandiswa mukugadzira ndeye MC24M uye IF musanganiswa ndeye TUF-5H.
Danho rechipiri: Mafirita akakodzera akagadzirwa kuti ashandiswe pamatanho akasiyana eRF pasi converter.Izvi zvinosanganisira 3700 kusvika 4200 MHz BPF, 1042.5 +/- 18 MHz BPF uye 52 kusvika 88 MHz LPF.
Nhanho 3: MMIC amplifier ICs uye attenuation pads anoshandiswa panzvimbo dzakakodzera sezvakaratidzwa mudhirowa dhayagiramu kuti asangane nemazinga emagetsi pakubuda uye kuisa kwemidziyo.Aya anosarudzwa maererano nekuwana uye 1 dB compression point inodiwa yeRF pasi inoshandura.
Nhanho 4: RF synthesizer uye LO inoshandiswa muup converter dhizaini inoshandiswawo mune yepasi inoshandura dhizaini sezvakaratidzwa.
Nhanho 5: RF isolators inoshandiswa panzvimbo dzakakodzera kubvumira chiratidzo cheRF kuti chipfuure munzira imwe (kureva kumberi) uye kumisa kuratidza kwayo RF munzira yekudzokera kumashure.Saka inozivikanwa seuni-directional mudziyo.GCN inomirira Gain control network.Iyo GCN inoshanda seyakasiyana attenuation mudziyo unobvumira kusetwa kweRF kuburitsa sezvinodiwa neRF link bhajeti.
Mhedziso: Zvakafanana nemafungiro akataurwa muRF frequency converter dhizaini, munhu anogona kugadzira ma frequency converter pane mamwe ma frequency akadai seL band, Ku bhendi uye mmwave bhendi.
Nguva yekutumira: Zvita-07-2023
