Chinyorwa chino chinotsanangura dhizaini yeRF converter, pamwe chete nemabhuroko diagram, chinotsanangura dhizaini yeRF upconverter uye dhizaini yeRF downconverter. Chinotaura nezvezvikamu zvefrequency zvinoshandiswa muC-band frequency converter iyi. Dhizaini iyi inoitwa pabhodhi re microstrip uchishandisa zvikamu zveRF zvakasiyana zvakaita seRF mixers, local oscillators, MMICs, synthesizers, OCXO reference oscillators, attenuator pads, nezvimwewo.
Dhizaini yekushandura RF kumusoro
Chinoshandura mafrequency eRF zvinoreva kushandurwa kwemafrequency kubva pane chimwe chinhu kuenda kune chimwe. Mudziyo unoshandura mafrequency kubva pamutengo wakaderera kuenda kune wakakwira unozivikanwa sechinoshandura mafrequency kubva pamutengo wakaderera kuenda kune wakakwira unozivikanwa sechinoshandura mafrequency epamusoro. Sezvo chichishanda pamafrequency eredhiyo chinozivikanwa sechinoshandura mafrequency eRF up. Iyi module yekushandura maRF Up inoshandura mafrequency eIF ari pakati pe52 kusvika 88 MHz kuenda kuRF frequency inosvika 5925 kusvika 6425 GHz. Saka inozivikanwa sechinoshandura mafrequency eC-band up. Inoshandiswa sechikamu chimwe cheRF transceiver inoshandiswa muVSAT inoshandiswa pakutaurirana nesatellite.
Mufananidzo-1: Dhayagiramu yebhuroko rekushandura reRF kumusoro
Ngationei dhizaini yechikamu cheRF Up converter chine gwara nhanho nenhanho.
Danho 1: Tsvaga Mixers, Local oscillator, MMICs, synthesizer, OCXO reference oscillator, attenuator pads dzinowanikwa kazhinji.
Danho rechipiri: Ita kuverenga simba pamatanho akasiyana-siyana emutsara kunyanya pakupinda kweMMICs kuitira kuti isapfuure 1dB compression point yemudziyo.
Danho rechitatu: Gadzira uye gadzira mafirita akavakirwa paMicro strip pamatanho akasiyana-siyana kuti usefe mafrequency asingadiwe mushure mevasanganisi mudhizaini zvichienderana nechikamu chefrequency chaunoda kupfuura.
Danho rechina: Ita simulation uchishandisa microwave office kana agilent HP EEs dzine upamhi hwakakodzera hwe conductor sezvinodiwa panzvimbo dzakasiyana paPCB ye dielectric yakasarudzwa sezvinodiwa paRF carrier frequency. Usakanganwa kushandisa shielding material se enclosure panguva ye simulation. Tarisa ma S parameters.
Danho rechishanu: Gadzira PCB wobva wabatanidza zvinhu zvakatengwa wobva wabatanidza zvakafanana.
Sezvinoratidzwa mudhayagiramu yemabhuroko emufananidzo-1, mapedhi ekudzivirira akakodzera e3 dB kana 6dB anofanira kushandiswa pakati peizvi kuchengetedza nzvimbo yekumanikidzwa kwe1dB yemidziyo (MMICs neMixers).
Oscillator yemuno neSynthesizer yemafrequencies akakodzera zvinofanirwa kushandiswa zvichibva pazviri. Pakushandura 70MHz kuenda kuC band, LO ye1112.5 MHz uye Synthesizer ye4680-5375MHz frequency range inokurudzirwa. Mutemo wekusarudza mixer ndewekuti simba reLO rinofanira kunge rakakura ne10 dB kupfuura signal level yepamusoro yekupinda paP1dB. GCN iGain Control Network yakagadzirwa ichishandisa PIN diode attenuators dzinosiyana attenuation zvichibva paanalog voltage. Yeuka kushandisa Band Pass neLow pass filters kana zvichidikanwa kuti usefe mafrequencies asingadiwe uye upfuure mafrequencies anodiwa.
Dhizaini yekushandura RF Down
Mudziyo unoshandura mafrequency kubva pamutengo wakakwira kuenda pamutengo wakaderera unozivikanwa sedown converter. Sezvo uchishanda pamafrequency eredhiyo unozivikanwa seRF down converter. Ngationei dhizaini yeRF down converter chikamu chine gwara renhanho nenhanho. Iyi RF down converter module inoshandura RF frequency kubva pa3700 kusvika 4200 MHz kusvika paIF frequency kubva pa52 kusvika 88 MHz. Saka inozivikanwa seC-band down converter.
Mufananidzo-2: Dhayagiramu yebhuroko rekushandura RF pasi
Mufananidzo-2 unoratidza dhayagiramu yebhuroko reC band down converter uchishandisa zvikamu zveRF. Ngationei dhizaini yeRF down converter chikamu chine gwara nhanho nenhanho.
Danho 1: Michina miviri yekusanganisa RF yakasarudzwa zvichienderana neHeterodyne design iyo inoshandura frequency yeRF kubva pa4 GHz kuenda pa1GHz uye kubva pa1 GHz kuenda pa70 MHz. RF mixer inoshandiswa mukugadzira iyi iMC24M uye IF mixer iTUF-5H.
Danho rechipiri: Mafirita akakodzera akagadzirwa kuti ashandiswe pamatanho akasiyana eRF down converter. Izvi zvinosanganisira 3700 kusvika 4200 MHz BPF, 1042.5 +/- 18 MHz BPF uye 52 kusvika 88 MHz LPF.
Danho rechitatu: Ma MMIC amplifier ICs nema attenuation pads zvinoshandiswa panzvimbo dzakakodzera sezvakaratidzwa mu block diagram kuti zvisvike padanho remagetsi pakubuda nekupinda kwemidziyo. Izvi zvinosarudzwa zvichienderana ne gain uye 1 dB compression point requirement yeRF down converter.
Danho rechina: RF synthesizer neLO zvinoshandiswa mukugadzira up converter zvinoshandiswawo mukugadzira down converter sezvakaratidzwa.
Danho rechishanu: RF isolators dzinoshandiswa panzvimbo dzakakodzera kuti RF signal ipfuure nedivi rimwe (kureva kumberi) uye kumisa RF reflection yayo nedivi rekumashure. Saka inozivikanwa se uni-directional device. GCN inomirira Gain control network. GCN inoshanda se variable attenuation device inobvumira kuiswa kweRF output sezvinodiwa neRF link budget.
Mhedziso: Kufanana nepfungwa dzakataurwa mudhizaini iyi yeRF frequency converter, munhu anogona kugadzira mafrequency converters pane mamwe mafrequency akadai seL band, Ku band uye mmwave band.
Nguva yekutumira: Zvita-07-2023
