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IQ Mixers RF Microwave Millimeter Move High Frequency Radio
Isku-darka Microwave-ka waa nooc gaar ah oo isku-darka ah oo ka kooban laba waddo oo calaamadayn ah oo is-waafajin ah oo loo yaqaan "In-phase" (I) iyo "Quadrature" (Q). Astaamihiisa waa sidan soo socota:
1. Bixi macluumaadka wejiga iyo mugga: Sababtoo ah ku darista kanaallada I iyo Q, isku-darka IQ ee soo noqnoqda raadiyaha ayaa bixin kara macluumaadka wejiga iyo mugga ee calaamadda. Tani waxay muhiim u tahay nidaamyada isgaarsiinta wireless-ka badan iyo hababka wax-ka-beddelka iyo dejinta.
2. Garwaaqso habaynta calaamadaha orthogonal: Kanaallada I iyo Q ee isku-darka RF waxay awood u leeyihiin inay farsameeyaan calaamadaha orthogonal, taas oo ah, calaamadaha leh farqiga wejiga ee 90 darajo. Tani waxay ka dhigaysaa isku-darka soo noqnoqda raadiyaha mid aad waxtar ugu leh farsamooyin badan oo wax-ka-beddelid iyo dib-u-habayn, sida qaybinta soo noqnoqoshada orthogonal frequency division multiple access (OFDM) iyo modulation amplifyation quadrature (QAM).
3. Faragelinta dhegeysiga oo yaraatay: Isku-darka IQ wuxuu awood u leeyahay inuu kala saaro calaamadaha iyo faragelinta iyadoo lagu darayo laba waddo oo is-waafaqsan. Tani waxay ka dhigaysaa mid awood badan u leh inay ka hortagto faragelinta dhegeysiga.
4. Kala duwanaansho firfircoon oo sare: Sababtoo ah isticmaalka laba kanaal, isku-darka IQ waxay caadi ahaan leeyihiin kala duwanaansho firfircoon oo sare oo dabooli karta codsiyada farsamaynta calaamadaha ee adag.
Isku-darka IQ guud ahaan waxaa loo isticmaalaa dhinacyada soo socda:
1. Nidaamyada isgaarsiinta bilaa-waayirka ah: Isku-darka hirarka milimitir-ka ayaa si weyn loogu isticmaalaa nidaamyada isgaarsiinta bilaa-waayirka ah, oo ay ku jiraan nidaamyada isgaarsiinta moobaylka, nidaamyada isgaarsiinta dayax-gacmeedka iyo shabakadaha deegaanka ee bilaa-waayirka ah. Waxaa loo isticmaalaa in lagu yareeyo calaamadda la helay, lagu beddelo calaamadda la diray, iyo in la xaqiijiyo isbeddelka, isbeddelka iyo isbeddelka soo noqnoqda ee calaamadda.
2. Modem: Isku-darka IQ waa qaybo muhiim ah oo badanaa laga helo modem-yada loo isticmaalo in lagu qaso calaamadaha baseband-ka ee ku jira heerka RF si loo gudbiyo, ama lagu qaso calaamadaha RF ee la helay baseband-ka si loo soo saaro.
3. Gudbinta xogta xawaaraha sare leh: Maadaama isku-darka IQ ay qaban karaan calaamadaha orthogonal, waxay leeyihiin codsiyo muhiim ah oo ku saabsan gudbinta xogta xawaaraha sare leh. Tusaale ahaan, nidaamyada isgaarsiinta indhaha iyo isgaarsiinta dhijitaalka ah ee xawaaraha sare leh, habaynta QAM iyo demodulation iyadoo la adeegsanayo isku-darka IQ waxay awood u siin kartaa gudbinta xogta xawaaraha sare leh iyo tan awoodda sare leh.
4. Falanqaynta faragelinta side-yaasha: Isku-darka IQ-ga waxaa loo isticmaali karaa falanqaynta faragelinta side-yaasha, taas oo gacan ka geysan karta go'aaminta isha faragelinta iyo baabi'inta faragelinta iyadoo la cabbirayo lana falanqeynayo macluumaadka wejiga iyo mugga calaamadda.
QualwaveInc. waxay bixisaa shaqada isku-darka IQ laga bilaabo 1.75 ilaa 26GHz.
Lambarka Qaybta | Soo noqnoqoshada RF(GHz, ugu yaraan)  | Soo noqnoqoshada RF(GHz, ugu badnaan.) | Soo noqnoqoshada LO(GHz, ugu yaraan) | Soo noqnoqoshada LO(GHz, ugu badnaan.) | Awoodda Gelinta LO(dBm) | IF Soo noqnoqoshada(GHz, ugu yaraan) | IF Soo noqnoqoshada(GHz, ugu badnaan.) | Lumista Beddelka(dB Ugu badnaan.) | Go'doominta LO & RF(dB) | Go'doominta LO & IF(dB) | Go'doominta RF & IF(dB) | Isku xiraha | Waqtiga Hogaaminta (Toddobaadyada) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| QIM-1750-5000 | 1.75 | 5 | 1.75 | 5 | 17 | DC | 2 | 10 | 38 | 40 | 30 | SMA dheddig | 2~4 |
| QIM-6000-10000 | 6 | 10 | 6 | 10 | 15 | DC | 3.5 | 9 | 40 | 25 | 35 | SMA dheddig | 2~4 |
| QIM-6000-26000 | 6 | 26 | 6 | 26 | 18 | DC | 6 | 12 | 35 | 30 | 30 | SMA dheddig | 2~4 |
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