Mawonekedwe:
- Otsika Kutembenuka Kutayika
- Kudzipatula Kwambiri
1. Perekani chidziwitso cha gawo ndi matalikidwe: Chifukwa chophatikizira njira za I ndi Q, chosakaniza cha radio frequency IQ chingapereke chidziwitso cha gawo ndi matalikidwe a chizindikirocho. Izi ndizofunikira pamakina ambiri olankhulirana opanda zingwe komanso njira zosinthira ndikusintha.
2. Zindikirani kachitidwe ka siginecha ya orthogonal: Njira za I ndi Q za osakaniza a RF amatha kukonza ma sign a orthogonal, ndiko kuti, ma sign omwe ali ndi gawo losiyana la madigiri 90. Izi zimapangitsa chosakanizira cha ma radio frequency kukhala chothandiza kwambiri panjira zambiri zosinthira ndikusintha, monga orthogonal frequency division multiple access (OFDM) ndi quadrature amplitude modulation (QAM).
3. Kuchepetsa kusokoneza kumvetsera: Wosakaniza wa IQ amatha kulekanitsa chizindikiro ndi kusokoneza spectrum chifukwa chophatikizapo njira ziwiri zowonjezera. Izi zimapangitsa kuti ikhale yokhoza kuthana ndi kusokoneza kwa anthu omwe amamvetsera.
4. Kusinthasintha kwakukulu: Chifukwa chogwiritsa ntchito njira ziwiri, osakaniza a IQ nthawi zambiri amakhala ndi mphamvu zambiri zomwe zingathe kukumana ndi zovuta zogwiritsira ntchito zizindikiro.
1.Njira zoyankhulirana zopanda zingwe: Millimeter wave mixer imagwiritsidwa ntchito kwambiri mu machitidwe oyankhulana opanda zingwe, kuphatikizapo machitidwe oyankhulana ndi mafoni, machitidwe oyankhulana a satana ndi maulendo a m'deralo opanda zingwe. Amagwiritsidwa ntchito kutsitsa chikwangwani cholandilidwa, kusinthira chikwangwani chotumizidwa, ndikuzindikira kutsitsa, kusinthika ndikusintha pafupipafupi kwa sigino.
2.Modemu:IQ mixers ndi zigawo zikuluzikulu zomwe zimapezeka mu modemu zomwe zimagwiritsidwa ntchito kusakaniza ma sign a baseband mumtundu wa RF kuti atumizidwe, kapena kusakaniza ma siginecha a RF olandilidwa kukhala baseband kuti atchulidwe.
3.Kutumiza kwachangu kwa data: Chifukwa chakuti osakaniza a IQ amatha kugwiritsira ntchito zizindikiro za orthogonal, ali ndi ntchito zofunika kwambiri potumiza deta yothamanga kwambiri. Mwachitsanzo, m'machitidwe oyankhulana owoneka bwino komanso mauthenga othamanga kwambiri a digito, kusintha kwa QAM ndi kuchotseratu pogwiritsa ntchito makina osakaniza a IQ kungathandize kutumiza deta yothamanga kwambiri komanso yothamanga kwambiri.
4.Kusanthula kusokoneza kwa Carrier: Osakaniza a IQ angagwiritsidwe ntchito pofufuza zosokoneza zonyamula katundu, zomwe zingathandize kudziwa gwero la kusokoneza ndi kuthetsa kusokoneza mwa kuyeza ndi kusanthula chidziwitso cha gawo ndi matalikidwe a chizindikiro.
QualwaveInc. imapereka ma IQ-mixers amagwira ntchito kuchokera ku 1.75 mpaka 26GHz.
Gawo Nambala | RF pafupipafupi(GHz, Min.) | RF pafupipafupi(GHz, Max.) | LO pafupipafupi(GHz, Min.) | LO pafupipafupi(GHz, Max.) | LO Input Power(dBm) | IF pafupipafupi(GHz, Min.) | IF pafupipafupi(GHz, Max.) | Kusintha Kutayika(dB Max.) | LO & RF Kudzipatula(dB) | LO & IF Kudzipatula(dB) | RF & IF Kudzipatula(dB) | Cholumikizira | Nthawi Yotsogolera (Masabata) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
QIM-1750-5000 | 1.75 | 5 | 1.75 | 5 | 17 | DC | 2 | 10 | 38 | 40 | 30 | SMA mkazi | 2~4 |
QIM-6000-10000 | 6 | 10 | 6 | 10 | 15 | DC | 3.5 | 9 | 40 | 25 | 35 | SMA mkazi | 2~4 |
QIM-6000-26000 | 6 | 26 | 6 | 26 | 18 | DC | 6 | 12 | 35 | 30 | 30 | SMA mkazi | 2~4 |