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Ngā Kaiwhakaranu IQ RF Ngaruiti Ngaru Mirimita Auautanga Teitei Reo Irirangi
He momo whakaranu motuhake ngā Ranu Ngaruiti, kei roto i ēnei ara tohu ā-wāhanga e rua e kīia ana ko "In-phase" (I) me "Quadrature" (Q). Ko ōna āhuatanga penei:
1. Whakarato mōhiohio ā-wāhanga me te kaha: Nā te whakaurunga o ngā hongere I me Q, ka taea e te mīhini whakaranu IQ auau reo irirangi te whakarato mōhiohio ā-wāhanga me te kaha o te tohu. He mea nui tēnei mō te maha o ngā pūnaha whakawhitiwhiti ahokore me ngā tukanga whakarerekētanga me te tango i ngā oro.
2. Whakatutuki i te tukatuka tohu orthogonal: Ka taea e ngā hongere I me Q o ngā mīhini whakaranu RF te tukatuka i ngā tohu orthogonal, arā, ngā tohu he rerekētanga ā-wāhanga o te 90 nekehanga. Nā tēnei ka tino whai hua te mīhini whakaranu auau reo irirangi i roto i ngā tikanga whakarerekētanga me te tango i ngā tohu, pērā i te urunga maha wehewehe auau orthogonal (OFDM) me te whakarerekētanga amplitude quadrature (QAM).
3. Te whakaiti i te pokanoa whakarongo: Ka taea e te mīhini whakaranu IQ te wehewehe i te whānuitanga tohu me te pokanoa nā te whakaurunga o ngā ara wāhanga e rua. Mā tēnei ka kaha ake te ārai i te pokanoa whakarongo puku.
4. Te whānuitanga hihiri teitei: Nā te whakamahinga o ngā hongere e rua, he nui te whānuitanga hihiri o ngā mīhini whakaranu IQ ka taea te whakatutuki i ngā tono tukatuka tohu uaua.
Ko te whakaranu IQ e whakamahia whānuitia ana i roto i ēnei āhuatanga e whai ake nei:
1. Ngā pūnaha whakawhitiwhiti ahokore: He whānuitia te whakamahinga o te whakaranu ngaru mirimita i roto i ngā pūnaha whakawhitiwhiti ahokore, tae atu ki ngā pūnaha whakawhitiwhiti pūkoro, ngā pūnaha whakawhitiwhiti amiorangi me ngā whatunga rohe ahokore. Ka whakamahia hei whakakore i te tohu i whiwhihia, hei whakarerekē i te tohu i tukuna, me te whakatutuki i te whakakore, te whakarerekē me te hurihanga auau o te tohu.
2. Pouwhanga: Ko ngā whakaranu IQ he wāhanga matua e kitea nuitia ana i roto i ngā pouwhanga e whakamahia ana hei whakaranu i ngā tohu turanga ki te awhe RF mō te tuku, hei whakaranu rānei i ngā tohu RF kua riro mai ki roto i te turanga mō te tango i ngā tohu.
3. Te tuku raraunga tere-teitei: Nā te mea ka taea e ngā mīhini whakaranu IQ te whakahaere i ngā tohu orthogonal, he mea nui ā rātou tono ki te tuku raraunga tere-teitei. Hei tauira, i roto i ngā pūnaha whakawhitiwhiti kōrero whatu me ngā whakawhitiwhiti kōrero matihiko tere-teitei, ka taea e te whakarerekētanga QAM me te tango raraunga mā te whakamahi i ngā mīhini whakaranu IQ te whakahohe i te tuku raraunga tere-teitei me te kaha-teitei.
4. Tātaritanga pokanoa kawe: Ka taea te whakamahi i ngā whakaranu IQ mō te tātaritanga pokanoa kawe, ka taea te āwhina ki te whakatau i te pūtake o te pokanoa me te whakakore i te pokanoa mā te ine me te tātari i ngā mōhiohio ā-wāhanga me te kaha o te tohu.
QualwaveE whakarato ana a Inc. i ngā mīhini whakaranu IQ e mahi ana mai i te 1.75 ki te 26GHz.
Tau Wāhanga | Auautanga RF(GHz, Min.)  | Auautanga RF(GHz, Teitei) | Auautanga LO(GHz, Min.) | Auautanga LO(GHz, Teitei) | Mana Whakauru LO(dBm) | Auautanga IF(GHz, Min.) | Auautanga IF(GHz, Teitei) | Ngaronga o te Tahuritanga(dB Teitei) | Wehenga LO me te RF(dB) | Te Wehenga LO & IF(dB) | Wehenga RF me te IF(dB) | Hononga | Te Wā Arataki (Wiki) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| QIM-1750-5000 | 1.75 | 5 | 1.75 | 5 | 17 | DC | 2 | 10 | 38 | 40 | 30 | Wahine SMA | 2~4 |
| QIM-6000-10000 | 6 | 10 | 6 | 10 | 15 | DC | 3.5 | 9 | 40 | 25 | 35 | Wahine SMA | 2~4 |
| QIM-6000-26000 | 6 | 26 | 6 | 26 | 18 | DC | 6 | 12 | 35 | 30 | 30 | Wahine SMA | 2~4 |
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