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Kizuia umeme kisichobadilika ni sehemu ya kielektroniki ambayo kazi yake ni kupunguza nguvu ya mawimbi ya masafa ya redio katika mchakato wa upitishaji, ili mawimbi yaweze kusambazwa, kusambazwa na kusindika katika saketi tofauti.
1. Mfumo wa mawasiliano: Kizuia umeme kisichopitisha mawimbi kwenye maikrowevu mara nyingi hutumika kurekebisha nguvu ya mawimbi kati ya kifaa cha mwisho na kifaa kikuu ili kuhakikisha ubora wa mawasiliano kati ya vifaa.
2. Mfumo wa usambazaji wa mtandao: Kipunguza umeme kisichobadilika cha milimita kinaweza kusaidia kurekebisha nguvu ya mawimbi ili kuendana na vyombo tofauti vya upitishaji, kama vile kebo, nyuzinyuzi za macho, n.k., ili kuhakikisha upitishaji thabiti wa taarifa kwenye mtandao.
3. Mifumo ya upimaji na ugunduzi: Vidhibiti visivyobadilika vya wimbi la mm vinaweza kutumika kurekebisha nguvu ya mawimbi katika mifumo ya majaribio na ugunduzi ili kuhakikisha usahihi na usahihi wa data ya majaribio.
4. Mifumo ya televisheni na redio: Vipunguzaji visivyobadilika vya masafa ya juu vinaweza kusaidia kurekebisha nguvu ya mawimbi na vizuizi vya kulinganisha ili kuboresha ubora na uthabiti wa mawimbi ya televisheni na redio. Kwa kifupi, kipunguzaji cha usahihi kisichobadilika ni sehemu muhimu ambayo inaweza kurekebisha na kulinganisha nguvu ya mawimbi katika mchakato wa upitishaji wa mawimbi ya masafa ya redio. Inaweza kutumika kwa upimaji wa mawimbi, ulinganishaji wa mawimbi, upunguzaji wa mawimbi, na ina matumizi mbalimbali.
Kipunguza joto kisichobadilika kina thamani isiyobadilika ya upunguzaji joto, na thamani ya kipinga joto haiwezi kurekebishwa kwa hiari. Viashiria vyake vikuu ni pamoja na thamani ya upunguzaji joto, masafa ya uendeshaji, nguvu, VSWR, usahihi wa upunguzaji joto, n.k. Viashiria hivi huamua masafa ya matumizi na utendaji wa kipunguza joto kisichobadilika.
Qualwavehutoa vidhibiti mbalimbali vya usahihi wa juu na nguvu ya juu vya koaxial visivyobadilika hufunika masafa ya DC~110GHz. Ushughulikiaji wa wastani wa nguvu ni hadi wati 10K. Vidhibiti hivi hutumika katika matumizi mengi ambapo upunguzaji wa nguvu unahitajika.

Nambari ya Sehemu | Masafa(GHz, Kiwango cha chini) | Masafa(GHz, Kiwango cha Juu) | Nguvu(W) | Upunguzaji(dB) | Usahihi(dB) | VSWR(Kiwango cha juu zaidi) | Viunganishi | Muda wa Kuongoza(wiki) |
|---|---|---|---|---|---|---|---|---|
| QFA11001 | DC | 110 | 1 | 3, 6, 10, 20 | -1.0/+2.0 | 1.6 | 1.0mm | 2~4 |
| QFA6702 | DC | 67 | 2 | 1~10, 20, 30 | -1.5/+1.5 | 1.35 | 1.85mm | 2~4 |
| QFA6705 | DC | 67 | 5 | 1~10, 20, 30 | -1.5/+2.0 | 1.4 | 1.85mm | 2~4 |
| QFA6710 | DC | 67 | 10 | 20 | -1.5/+2.0 | 1.45 | 1.85mm | 2~4 |
| QFA5002 | DC | 50 | 2 | 0~10, 12, 15, 20, 30, 40, 50 | ± 1.5 | 1.45 | 2.4mm | 1~2 |
| QFA5005 | DC | 50 | 5 | 1~10, 20, 30 | -1.0/+1.2 | 1.3 | 2.4mm | 1~2 |
| QFA5010 | DC | 50 | 10 | 1~10, 20, 30 | -1.5/+2.0 | 1.4 | 2.4mm | 1~2 |
| QFA5020 | DC | 50 | 20 | 30 | ± 1.5 | 1.45 | 2.4mm | 1~2 |
| QFA4002 | DC | 40 | 2 | 0~15, 20, 25, 30, 40, 50 | -1.0/+2.0 | 1.45 | 2.92mm, SMP, SSMP, SSMA | 1~2 |
| QFA4005 | DC | 40 | 5 | 1~10, 20, 30, 40 | -1.0/+2.0 | 1.4 | 2.92mm | 1~2 |
| QFA4010 | DC | 40 | 10 | 1~10, 20, 30, 40 | -1.2/+1.2 | 1.3 | 2.92mm | 1~2 |
| QFA4020 | DC | 40 | 20 | 3~10, 15, 20, 30, 40 | -1.0/+2.0 | 1.4 | 2.92mm | 1~2 |
| QFA4030 | DC | 40 | 30 | 10, 20, 30, 40 | -1.5/+2.0 | 1.35 | 2.92mm | 1~2 |
| QFA4050 | DC | 40 | 50 | 6, 10, 20, 30, 40, 50 | -3.0/+3.0 | 1.35 | 2.92mm | 1~2 |
| QFA40K1 | DC | 40 | 100 | 10, 20, 30, 40 | -4.0/+4.0 | 1.40 | 2.92mm | 1~2 |
| QFA2602 | DC | 26.5 | 2 | 0~90 | ± 2 | 1.4 | SMA, 3.5mm, SMP, SSMP, SSMA | 1~2 |
| QFA2605 | DC | 26.5 | 5 | 1~80 | -1.2/+1.5 | 1.35 | 3.5mm, SMA | 1~2 |
| QFA2610 | DC | 26.5 | 10 | 1~70 | -1.2/+1.8 | 1.35 | 3.5mm, SMA | 1~2 |
| QFA2620 | DC | 26.5 | 20 | 3, 6, 10, 20, 30 | 1.5/+1.5 | 1.3 | SMA | 1~2 |
| QFA2630 | DC | 26.5 | 30 | 1~10, 20, 30, 40, 50, 60 | 1.5/+1.5 | 1.35 | SMA | 1~2 |
| QFA2650 | DC | 26.5 | 50 | 1~60 | -2.0/+2.5 | 1.35 | 3.5mm, SMA | 1~2 |
| QFA26K1 | DC | 26.5 | 100 | 3~50 | -1.0/+3.5 | 1.4 | 3.5mm, SMA | 1~2 |
| QFA26K15 | DC | 26.5 | 150 | 40, 50 | -2.0/+3.0 | 1.6 | 3.5mm, SMA | 1~2 |
| QFA1802 | DC | 18 | 2 | 0~10,12,15,20,30,40,50,60 | ± 1.5 | 1.35 | SMA,N,TNC,BNC,SMP,SSMP,SSMA | 1~2 |
| QFA1805 | DC | 18 | 5 | 1~60 | ± 1.3 | 1.45 | SMA, N, BNC, TNC | 1~2 |
| QFA1810 | DC | 18 | 10 | 1~50 | ± 1.2 | 1.45 | N, SMA | 1~2 |
| QFA1820 | DC | 18 | 20 | 1~60 | ± 1.5 | 1.45 | N, SMA | 1~2 |
| QFA1825 | DC | 18 | 25 | 1~50 | ± 1.3 | 1.45 | N, SMA | 1~2 |
| QFA1830 | DC | 18 | 30 | 1~60 | ± 1.5 | 1.45 | N, SMA | 1~2 |
| QFA1850 | DC | 18 | 50 | 1~60 | ± 4.5 | 1.45 | N, SMA | 1~2 |
| QFA18K1 | DC | 18 | 100 | 3, 6~60 | ± 1.4 | 1.45 | N, SMA, 7/16 DIN (L29) | 1~2 |
| QFA18K15 | DC | 18 | 150 | 3, 6, 10~60 | +5 | 1.45 | SMA, N | 1~2 |
| QFA18K2 | DC | 18 | 200 | 3, 6, 10~60 | -1/+5 | 1.45 | N | 1~2 |
| QFA18K25 | DC | 18 | 250 | 3, 6, 10~60 | -1/+6 | 1.45 | N | 1~2 |
| QFA18K3 | DC | 18 | 300 | 3, 6, 10~60 | -1/+7 | 1.45 | N | 1~2 |
| QFA18K4 | DC | 18 | 400 | 3, 6, 10~60 | -1/+12 | 1.45 | N | 1~2 |
| QFA18K5 | DC | 18 | 500 | 3, 6, 10~60 | -1/+10 | 1.5 | N | 1~2 |
| QFA18K6 | DC | 18 | 600 | 3, 6, 10~60 | -2/+12 | 1.5 | N | 1~2 |
| QFA08K8 | DC | 8 | 800 | 50 | ± 1.5 | 1.45 | N, 7/16 DIN (L29) | 1~2 |
| QFA0602 | DC | 6 | 2 | 1~30 | ± 1 | 1.2 | SMA, RPSMA, QMA, QSMA | 1~2 |
| QFA0610 | DC | 6 | 10 | 30 | ± 0.5 | 1.2 | SMA, QSMA | 1~2 |
| QFA061K | DC | 6 | 1000 | 50 | ± 2 | 1.35 | N, 7/16 DIN (L29) | 1~2 |
| QFA061K5F | DC | 6 | 1500 | 30 | 3.5 | 1.35 | N, 7/16 DIN (L29) | 1~2 |
| QFA04K8 | DC | 4 | 800 | 40~60 | ± 3 | 1.55 | N, 7/16 DIN (L29) | 1~2 |
| QFA04K8F | DC | 4 | 800 | 40~60 | ± 3 | 1.55 | N, 7/16 DIN (L29) | 1~2 |
| QFA041K | DC | 4 | 1000 | 20~60 | ± 3 | 1.25 | N | 1~2 |
| QFA041KF | DC | 4 | 1000 | 20~60 | ± 3 | 1.25 | N | 1~2 |
| QFA031K | DC | 3 | 1000 | 40, 50 | ± 2 | 1.4 | N, 7/16 DIN (L29) | 1~2 |
| QFA031K5 | DC | 3 | 1500 | 20, 30, 40, 50 | ± 3 | 1.25 | N | 1~2 |
| QFA032K | DC | 3 | 2000 | 40, 50 | ± 2 | 1.4 | N, 7/16 DIN (L29) | 1~2 |
| QFA033K | DC | 3 | 3000 | 50 | ± 3 | 1.4 | N, 7/16 DIN (L29) | 1~2 |
| QFA022K | DC | 2 | 2000 | 20, 30, 40, 50 | ± 1 | 1.3 | N, 7/16 DIN (L29) | 1~2 |
| QFA015K | DC | 1 | 5000 | 30, 40, 50 | ± 1 | 1.45 | 7/16 DIN (L29), L36, L52 | 1~2 |
| QFA0110K | DC | 1 | 10000 | 30, 40, 50 | ± 1 | 1.4 | N, 7/16 DIN (L29), L36, L52 | 1~2 |