Vipengee:
- Kukataa kwa kiwango cha juu
- Saizi ndogo
Kichujio cha chini cha RF ni kichujio cha usindikaji wa ishara ambacho huhifadhi ishara za masafa ya chini kwa kuondoa ishara za masafa ya juu. Inaruhusu ishara zilizo na masafa chini ya kizingiti fulani kupita, lakini inakataa ishara na masafa makubwa kuliko kizingiti hicho.
1. Ishara tu chini ya frequency maalum inaruhusiwa kupita, wakati ishara hapo juu kuwa frequency huchujwa au kudhoofishwa.
2. Wakati wa kupita kwa ishara za mzunguko wa chini, karibu hakuna mabadiliko katika awamu.
3. Kawaida, capacitors moja au zaidi na inductors hutumiwa kuunda vichungi vya chini vya simu.
Ishara ya 1.Smooth
Kichujio cha kupita kwa kiwango cha juu cha chini hutumiwa hasa laini ya ishara, inaweza kuondoa kelele katika ishara ya masafa ya juu, ili ishara iwe thabiti zaidi. Katika hali ambapo ishara laini inahitajika, kichujio cha kupitisha cha chini cha Microstrip kinaweza kuondoa kelele ya uingiliaji wa mzunguko wa juu, na hivyo kufanya mfumo kuwa wa kuaminika zaidi na thabiti.
2.Hakuna kupunguzwa
Kichujio cha kupita chini hakitaathiri ishara ya chini-frequency, wakati inahifadhi ishara ya chini-frequency, kelele ya frequency ya juu inaweza kuchujwa. Katika usindikaji wa sauti au usindikaji wa picha, vichungi vya chini vya kupita vinaweza kuchuja kelele na kufanya ishara ya kusindika iwe wazi.
3.Bundua kosa
Kichujio cha kupita cha chini kinaweza kupunguza kosa, haswa linalofaa kwa kipimo cha chombo cha usahihi. Katika vipimo vingine vinavyohitaji, kichujio cha chini cha kupita kinaweza kuondoa kelele, kuingiliwa na mambo mengine, ili matokeo ya kipimo ni sahihi zaidi na ya kuaminika.
4. Aina ya matumizi
Kichujio cha kupita kwa Wimbi la Millimeter kina matumizi anuwai sana, kutoka kwa sauti hadi picha, kutoka kwa mawasiliano hadi kudhibiti, karibu kila mahali. Kwa mfano, katika usindikaji wa ishara ya baseband, kichujio cha chini cha chini cha kupita ni muhimu.
Katika mawasiliano, kichujio cha chini cha kupita kinaweza kuchuja kelele za mzunguko wa juu, kuingiliwa, nk, ili kuhakikisha ubora wa mawasiliano; Kwenye uwanja wa udhibiti, kichujio cha kupitisha cha chini kinaweza kutumika kwa laini ya ishara na kuchuja kwa kelele.
QualwaveInasambaza vichungi vya chini vya microwave katika masafa ya masafa DC-50GHz. Vichungi vya kupita kwa kiwango cha chini hutumiwa sana katika programu nyingi.
Nambari ya sehemu | Passband(GHz, Min.) | Passband(GHz, Max.) | Upotezaji wa kuingiza(DB, Max.) | Vswr(Max.) | Stopband Attenuation(DB) | Viunganisho |
---|---|---|---|---|---|---|
QLF-1-40 | DC | 0.001 | 1.5 | 1.5 | 40@2-4MHz, 50@4-100MHz | Sma |
QLF-2-15-40 | 0.002 | 0.015 | 2.5 | 1.5 | 40@17-200MHz | Sma |
QLF-2.5-50 | DC | 0.0025 | 0.8 | 1.5 | 50@5-50MHz | Sma |
QLF-5-50 | DC | 0.005 | 1 | 1.5 | 50@8-50MHz | Sma |
QLF-10-50 | DC | 0.01 | 1 | 1.5 | 50@13-150MHz | Sma |
QLF-30-40 | DC | 0.03 | 1 | 1.5 | 40@45MHz, 60@60MHz | Sma |
QLF-32-40 | DC | 0.032 | 0.8 | 1.5 | 40@50-90MHz | N |
QLF-45-20 | DC | 0.045 | 1 | 1.7 | 20@0.07-0.09GHz | Sma |
QLF-55-35 | DC | 0.055 | 0.8 | 1.5 | 35@0.07-0.2GHz | Sma |
QLF-200-2400-60 | 0.2 | 2.4 | 5 | 1.5 | 60@3.6GHz | Sma |
QLF-300-40 | DC | 0.3 | 1 | 1.5 | 40@450MHz, 60@600MHz | Sma |
QLF-300-60 | DC | 0.3 | 0.5 | 1.5 | 60@0.643-3GHz | Sma |
QLF-330-60 | DC | 0.33 | 0.5 | 1.3 | 60@0.643-3GHz | Sma |
QLF-480-30 | DC | 0.48 | 3 | 1.5 | 30@0.53-3GHz | Sma |
QLF-1000-30 | DC | 1 | 0.9 | 1.2 | 30@1.9-5GHz | Sma |
QLF-1000-70 | DC | 1 | 1 | 1.5 | 70@1.3-4.2GHz | Sma |
QLF-1100-60 | DC | 1.1 | 0.9 | 1.4 | 60@1.5~3GHz | Sma |
QLF-1200-60 | DC | 1.2 | 1 | 1.5 | 60@1.8-8GHz | Sma |
QLF-1400-50 | DC | 1.4 | 2 | 1.6 | 50@2GHz max. | Sma |
QLF-2000-50 | DC | 2 | 1 | 1.5 | 50@2.3-4GHz, 40@4~7GHz | Sma |
QLF-2186-30 | 1.5 | 2.186 | 2 | 1.6 | 30@2.37-3GHz | Sma |
QLF-2200-30 | DC | 2.2 | 0.9 | 1.2 (typ.) | 30@3-5GHz | Sma |
QLF-2250-30 | DC | 2.25 | 1.2 | 1.2 (typ.) | 30@3-5GHz | Sma |
QLF-2400-58 | DC | 2.4 | 2 | 1.7 | 58@3-18GHz | Sma |
QLF-3000-30 | DC | 3 | 0.9 | 1.3 (typ.) | 30@4.78-7.5GHz | Sma |
QLF-3200-40 | DC | 3.2 | 1 | 1.5 | 40@3.8-18GHz | Sma |
QLF-3200-60 | DC | 3.2 | 1.5 | 1.5 | 60@3.6GHz, 60@3.6-20GHz | Sma |
QLF-3500-40 | DC | 3.5 | 1.5 | 1.5 | 40@3.85-18GHz | Sma |
QLF-3870-30 | DC | 3.87 | 2.5 | 1.7 | 30@4.32GHz | Sma |
QLF-4000-50 | DC | 4 | 1 | 2 | 50@4.7-8GHz | Sma |
QLF-4000-60 | DC | 4 | 1.5 | 1.3 | 60@4.5-12.3GHz | Sma |
QLF-4400-40 | DC | 4.4 | 0.73 | 1.2 | 40@6.28-9.8GHz | Sma |
QLF-5000-40 | DC | 5 | 0.68 | 1.2 | 40@7.05-10GHz | Sma |
QLF-5000-45 | DC | 5 | 1 | 2 | 45@5.8-10.5GHz | Sma |
QLF-5325-30 | DC | 5.325 | 1.5 | 1.5 | 30@5.925GHz | Sma |
QLF-5500-60 | DC | 5.5 | 3 | 2 | 60@6-20GHz | Sma |
QLF-6000-20 | 0.5 | 6 | 2 | 1.8 | 20@6.5GHz | Sma |
QLF-6000-45 | DC | 6 | 1 | 2 | 45@6.8-10.5GHz | Sma |
QLF-6000-60 | DC | 6 | 1.5 | 1.3 | 60@6.7-15.5GHz | Sma |
QLF-6500-30 | DC | 6.5 | 1 | 1.8 | 30@8-15GHz | Sma |
QLF-6500-60 | DC | 6.5 | 1.5 | 1.3 | 60@7.27-15.3GHz | Sma |
QLF-7000-48 | DC | 7 | 1 | 2 | 48@7.8-11GHz | Sma |
QLF-7000-50 | DC | 7 | 1.5 | 1.3 | 50@7.77-15.5GHz | Sma |
QLF-8000-40 | DC | 8 | 2 | 2 | 40@9-25GHz | Sma |
QLF-8000-40-1 | DC | 8 | 1.2 | 1.5 | 40@8.9-16GHz | Sma |
QLF-8000-50 | DC | 8 | 1.5 | 1.4 | 50@8.8-16.2GHz | Sma |
QLF-8000-50-1 | DC | 8 | 1 | 2 | 50@8.8-20GHz | Sma |
QLF-8000-50-2 | DC | 8 | 1.2 | 2 | 50@9-18GHz | Sma |
QLF-9000-50 | DC | 9 | 1.5 | 1.4 | 50@9.8-17GHz | Sma |
QLF-9000-50-1 | DC | 9 | 1 | 2 | 50@15-22GHz | Sma |
QLF-9000-60 | DC | 9 | 1 | 1.6 | 60@14-17GHz | Sma |
QLF-9500-50 | DC | 9.5 | 1.5 | 1.4 | 50@10.2-18GHz | Sma |
QLF-10000-20 | DC | 10 | 0.5 | 1.7 | 20@12GHz | Sma |
QLF-10000-30 | DC | 10 | 1 | 1.7 | 30@13.2GHz | Sma |
QLF-10000-30-1 | DC | 10 | 1 | 1.8 | 30@13-40GHz | Sma |
QLF-10000-35 | DC | 10 | 1 | 2 | 35@11GHz | Sma |
QLF-10000-50 | DC | 10 | 1.5 | 1.4 | 50@10.9-18.5GHz | Sma |
QLF-11000-50 | DC | 11 | 1.5 | 1.5 | 50@12.1-19GHz | Sma |
QLF-11000-50-1 | DC | 11 | 2 | 1.7 | 50@12-40GHz | Sma |
QLF-11700-50 | DC | 11.7 | 2 | 1.7 | 50@12.7-13.45GHz | Sma |
QLF-12000-70 | DC | 12 | 1 | 1.7 | 70@14-19GHz | Sma |
QLF-13000-50 | DC | 13 | 2 | 1.5 | 50@14.1-21GHz | Sma |
QLF-13000-55 | DC | 13 | 1.5 | 1.8 | 55@15.2-40GHz | Sma |
QLF-13500-50 | DC | 13.5 | 2 | 1.5 | 50@14.7-21.3GHz | Sma |
QLF-14000-45 | DC | 14 | 1 | 1.8 | 45@20-40GHz | Sma |
QLF-15000-50 | DC | 15 | 2.5 | 1.5 | 50@16-22.3GHz | Sma |
QLF-16000-50 | DC | 16 | 1.5 | 2 | 50@16.8-24GHz | Sma |
QLF-17000-50 | DC | 17 | 1.5 | 2 | 50@30-33GHz | Sma |
QLF-18000-15 | DC | 18 | 1 | 1.7 | 15@20GHz | Sma |
QLF-18000-35 | DC | 18 | 1.5 | 2 | 35@19-28GHz | Sma |
QLF-18000-40 | DC | 18 | 2 | 2 | 40@20-38GHz | 2.92mm |
QLF-18000-45 | DC | 18 | 1.2 | 2 | 45@28-40GHz | Sma |
QLF-18000-50 | DC | 18 | 3 | 1.6 | 50@19.1-26GHz | Sma |
QLF-18000-50-1 | DC | 18 | 2 | 2 | 50@18.8-19.5GHZ | Sma |
QLF-20000-25 | DC | 20 | 2 | 2 | 25@23-40GHz | Sma |
QLF-20000-50 | DC | 20 | 1.2 | 2 | 50@22GHz | Sma |
QLF-20000-60 | DC | 20 | 1 | 2 | 60@23-40GHz | 2.92mm |
QLF-20000-70 | DC | 20 | 1.5 | 1.8 | 70@24GHz | Sma |
QLF-20000-75 | DC | 20 | 1.5 | 2 | 75@24-44GHz | Sma |
QLF-25000-40 | DC | 25 | 2 | 2 | 40@28-30GHz | 2.92mm |
QLF-25000-40-1 | DC | 25 | 1.5 | 1.7 | 40@28-40GHz | 2.92mm |
QLF-25000-40-2 | DC | 25 | 2 | 2 | 40@28-40GHz, 70@30-44GHz | 2.92mm |
QLF-26000-30 | DC | 26 | 1.5 | 1.7 | 30@28GHz, 70@29 ~ 40GHz | Sma |
QLF-28000-30 | DC | 28 | 2 | 2 | 30@30-38GHz | 2.4mm |
QLF-33000-25 | DC | 33 | 3 | 2 | 25@37-50GHz | 2.92mm |
QLF-40000-20 | DC | 40 | 2 | 2 | 20@60GHz, 40@65GHz, 60@70GHz | 2.92mm |
QLF-50000-20 | DC | 50 | 2 | 2.5 | 20@60GHz | 2.4mm |