Eigenskippen:
- Hege stopbandôfwizing
- Lytse grutte
In RF-leechpassfilter is in sinjaalferwurkingsfilter dat lege frekwinsjesignalen behâldt troch hege frekwinsjesignalen te ferwiderjen. It lit sinjalen mei frekwinsjes leger as in bepaalde drompel troch, mar fersmyt sinjalen mei frekwinsjes heger as dy drompel.
1. Allinnich sinjalen ûnder in spesifike frekwinsje meie trochlitte, wylst sinjalen boppe dy frekwinsje filtere of ferswakke wurde.
2. By it trochjaan fan leechfrekwinsjesignalen is der hast gjin feroaring yn faze.
3. Gewoanlik wurde ien of mear kondensatoren en induktors brûkt om telekom leechpassfilters te bouwen.
1. Glêd sinjaal
In heechfrekwinsje leechpassfilter wurdt benammen brûkt om it sinjaal glêd te meitsjen, it kin de rûs yn it heechfrekwinsjesinjaal fuortsmite, sadat it sinjaal stabiler wurdt. Yn gefallen dêr't in glêd sinjaal nedich is, kin it mikrostrip leechpassfilter heechfrekwinsje-ynterferinsjerûs fuortsmite, wêrtroch it systeem betrouberder en stabiler wurdt.
2. Lûdsreduksje
In leechpassfilter sil gjin ynfloed hawwe op it leechfrekwinsjesinjaal, wylst it leechfrekwinsjesinjaal behâlden wurdt, kin heechfrekwinsjelûd útfiltere wurde. By audioferwurking of ôfbyldingsferwurking kinne leechpassfilters rûs útfilterje en it ferwurke sinjaal dúdliker meitsje.
3. Ferminderje de flater
In leechpassfilter kin de flater ferminderje, benammen geskikt foar presyzje-ynstrumintmjittingen. By guon easkenfolle mjittingen kin it leechpassfilter rûs, ynterferinsje en oare faktoaren fuortsmite, sadat de mjitresultaten krekter en betrouberder binne.
4. Breed oanbod fan tapassing
Millimetergolf leechpassfilter hat in tige breed skala oan tapassingen, fan audio oant ôfbylding, fan kommunikaasje oant kontrôle, hast oeral. Bygelyks, yn basisbânsignaalferwurking is in lyts leechpassfilter nedich.
Yn kommunikaasje kin in ophongen leechpassfilter hege frekwinsjelûd, ynterferinsje, ensfh. filterje om de kommunikaasjekwaliteit te garandearjen; Op it mêd fan kontrôle kin it stripline leechpassfilter brûkt wurde foar sinjaalglêdzjen en lûdsfilterjen.
Kwalwaveleveret mikrogolf leechpassfilters yn it frekwinsjeberik DC-50GHz. De golflieder leechpassfilters wurde in soad brûkt yn in protte tapassingen.
ûnderdielnûmer | Trochgongsbân(GHz, min.) | Trochgongsbân(GHz, Maks.) | Ynfoegingsferlies(dB, Maks.) | VSWR(Maks.) | Stopbandferswakking(dB) | Ferbiningen |
---|---|---|---|---|---|---|
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-125-60 | DC | 0.125 | 2 | 1.5 | 60@0.15~0.6GHz | 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-500-45 | DC | 0.5 | 1.5 | 1.8 | 45@0.6~1GHz | 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 maks. | 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 (typysk) | 30@3-5GHz | SMA |
QLF-2250-30 | DC | 2.25 | 1.2 | 1.2 (typysk) | 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 (typysk) | 30@4.78-7.5GHz | SMA |
QLF-3000-60 | DC | 3 | 1.5 | 1.3 | 60@3.52~10GHz | 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 | Φ0.38 PIN |
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 | 2,92 mm |
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 | 2,92 mm |
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 | 2,92 mm |
QLF-25000-40-1 | DC | 25 | 1.5 | 1.7 | 40@28-40GHz | 2,92 mm |
QLF-25000-40-2 | DC | 25 | 2 | 2 | 40@28-40GHz, 70@30-44GHz | 2,92 mm |
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 | 2,4 mm |
QLF-33000-25 | DC | 33 | 3 | 2 | 25@37-50GHz | 2,92 mm |
QLF-40000-20 | DC | 40 | 2 | 2 | 20@60GHz, 40@65GHz, 60@70GHz | 2,92 mm |
QLF-50000-20 | DC | 50 | 2 | 2.5 | 20@60GHz | 2,4 mm |