Izici:
- Ukwenqatshwa kwe-Stopband ephezulu
- Usayizi Omncane
Isihlungi se-low pass yisihlungi sokucubungula isignali esigcina amasignali amafrikhwensi aphansi ngokususa amasignali amafrikhwensi aphezulu. Ivumela amasiginali anamaza angaphansi komkhawulo othile ukuthi adlule, kodwa yenqaba amasiginali anamaza amakhulu kunalowo mkhawulo.
1. Amasignali angaphansi kwefrikhwensi ethile kuphela avunyelwe ukudlula, kuyilapho amasiginali angaphezu kwaleyo frequency ayahlungwa noma abe buthakathaka.
2. Uma udlula kumasignali we-low-frequency, cishe alukho ushintsho esigabeni.
3. Ngokuvamile, i-capacitor eyodwa noma ngaphezulu kanye nama-inductors asetshenziselwa ukwakha izihlungi ze-low-pass.
1.isignali ebushelelezi
isihlungi se-low-pass sisetshenziswa kakhulu ukwenza isignali bushelelezi, singasusa umsindo kusignali yefrikhwensi ephezulu, ukuze isiginali izinze kakhudlwana. Ezimeni lapho isignali ebushelelezi idingeka, isihlungi se-low-pass singasusa umsindo wokuphazamiseka we-high-frequency, ngaleyo ndlela senze isistimu ithembeke futhi izinze.
2.ukunciphisa umsindo
isihlungi se-low-pass ngeke sithinte isignali yefrikhwensi ephansi, kuyilapho sigcina isignali yefrikhwensi ephansi, umsindo wefrikhwensi ephezulu ungahlungwa. Ekucutshungulweni komsindo noma ekucubungulweni kwesithombe, izihlungi zephasi eliphansi zingahlunga umsindo futhi zenze isignali ecutshunguliwe icace.
3.nciphisa iphutha
isihlungi se-low-pass singanciphisa iphutha, ikakhulukazi esilungele ukukalwa kwensimbi enembile. Kwezinye izilinganiso ezinzima, isihlungi se-low-pass singasusa umsindo, ukuphazamiseka nezinye izici, ukuze imiphumela yokulinganisa inembe kakhulu futhi ithembeke.
4.uhlu olubanzi lohlelo lokusebenza
Isihlungi sokudlula okuphansi sinezinhlobonhlobo zezinhlelo zokusebenza, kusukela kumsindo kuya esithombeni, kusukela ekuxhumaneni kuya ekulawuleni, cishe yonke indawo. Isibonelo, ekucubunguleni isignali ye-baseband, isihlungi se-low-pass siyadingeka.
Ekuxhumaneni, isihlungi se-low-pass singahlunga umsindo we-high-frequency, ukuphazamiseka, njll., ukuqinisekisa ikhwalithi yokuxhumana; Emkhakheni wokulawula, isihlungi se-low-pass singasetshenziselwa ukushelela kwesignali nokuhlunga umsindo.
Qualwaveihlinzeka ngezihlungi ezisezingeni eliphansi zokwenqatshwa kokudlula kububanzi be-DC-50GHz. Izihlungi eziphansi zokudlula zisetshenziswa kabanzi ezinhlelweni eziningi.
Inombolo Yengxenye | I-passband(GHz, Min.) | I-passband(GHz, Max.) | Ukulahlekelwa Kokufaka(dB, Max.) | I-VSWR(Ubuningi.) | I-Stopband Attenuation(dB) | Izixhumi |
---|---|---|---|---|---|---|
QLF-1-40 | DC | 0.001 | 1.5 | 1.5 | 40@2-4MHz, 50@4-100MHz | I-SMA |
QLF-2-15-40 | 0.002 | 0.015 | 2.5 | 1.5 | 40@17-200MHz | I-SMA |
QLF-2.5-50 | DC | 0.0025 | 0.8 | 1.5 | 50@5-50MHz | I-SMA |
QLF-5-50 | DC | 0.005 | 1 | 1.5 | 50@8-50MHz | I-SMA |
QLF-10-50 | DC | 0.01 | 1 | 1.5 | 50@13-150MHz | I-SMA |
QLF-30-40 | DC | 0.03 | 1 | 1.5 | 40@45MHz, 60@60MHz | I-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 | I-SMA |
QLF-55-35 | DC | 0.055 | 0.8 | 1.5 | 35@0.07-0.2GHz | I-SMA |
QLF-200-2400-60 | 0.2 | 2.4 | 5 | 1.5 | 60@3.6GHz | I-SMA |
QLF-300-40 | DC | 0.3 | 1 | 1.5 | 40@450MHz, 60@600MHz | I-SMA |
QLF-300-60 | DC | 0.3 | 0.5 | 1.5 | 60@0.643-3GHz | I-SMA |
QLF-330-60 | DC | 0.33 | 0.5 | 1.3 | 60@0.643-3GHz | I-SMA |
I-QLF-480-30 | DC | 0.48 | 3 | 1.5 | 30@0.53-3GHz | I-SMA |
QLF-1000-30 | DC | 1 | 0.9 | 1.2 | 30@1.9-5GHz | I-SMA |
QLF-1000-70 | DC | 1 | 1 | 1.5 | 70@1.3-4.2GHz | I-SMA |
I-QLF-1200-60 | DC | 1.2 | 1 | 1.5 | 60@1.8-8GHz | I-SMA |
QLF-1400-50 | DC | 1.4 | 2 | 1.6 | 50@2GHz ubuningi. | I-SMA |
QLF-2000-50 | DC | 2 | 1 | 1.5 | 50@2.3-4GHz, 40@4~7GHz | I-SMA |
QLF-2186-30 | 1.5 | 2.186 | 2 | 1.6 | 30@2.37-3GHz | I-SMA |
QLF-2200-30 | DC | 2.2 | 0.9 | 1.2(uhlobo.) | 30@3-5GHz | I-SMA |
QLF-2250-30 | DC | 2.25 | 1.2 | 1.2(uhlobo.) | 30@3-5GHz | I-SMA |
QLF-2400-58 | DC | 2.4 | 2 | 1.7 | 58@3-18GHz | I-SMA |
QLF-3000-30 | DC | 3 | 0.9 | 1.3(uhlobo.) | 30@4.78-7.5GHz | I-SMA |
QLF-3200-40 | DC | 3.2 | 1 | 1.5 | 40@3.8-18GHz | I-SMA |
QLF-3200-60 | DC | 3.2 | 1.5 | 1.5 | 60@3.6-20GHz | I-SMA |
QLF-3500-40 | DC | 3.5 | 1.5 | 1.5 | 40@3.85-18GHz | I-SMA |
I-QLF-3870-30 | DC | 3.87 | 2.5 | 1.7 | 30@4.32GHz | I-SMA |
QLF-4000-50 | DC | 4 | 1 | 2 | 50@4.7-8GHz | I-SMA |
QLF-4000-60 | DC | 4 | 1.5 | 1.3 | 60@4.5-12.3GHz | I-SMA |
QLF-4400-40 | DC | 4.4 | 0.73 | 1.2 | 40@6.28-9.8GHz | I-SMA |
QLF-5000-40 | DC | 5 | 0.68 | 1.2 | 40@7.05-10GHz | I-SMA |
QLF-5000-45 | DC | 5 | 1 | 2 | 45@5.8-10.5GHz | I-SMA |
QLF-5325-30 | DC | 5.325 | 1.5 | 1.5 | 30@5.925GHz | I-SMA |
QLF-5500-60 | DC | 5.5 | 3 | 2 | 60@6-20GHz | I-SMA |
QLF-6000-20 | 0.5 | 6 | 2 | 1.8 | 20@6.5GHz | I-SMA |
QLF-6000-45 | DC | 6 | 1 | 2 | 45@6.8-10.5GHz | I-SMA |
QLF-6000-60 | DC | 6 | 1.5 | 1.3 | 60@6.7-15.5GHz | I-SMA |
QLF-6500-30 | DC | 6.5 | 1 | 1.8 | 30@8-15GHz | I-SMA |
QLF-6500-60 | DC | 6.5 | 1.5 | 1.3 | 60@7.27-15.3GHz | I-SMA |
QLF-7000-48 | DC | 7 | 1 | 2 | 48@7.8-11GHz | I-SMA |
QLF-7000-50 | DC | 7 | 1.5 | 1.3 | 50@7.77-15.5GHz | I-SMA |
QLF-8000-40 | DC | 8 | 2 | 2 | 40@9-25GHz | I-SMA |
QLF-8000-40-1 | DC | 8 | 1.2 | 1.5 | 40@8.9-16GHz | I-SMA |
QLF-8000-50 | DC | 8 | 1.5 | 1.4 | 50@8.8-16.2GHz | I-SMA |
QLF-8000-50-1 | DC | 8 | 1 | 2 | 50@8.8-20GHz | I-SMA |
QLF-8000-50-2 | DC | 8 | 1.2 | 2 | 50@9-18GHz | I-SMA |
QLF-9000-50 | DC | 9 | 1.5 | 1.4 | 50@9.8-17GHz | I-SMA |
QLF-9000-50-1 | DC | 9 | 1 | 2 | 50@15-22GHz | I-SMA |
QLF-9000-60 | DC | 9 | 1 | 1.6 | 60@14-17GHz | I-SMA |
QLF-9500-50 | DC | 9.5 | 1.5 | 1.4 | 50@10.2-18GHz | I-SMA |
QLF-10000-20 | DC | 10 | 0.5 | 1.7 | 20@12GHz | I-SMA |
QLF-10000-30 | DC | 10 | 1 | 1.7 | 30@13.2GHz | I-SMA |
QLF-10000-30-1 | DC | 10 | 1 | 1.8 | 30@13-40GHz | I-SMA |
QLF-10000-35 | DC | 10 | 1 | 2 | 35@11GHz | I-SMA |
QLF-10000-50 | DC | 10 | 1.5 | 1.4 | 50@10.9-18.5GHz | I-SMA |
QLF-11000-45 | DC | 11 | 2 | 1.8 | 45@12-24GHz | I-SMA |
QLF-11000-50 | DC | 11 | 1.5 | 1.5 | 50@12.1-19GHz | I-SMA |
QLF-11700-50 | DC | 11.7 | 2 | 1.7 | 50@12.7-13.45GHz | I-SMA |
QLF-12000-70 | DC | 12 | 1 | 1.7 | 70@14-19GHz | I-SMA |
QLF-13000-50 | DC | 13 | 2 | 1.5 | 50@14.1-21GHz | I-SMA |
QLF-13000-55 | DC | 13 | 1.5 | 1.8 | 55@15.2-40GHz | I-SMA |
QLF-14000-45 | DC | 14 | 1 | 1.8 | 45@20-40GHz | I-SMA |
QLF-15000-50 | DC | 15 | 2.5 | 1.5 | 50@16-22.3GHz | I-SMA |
QLF-16000-50 | DC | 16 | 1.5 | 2 | 50@16.8-24GHz | I-SMA |
QLF-17000-50 | DC | 17 | 1.5 | 2 | 50@30-33GHz | I-SMA |
QLF-18000-15 | DC | 18 | 1 | 1.7 | 15@20GHz | I-SMA |
QLF-18000-35 | DC | 18 | 1.5 | 2 | 35@19-28GHz | I-SMA |
QLF-18000-40 | DC | 18 | 2 | 2 | 40@20-38GHz | 2.92mm |
QLF-18000-45 | DC | 18 | 1.2 | 2 | 45@28-40GHz | I-SMA |
QLF-18000-50 | DC | 18 | 3 | 1.6 | 50@19.1-26GHz | I-SMA |
QLF-18000-50-1 | DC | 18 | 2 | 2 | 50@18.8-19.5GHZ | I-SMA |
QLF-20000-25 | DC | 20 | 2 | 2 | 25@23-40GHz | I-SMA |
QLF-20000-50 | DC | 20 | 1.2 | 2 | 50@22GHz | I-SMA |
QLF-20000-60 | DC | 20 | 1 | 2 | 60@23-40GHz | 2.92mm |
QLF-20000-70 | DC | 20 | 1.5 | 1.8 | 70@24GHz | I-SMA |
QLF-20000-75 | DC | 20 | 1.5 | 2 | 75@24-44GHz | I-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 | 2.92mm |
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 |