Sirius Microwave offers a variety of lowpass filters from 10KHz to 20GHz. These filters can be optimized for high power, small size, wide stopband and high selectivity. Optionally a group delay equalizer can be integrated. Some examples of lumped element lowpass filter designs are listed in table below. Contact factory for special requirements here.
Lowpass Filters
Description
Features
Chebyshev, Elliptic or Linear Phase
Low insertion loss
3 dB corner frequencies from 10KHz to 5GHz
Stopbands up to 20*Fc
Optional Group Delay Equalization
Specifications
| Model no. | 3dB Corner Frequency [MHz] | Passband from [MHz] | Passband to [MHz] | Insertion Loss [dB] | VSWR | Stopband from [MHz] | Stopband to [GHz] | Rejection [dB] | Power [W] |
|---|---|---|---|---|---|---|---|---|---|
| FLL-100K | 0.3 | 0 | 0.1 | 0.5 | 1.2:1 | 10 | 3.5 | 80 | 0.1 |
| FLLE9-4.5K | 4.7 | 0 | 4.3 | 0.5 | 1.2:1 | 5.6 | 0.5 | 60 | 10 |
| FLL-25-150W | 25 | 0 | 20 | 0.8 | 1.5:1 | 30 | 5 | 40 | 150 |
| FLLE-25-500W | 26 | 0 | 25 | 0.5 | 1.5:1 | 30 | 0.15 | 30 | 500 |
| FLL13-30-150W | 32 | 0 | 30 | 0.5 | 1.5:1 | 37 | 0.5 | 40 | 150 |
| FLLE7-50B | 52 | 0 | 50 | 0.5 | 1.5:1 | 60 | 0.3 | 40 | 300 |
| FLLE9-88 | 92 | 0 | 88 | 0.7 | 1.5:1 | 100 | 0.5 | 50 | 300 |
| FLL9-146 | 150 | 0 | 146 | 1.0 | 1.5:1 | 225 | 2 | 40 | 1 |
| FLLE7-174C | 184 | 0 | 174 | 0.7 | 1.5:1 | 216 | 1 | 40 | 250 |
| FLL13-180-150W | 185 | 0 | 160 | 0.45 | 1.5:1 | 250 | 2 | 60 | 150 |
| FLL15-370 | 370 | 0 | 350 | 1.0 | 1.5:1 | 520 | 2 | 80 | 10 |
| FLLE7-406B | 420 | 0 | 406 | 0.7 | 1.5:1 | 450 | 1 | 30 | 200 |
| FLL15-450 | 460 | 0 | 400 | 0.6 | 1.5:1 | 550 | 3 | 60 | 10 |
| FLL17-800Q | 920 | 0 | 800 | 1.0 | 1.5:1 | 1300 | 8 | 60 | 1 |
| FLL21-900 | 910 | 0 | 700 | 0.8 | 1.5:1 | 1020 | 10 | 60 | 5 |
| FLLE21-950 | 950 | 0 | 800 | 1.0 | 1.5:1 | 1000 | 14 | 30 | 1 |
| FLL17-2690 | 2900 | 0 | 2690 | 1.0 | 1.5:1 | 3600 | 26 | 60 | 10 |
| FLL15-3000 | 3000 | 0 | 2800 | 1.2 | 1.5:1 | 3600 | 16 | 50 | 1 |
