Features
- 40 dB Stop Band Rejection
- Models Available up to 220GHz
- High Frequency Models
Available on Request
Low pass filters simplify measurements in microwave systems and enhance system performance by effectively reducing undesirable signals, i.e. harmonics, to an acceptably low level.
All models provide a very wide ‘stop band’ of frequencies above the recommended waveguide band. The pass band VSWR is generally better than 1.5:1 and in ser tion loss less than 1.5 dB.
Filters of this type are particularly suitable for applications involving swept or slotted line measurements.
A range of standard models is available as detailed below. Customised and special models can be combined with other devices.
For example a low pass filter combined with waveguide to coax adaptor can also be supplied.
| Model | Waveguide | Passband Frequency Range (GHz) | Stop Band Frequency Range (GHz) | Stop Band Rejection (dB) | Maximum Insertion Loss (dB) | VSWR Generally better than | Dimension A (mm) |
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| WG | R | WR | |||||||
| 10280 | 10 | 32 | 284 | 2.60 - 3.95 | 5.20 - 11.85 | >40 | 0.5 | 1.15 | 500 |
| 11A280 | 11A | 40 | 229 | 3.22 - 4.90 | 6.60 - 14.70 | >40 | 0.5 | 1.15 | 450 |
| 12280 | 12 | 48 | 187 | 3.94 - 5.99 | 7.88 - 17.97 | >40 | 0.5 | 1.15 | 375 |
| 14280 | 14 | 70 | 137 | 5.38 - 8.18 | 10.76 - 24.54 | >40 | 0.5 | 1.15 | 250 |
| 15280 | 15 | 84 | 112 | 6.58 - 10.0 | 13.16 - 30.00 | >40 | 0.5 | 1.15 | 215 |
| 16280 | 16 | 100 | 90 | 8.20 - 12.5 | 16.40 - 37.50 | >40 | 0.5 | 1.15 | 160 |
| 17280 | 17 | 120 | 75 | 9.84 - 15.0 | 19.68 - 45.00 | >40 | 0.5 | 1.15 | 140 |
| 18280 | 18 | 140 | 62 | 11.9 - 18.0 | 23.80 - 54.00 | >40 | 0.5 | 1.15 | 110 |
| 19280 | 19 | 180 | 51 | 14.5 - 22.0 | 29.00 - 66.00 | >40 | 0.5 | 1.15 | 100 |
| 20280 | 20 | 220 | 42 | 17.6 - 26.7 | 35.20 - 80.10 | >40 | 0.5 | 1.15 | 80 |
| 21280 | 21 | 260 | 34 | 21.7 - 33.0 | 43.4 - 99.0 | >40 | 0.5 | 1.2 | 80 |
| 22280 | 22 | 320 | 28 | 26.4 - 40.1 | 52.80 - 120.3 | >40 | 0.75 | 1.2 | 60 |
| 23280 | 23 | 400 | 22 | 33.0 - 50.1 | 66.00 - 150.3 | >38 | 1.0 | 1.3 | 50 |
| 24280 | 24 | 500 | 19 | 39.3 - 59.7 | 78.60 - 179.1 | >38 | 1.0 | 1.3 | 50 |
| 25280 | 25 | 620 | 15 | 49.9 - 75.8 | 99.8 - 227.4 | >38 | 1.0 | 1.4 | 35 |
| 26280 | 26 | 740 | 12 | 60.5 - 92.0 | 102.5 - 184 | >40 | 0.6 | 1.5 | 15 |
| 27280 | 27 | 900 | 10 | 73.8 - 112 | 128 - 224 | >40 | 0.4 | 1.66 | 12 |
