- Satellite-IF Low Pass Filters
- Features :
* CE Approved, Class A RFI Shielding
* SMD, High Stability
* High Rejection
* Low Loss
* Excellent Return Loss
* Waterproof (alternative)
* Patented Housing
* Suitable for SMATV and
other communication systems
This low pass filter series is designed for use in satellite reception systems to pass FM, TV, CATV and satellite signals and filter out unnecessary frequencies or interference frequencies (e.g. high band satellite signals, WLAN, 802.11, Bluetooth, etc.).
Soontai's low pass filters provide many features (see below).
1. Rejection better than 50dB.
2. Lowest insertion loss, signal-through-loss reduced to a minimum.
3. Excellent return loss, good impedance match reduces signal loss to
keep the signal clean. (see figure)
4. Dual layer copper tubes provide the best radio frequency interference (RFI) / electromagnetic
interference (EMI) protection.
We can design other models accroding to your specifications.
For more filter infomation please see the filter profile technical notes in our Tech Support.
Custom filters or more details on inquires, please refer to Custom Filters.
| Item | LPF - 1750 | LPF - 1750B |
| Power Passing | DC 30V / 500mA (max) | Blocked |
| Impedance | 75 ohm | |
| Pass Band | 5 - 1750MHz | |
| Insertion Loss | 0.5dB (typ) / 2.5dB (max) | |
| Return Loss | 20dB (typ) / 12dB (min) | |
| Stop Band | 2 - 3GHz | |
| Rejection | 55dB (typ) / 50dB (min) | |
| Dimensions (incl. M/F connectors) | 21(¢) x 57 mm | |
| Net Weight | 48g | |
* Specifications may be change according to customer's requirements.
| Model | Pass Band | Model | Pass Band |
| LPF - 1450 | 5 - 1450 MHz | LPF - 1750 | 5 - 1750 MHz |
| LPF - 1800 | 5 - 1800 MHz | LPF - 2150 | 5 - 2150 MHz |