Product Description
Our 868MHz cavity band pass filter covers the EU ISM band from 863–870MHz with a center frequency of 868MHz, designed for UHF wireless communication systems. As a high-performance RF front-end component, it selectively passes target in-band signals while strongly attenuating out-of-band interference. It reduces adjacent frequency noise, improves the signal-to-noise ratio of radio transceivers, minimizes in-band signal attenuation, stabilizes wireless transmission quality and extends effective communication range.
Adopting precision metal cavity resonant construction, this rf filter delivers high out-of-band rejection to suppress spurious and harmonic signals, together with low insertion loss to preserve RF signal power. The cavity design guarantees consistent RF performance across varying temperatures, featuring low PIM and reliable power handling. Its fully shielded compact housing prevents RF leakage, supports simple assembly and integration, and ensures long-term stable continuous operation.
This helium cavity filter is widely applied in LoRa / LoRaWAN devices, Helium Hotspot miner gateways, FLARM Booster systems, IoT smart meters, industrial wireless sensor networks, smart city UHF monitoring equipment and other EU ISM-band wireless transceivers. It is an ideal RF component for systems requiring clean 868MHz signals and robust anti-interference performance.
Product Application
- LoRa / LoRaWAN wireless communication equipment
- Helium Hotspot miner gateway
- FLARM Booster
- IoT smart meter
- Industrial wireless sensor network
- Smart city UHF wireless monitoring devices
- EU ISM band wireless transceiver modules
Product Features
- Frequency Range: 863–870MHz, center frequency 868MHz (EU ISM Band)
- High out-of-band rejection, powerful suppression for spurious and harmonic interference
- Low insertion loss, keeps in-band RF signal strength
- High precision metal cavity resonant design, stable RF performance
- Good power handling and low PIM performance
- Shielded compact housing, prevent RF signal leakage
- Simple mechanical structure, convenient installation and integration
Product Specifications
| Center Frequency | 868MHz |
| Operating Bandwidth | 863-870MHz |
| Input And Output Impedance | 50Ω |
| VSWR | ≤ 1.3 |
| Insertion Loss | ≤ 1.0dB |
| In-Band Ripple | <0.5dB |
| Out-of-Band Rejection | ≥50dB @ 853MHz; ≥50dB @ 880MHz |
| Power Supply | 20W |
| Operating Temperature | -40~80°C |
| RF Connectors | SMA Female |
| Housing | Rugged Aluminum |
| Surface Finish | Painted Black |
| Size | 104*59*37.5mm |
| Net Weight | 308g |
| Intended Use | Indoor |
Package List
1 X 868MHz SMA Cavity Filter