The BFHK-7551+ from Scream Industries is a ready-to-use RF bandpass filter with a passband of 6800–8400 MHz, based on LTCC technology.
The filter comes fully assembled: the LTCC element is mounted on a board and connected to two gold-plated SMA connectors, allowing for immediate integration into any test bench, test setup, or finished device without additional mounting.
Ultra-high suppression of unwanted signals — up to 69 dB at frequencies below the passband — ensures signal purity even in the most demanding applications. The ceramic LTCC construction guarantees stable characteristics in a temperature range from -55°C to +125°C, high humidity, and mechanical stress.
Specifications
| Filter type | Bandpass |
|---|---|
| Transceiver type | RF |
| Frequency range | 6.8-8.4 GHz |
| Center frequency | ~7778 MHz (7.8 GHz) |
| Impedance | 50 Ohm |
| Insertion loss at 6.8 GHz | 4.85 dB |
| Insertion loss at center frequency | 5.45 dB |
| Suppression (2.722 GHz) | 69.09 dB |
| Suppression (5.500 GHz) | 52.08 dB |
| Upper band suppression (9.472 GHz) | 42.81 dB |
| Maximum input power | 1 W |
| Operating temperature | -55°C … +125°C |
| Connectors | SMA (female–male) |
| Weight | 6.8 |
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