LC filters are designed to remove high-frequency interference, select specific ranges and process signals in various circuits

Photo: Rostec State Corporation

Rosel holding included in Rostec State Corporation has started mass production of discrete and integral LC filters — key components for spacecraft airborne communication systems, radar and telecommunications equipment, and control systems. The products are designed to remove high-frequency interference, isolate particular ranges and process signals in various circuits. The filters can identify friend or foe frequencies, even when they are very close to each other. 

LC filters cut off the heaviest interference, select the desired signal with minimized loss, and “clean up” the signal to avoid troubles for other on-the-air devices. In addition, the devices have low insertion loss level, providing a high signal quality. 

The products feature small dimensions — 2.5 × 2.0 mm — and significantly improve the performance of communication, radar and space operations control systems. The new devices have improved specifications compared with similar domestic products and facilitate replacement of foreign solutions. 

The discrete filters are available in sealed glass-metal housings allowing for different types of mounting. Integral filters consist of a ceramic substrate with embedded components, offering small size and improved design reliability.