Knowles – Thin Film Filters

We make a wide range of filters, from 300 MHz to 75 GHz in Bandpass, Lowpass, Highpass and Bandstop configurations. Whether you’re looking for a catalog part, a build to print solution or a custom build, we take on the complex challenges of implementing high-performance filters across the widest range of specifications.

We’re an AS-9100 certified supplier to the majority of defense contractors in the United States – and many worldwide – that purchases passive RF and microwave filtering products. Our products are currently in use worldwide in the most advanced military and aerospace instrumentation and communication systems. A wide range of subsea, air and space navigation, communication and detection systems rely on the superior technology and performance of our filters.

Filter Product Features:

• High reliability
• High temperature
• Small footprint
• High frequency