Knowles DLI's filter technology addresses the challenge of implementing high performance filters at mmWave frequencies. 26 GHz, 28 GHz, and 39 GHz catalog filters provide 3 GHz of bandwidth, greater than 50 dB rejection, are 20x smaller than current alternatives while implemented in surface mount packages for standard tune-free assembly and provide temperature-stable operation from -55°C to +125°C. Off-the-shelf catalog designs are available to 42 GHz.