Knowles Precision Devices Filter Products For 5G mmWave

Filter Products for the 5G FR2 Bands

Knowles Precision Devices (DLI) Filter Technology addresses the challenge of implementing high performance filters at mmWave frequencies. 26GHz, 28GHz and 39GHz catalog filters provide 3GHz of bandwidth, greater than 50dB 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 42GHz and custom design services are available.

3GPP TS 38.101 defines the following frequency bands:

3GPP Band Low (GHz) High (GHz) BW (GHz)  
n258, 26GHz 24.25 27.5 3.25 26GHz Filter Products
n257, 28GHz 26.5 29.5 3 28GHz Filter Products
n261, 28GHz* 27.5 28.35 0.85 28GHz Filter Products
n260, 39GHz 37 40 3 39GHz Filter Products

*n261 is a subset of n257