RF filters select or reject specific frequency bands in wireless communication systems — used in cellular base stations, satellite communication, radar systems, GPS receivers, Wi-Fi access points, and IoT radio modules to reduce interference and improve signal quality. Our RF filter inventory covers cavity filters, SAW and BAW filters, LTCC (low-temperature co-fired ceramic) filters, dielectric filters, and LC (inductor-capacitor) filters from TriQuint/Qorvo, Skyworks, Broadcom (Avago), Murata, TDK, and Knowles — spanning frequencies from 100MHz to 6GHz, power ratings from 0.5W to 50W, and packages from tiny 2x2mm SMD to waveguide and coaxial connectorized housings.
Specific RF filter frequencies for LTE bands, 5G sub-6 GHz, and ISM bands (433 MHz, 915 MHz, 2.4 GHz) for IoT modules are frequently allocated. Welllinkchips stocks a broad range of RF filter types and can source discontinued or custom-frequency filters needed for legacy telecom and radar equipment repair.
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