Mobile filter startup Resonant Inc. announced a new licensing agreement with an existing “tier one” customer for the development of a TDD filter, an FDD filter and a quadplexer, all for the Chinese market.

The TDD design supports high performance user equipment (HPUE), which is being adopted to improve coverage at the higher frequency cellular bands, such as LTE band 41. The FDD design is for a Wi-Fi coexistence filter that will prevent cellular signals from interfering with 2.4 GHz Wi-Fi. The quadplexer is a new design for Resonant and one the company believes is “one of the hardest quadplexers on the market.” All three designs will use chip-scale packaging.

Design acceptance, milestone payments and royalty terms have been negotiated but were not disclosed.

George Holmes, CEO of Resonant, said, “These three filters focused on the massive Chinese market are expected to help this customer broaden their revenue potential and accelerate their growth. Looking ahead, the emerging definition of 5G envisions dramatic performance improvements in network capacity, mobile connections, latency, cost, data rates and coverage. More bandwidth will be needed, which will require higher frequency components, more carrier aggregation, more complex multiple-input-multiple-output (MIMO) antennas, new and adaptable waveforms and improved interference mitigation. We believe that by leveraging our ISN platform, Resonant will be well-positioned to capture market share in this rapidly evolving industry.”