Telecoms, Datacoms, Wireless, IoT


SP4T antenna tuning switch

24 November 2021 Telecoms, Datacoms, Wireless, IoT

Infineon Technologies’ BGSA147ML10 is a single-pole four-throw (SP4T) antenna tuning switch optimised for RF applications up to 7,125 GHz. Its MIPI RFFE digital control interface allows easy implementation and high flexibility when operated in cellular mobile RF front-end designs.

The device is made of four ultra-low ON resistance and low OFF capacitance series switches and four shunt to ground switches, enabling on-demand open-reflective or short-reflective OFF ports behaviour. This last feature is of great value to reduce antenna engineering development time in case of unwanted antenna resonance or to improve antenna efficiency with less component tuning effort.

Unlike GaAs RF switches, highly linear RF performance is reached at all signal levels within the operating conditions. High RF voltage ruggedness and individually programmable shunt to ground switches on each RF throw make the BGSA147ML10 particularly efficient for switching inductors and capacitors in RF matching and antenna tuning circuits.


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