Telecoms, Datacoms, Wireless, IoT


Low-resistance antenna tuning switch

14 November 2018 Telecoms, Datacoms, Wireless, IoT

The BGSA143ML10, from Infineon Technologies, is a versatile single-pole quad-throw (SP4T) RF antenna tuning switch featuring open or short reflective ports, optimised for tuning applications up to 6,0 GHz. Including an RFFE digital control interface, this switch offers the possibility to adopt a SP4T, SP3T, SPDT along with SPST topology for better flexibility in RF front-end designs.

The part includes four ultra-low RON series ports and four individually switchable shunt switches to enable open-reflective and short-reflective behaviour. As a result, any type of antenna tuning switching or tuner circuits can be realised.

This single-supply chip integrates on-chip CMOS logic driven by a simple, single-pin CMOS or TTL compatible control input signal. Unlike GaAs technology, the 0,1 dB compression point exceeds the switch maximum input power level, resulting in linear performance at all signal levels, and external DC blocking capacitors at the RF ports are only required if DC voltage is applied externally.

Due to its very high RF voltage ruggedness, it is suited for switching any reactive devices such as inductors and capacitors in RF matching circuits without significant losses in quality factors.

For more information contact Dirk Venter, Altron Arrow, +27 11 923 9600, [email protected], www.arrow.altech.co.za



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