The Infineon Bi directional coupler IC is designed for 2G, 3G, 4G RF front end applications. The device contains a bidirectional coupler operating in one or multiple bands within 0.6 GHz to 2.7 GHz frequency range. The coupled output contains a low pass filter for 5 GHz ISM blockers suppression. The coupler offers low insertion loss and high directivity. The coupler is controlled via a GPIO pin. No external power supply blocking or RF decoupling capacitors are required. The coupler is a fully integrated device deploying Infineon high volume RF CMOS technology. The device has a very small size of only 1.1 x 0.7 mm2 and a maximum height of 0.4 mm.

GPIO controlled
Integrated low pass filter
Supports all cellular standards
RoHS and WEEE compliant package
Fully integrated coupler in RF CMOS
Designed for low insertion loss and high directivity