Tiny SAW devices target 5G applications

September 19, 2019 //By Jean-Pierre Joosting
Tiny SAW devices target 5G applications
New surface acoustic wave (SAW) devices from Murata nfor RF filtering and duplexer applications address the ongoing and ever increasing need to reduce the size of components in mobile phones, especially with the coming of 5G.

The SAYAV/SAYAR series for duplexing come in the 1612 size, and the SAFFW series in 0907 size for Rx filtering. They claim to be the world's smallest devices with equal or better characteristics compared to conventional SAW devices.

For use in smart phones, WiFi home routers, M2M modules (industrial) and other IoT devices with LTE and WiFi, these SAW devices will appeal to engineers who are developing consumer and/or industrial devices with an LTE/Wifi function.

As smartphones now deliver more functions and performance, they need a larger battery capacity, and they tend to have more elaborate, space-hungry, built-in cameras. To create more space to mount components that enable extra functions and higher performance levels, smaller RF substrates are required for handling wireless signals.

At the same time, modern smartphones support multiple bands while LTE now adopts wireless technologies that improve signal reception quality such as carrier aggregation and multiple-input and multiple-output (MIMO). This has made RF circuits increasingly complex. Also, to support the upcoming implementation of the fifth-generation mobile communications system (5G), RF circuits will inevitably become more complex at a faster pace.


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