Resonant xbar3/19/2023 While extending the performance of its popular FBAR filters, Broadcom has developed a SAW piezo-on-silicon technology that allows integrating multiple low band SAW filters on one substrate. XBAR should allow Murata to launch new products and compete in the high bands (HB), and ultra high bands (UHB) in cellular phones as well as in the new Wi-Fi 6E bands. Resonant’s XBAR uses different piezoelectric materials and entirely different resonator designs than the usual aluminum nitride-based FBAR and BAW filters. XBAR should help Murata to extend its dominance in SAW filters to the higher frequencies previously covered in the market mainly by Broadcom’s FBAR and Qorvo’s BAW filters, and beyond. Murata has licensed Resonant’s XBAR technology for new filter designs operating well above 2.7 GHz. Murata and Broadcom have announced filter technologies scheduled to ship in new products next year that will likely shake up the market. OEMs want acoustic filters that will improve performance and reduce size for devices using the new 5G and Wi-Fi bands, and suppliers hope to maintain market share and continue to capture value as their traditional filters and module product lines mature. Filter suppliers recently started to ship SAW and BAW filters with higher performance based on thin-film SAW and doped aluminum nitride BAW resonators, but this is just the start of what promises to be a momentous race in RF components for 5G, Wi-Fi 6E and Wi-Fi 7.Īs RF filter and front-end module suppliers rush to fill gaps in their product portfolios, they have in development a new generation of acoustic filters with higher operating frequencies and higher fractional bandwidths.
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