Murata Introduces World's First High-Frequency Filter Using XBAR Technology For 5G, Wi-Fi 7 And Future 6G Networks

Kyoto, Japan ( BUSINESS WIRE ) - Murata Manufacturing Co., Ltd. (TOKYO: 6981) (ISIN: JP3914400001) announces the mass production and commercial shipment of the world's first ^*1 high-frequency filter using XBAR technology ^*2 . Developed by combining Murata's proprietary SAW (Surface Acoustic Wave) filter expertise with XBAR technology from Murata subsidiary Resonant Inc., the filter enables the extraction of desired signals while maintaining low insertion loss and high attenuation. These characteristics are critical for the latest wireless technologies, including 5G, Wi-Fi 6E, Wi-Fi 7, and upcoming 6G technologies.

The demand for reliable high-frequency communications continues to grow due to the widespread adoption of 5G and the future development of 6G. At the same time, Wi-Fi standards such as Wi-Fi 6E and Wi-Fi 7 are expanding into higher frequency domains to accommodate superfast data speeds. The filters used in such applications face important challenges, such as out-of-band interference, maximum system battery life, and compliance with strict space constraints. Conventional approaches using LTCC (Low Temperature Co-Fired Ceramic) or common BAW (Bulk Acoustic Wave) filters often cannot achieve the required performance.

Murata's new XBAR-based filter overcomes these performance limitations with high attenuation performance while maintaining a wide bandwidth and low signal loss. The XBAR structure itself excites bulk acoustic waves (BAWs) using comb-shaped electrodes and a thin single-crystal piezoelectric film, exceeding the capabilities of conventional filter structures. The filter is capable of effectively eliminating high-frequency interference, even in bands above 3 GHz, enabling clearer signal detection and improved performance, contributing to high-speed, high-capacity, and high-quality wireless communications.

Key performance characteristics include a passband of 5150-7125 MHz, a typical insertion loss of 2.2 dB, and a typical return loss of 17 dB. Typical attenuation values are 11 dB at 4800-5000 MHz, 28 dB at 3300-4800 MHz, 27 dB at 7737-8237 MHz, and 26 dB at 10300-14250 MHz.

The new filter is specifically designed for devices with embedded wireless functionality, including smartphones, wearables, notebook PCs, and communications gateways, providing an optimal balance of performance and cost-effectiveness. Murata will continue to innovate in filter technology to support the development of wireless communications. The company expects this architecture to continue to expand, and future generations are expected to be capable of operating effectively at ultra-high frequencies above 10 GHz.

Notes
^*1 According to Murata's research as of July 7, 2025.
^*2 XBAR technology: Murata's proprietary filter structure excites bulk acoustic waves (BAWs) using comb-shaped electrodes and thin piezoelectric single-crystal films.

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About Murata
Murata Manufacturing Co., Ltd. is a global leader in the design, manufacture, and distribution of ceramic-based passive electronic components and solutions, communication modules, and power supplies. Murata is committed to developing advanced electronic materials and cutting-edge, multifunctional, high-density modules. The company employs employees and operates manufacturing facilities worldwide.

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