BAW Filters Screen 2.4 GHz

May 20, 2014

A pair of BAW filters is designed to allow coexistence of different wireless products with 4G LTE products.

A pair of bulk-acoustic-wave (BAW) filters developed by TriQuint for wireless applications at 2.4 GHz—such as Bluetooth and wireless-local-area-network (WLAN) systems—that must coexist with Fourth-Generation (4G) networks is now available from the firm’s stocking distributor, RFMW, Ltd. Models 885062 and 885071 BAW filters pass desired WiFi signals and provide high rejection in adjacent 4G Long-Term-Evolution (LTE) cellular bands while fitting into compact housings measuring just 1.4 × 1.2 × 0.46 mm.

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Model 885062 exhibits maximum insertion loss of 1.7 dB in the WiFi passband, with out-of-band rejection of 53 dB from 2300 to 2365 MHz and 58 dB from 2365 to 2370 MHz. Model 885071 has maximum WiFi passband insertion loss of 1.9 dB, with out-of-band rejection of 53 dB from 2300 to 2370 MHz and 55 dB from 2496 to 2501 MHz. Both filters are rated for average power-handling capability to +28 dBm, and both are AEC-Q200 qualified for automotive applications.

RFMW, Ltd. (stocking distributor for TriQuint), 188 Martinvale Lane, San Jose, CA 95119; (408) 414-1450

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.