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    Tiny Cavity Duplexer Serves Cellular Systems

    June 10, 2010
    The model AD850-931D202 cavity duplexer from Anatech Electronics is designed for filtering cellular transmit and receive signals within the same unit. It provides two passbands, from 806 to 824 MHz and from 902 to 905 MHz, with better than 85-dB ...

    The model AD850-931D202 cavity duplexer from Anatech Electronics is designed for filtering cellular transmit and receive signals within the same unit. It provides two passbands, from 806 to 824 MHz and from 902 to 905 MHz, with better than 85-dB isolation and more than 20-dB return loss. The insertion loss is less than 1.5 dB for both passbands, with power-handling capability of 100 W. The passband ripple is less than 0.2 dB. The cavity duplexer, which measures only 382 x 257 x 85 mm, is supplied with Type N female connectors. The duplexer is designed for operating temperatures from -40 to +70 deg. C.

    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.

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