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Diplexer eases emission tests for wireless base stations

Posted: 10 Jul 2006 ?? ?Print Version ?Bookmark and Share

Keywords:K&L Microwave? Band-Pass/Band-Stop? diplexer?

Band-Pass/Band-Stop diplexer

K&L Microwave Inc., part of Dover Corp.'s Microwave Products Group, has introduced the Band-Pass/Band-Stop diplexer, which is said to efficiently and accurately assist in the out-of-band emission levels measurements in wireless base stations. These measurements are conducted during the U.S. Federal Communications Commission (FCC) certification process.

"Most current methods of measurement are cumbersome and require multiple connections and disconnections," says Rafi Hershtig, VP for advanced engineering and R&D at K&L Microwave. "The new Band-Pass/Band-Stop diplexer offers a broadband solution that requires just one set of quick connections. The simplicity of our module eliminates possible IM contributions from redundant circuitry otherwise used."

With the Band-Pass/Band-Stop filter's simple set-up, the output of the base station is fed into the common port of the diplexer. While IM products are measured through the Band-Stop port, the main carriers pass through the Band-Pass port. For each communication band the associated diplexer has been developed. Additionally, the IM products are measured from DC to 3.5GHz in just one measurement.

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