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The series features a sophisticated multi-pole design to ensure that wanted signals are properly passed while others are rejected. In addition to good selectivity, DFCL series filters offer ripples of 0.4 dB maximum at f0+/-30 MHz and 1.2 dB maximum at f0+/-65 MHz, producing the wide and flat curves required at the pass band by DPD amplifier designs. These characteristics are ideal for cellular base station applications that use DPD, but Murata’s new filters can also be implemented in lower power and smaller base stations known as microcells and femtocells.
“Murata’s successful goal of dramatically reducing RF filter size greatly helps the market as it moves toward smaller repeaters such as picocells,” said Scott Klettke, senior group product manager of RF & Microwave for Murata Electronics North America. “By committing to the miniaturization of these filters while supplying a wide pass band, good selectivity and flat performance over the bandwidth, Murata can provide a desirable product that meets current and future needs.”
Additional information is available at www.murata-northamerica.com.