Tiny UMTS Duplexers Fit In 2-mm By 1.6-mm Footprint

Duplexers are key components for UMTS mobile phones and data cards. EPCOS is miniaturizing UMTS duplexers with new filter components for W-CDMA bands I and V that have a footprint of 2.0 mm x 1.6 mm and a low insertion height of 0.45 mm. The miniaturized duplexers, housed in a 2016 case, allow the integration of more bands in a mobile phone without changing the phone’s size. Banding is required for mobile phones and data cards operating in the networks of all UMTS providers worldwide. Manufacturers are already developing mobile phones that operate in up to five different W-CDMA bands. The first 2016 duplexers were implemented completely on a SAW basis. Going forward, the SAW filters will be complemented by BAW filters, which have better performance at certain frequencies. Volume production of the new 2016 duplexers will start at the beginning of 2010. Samples are available now. EPCOS AG, Munich, Germany. +49 89 636 09.