Munich, GermanyEPCOS is touting its latest product as the smallest duplexer for the WCDMA Band VIII.
The duplexer is based on a SAW-SAW combination and measures 3.0 x 2.5 x 1.1 mm³. The product features high isolation values with low insertion losses of 1.7 dB in the Tx path and 2.0 dB in the Rx path. To lower power consumption, amplifier stages can modified in line with the low attenuation values, extending the standby times of mobile phones. A balun is integrated in the Rx path for impedance matching and balancing from 50- to 100-ω, making the duplexer compatible with all common chipsets.
Band VIII of the UMTS standard is now being introduced in Europe to augment Band I. Band VIII uses relatively low bandwidths of 880 to 915 MHz in the Tx path and 925 to 960 MHz in the Rx path. UMTS phones and base stations equipped for Band VIII have ranges comparable with GSM systems.
EPCOS AG, +49 89 636 09, www.epcos.com