Title :
High Performance WCDMA1900 Combined LTCC/SAW/BAW Duplexer for Mobile Phones
Author :
Gozhenko, Vladyslav ; Puffer, Walter ; Ritter, Dietmar ; Przadka, Andreas
Author_Institution :
EPCOS AG, Munich
Abstract :
In this paper are presented a design and a performance of a duplexer for WCDMA systems combined of a low temperature co-fired ceramic (LTCC) substrate, a surface acoustic wave (SAW) filter and a bulk acoustic resonance (BAW) filter. The designed duplexer provides enhanced stopband characteristics and occupies a small volume. The insertion losses are better than -3.8 dB in the 1850-1910 MHz and 1930-1990 MHz bands and the rejection of the out-of-band frequencies till 2.5 GHz is higher than -38 dB.
Keywords :
band-stop filters; bulk acoustic wave devices; code division multiple access; mobile handsets; surface acoustic wave filters; LTCC-SAW-BAW duplexer; WCDMA1900; bulk acoustic resonance filter; frequency 1850 MHz to 1910 MHz; frequency 1930 MHz to 1990 MHz; low temperature co-fired ceramic substrate; mobile phones; stopband filter; surface acoustic wave filter; Acoustic waves; Ceramics; Filters; Frequency; Insertion loss; Mobile handsets; Multiaccess communication; Resonance; Surface acoustic waves; Temperature;
Conference_Titel :
Microwave Conference, 2008. EuMC 2008. 38th European
Conference_Location :
Amsterdam
Print_ISBN :
978-2-87487-006-4
DOI :
10.1109/EUMC.2008.4751528
