
‘Duplexer’
An Electronicstalk guide
Start with the news release FBAR duplexers for mobile handsets and terminals from Avago Technologies, which we summarised at the time by saying "Avago Technologies has launched a 4G/LTE Band 7 duplexer to its line of high-isolation, 2 x 2.5mm film bulk acoustic resonator (FBAR) duplexers for mobile handsets and data terminals.". Several months prior to that, we featured the news release Avago designs duplexer for UMTS Band 2 handsets from Avago Technologies: "Avago Technologies has announced a miniature PCS duplexer that has been specifically designed for use in UMTS Band 2 handsets. ".
In June 2009, we covered the news from Avago Technologies - take a look at Avago replaces ACMD-7402 with greener version which says: "Avago Technologies has added an environmentally friendly PCS FBAR Band Duplexer to its series of miniature duplexers. ".
Take a look also at the news release from Avago Technologies, Front-end modules extend mobile talk time, as well as Avago launches ACMD-7605 duplexer from Avago Technologies, and Mobile duplexer cuts size and losses from Avago Technologies.
Latest stories...
RF modules to cash in on ultra-low-cost handsets (January 2008)
Highly integrated modules offer a reduced bill of materials, smaller size, longer battery life and proven interoperability with leading single-chip silicon radios.
Switch makes sense of handset signals (June 2007)
Device combines four independent high performance RF switches on a monolithic flip-chip IC controlled by a single onboard CMOS controller.
Quintplexer keeps handset signals distinct (June 2007)
FBAR-based quintplexer module helps designers create ultrasmall high-performance mobile phones that deliver simultaneous GPS functionality.
Driver-development kit in all-in-one printers (March 2007)
The IPS DDK Windows print driver development kit has been deployed in Kodak's series of EasyShare inkjet all-in-one printers.
Modules help streamline 3G designs (March 2007)
Multichip front end modules provide complete transmit chain for WCDMA/Edge mobile handsets; including the power amplifier, RF coupler, transmit filter and duplexer, and antenna switch.
SAW duplexers shrink to chip-size packages (February 2007)
Small, lightweight surface acoustic wave (SAW) duplexer has a built-in matching circuit featuring improved attenuation and isolation characteristics.
RF front-end module saves space in handsets (February 2007)
Module integrates FBAR-based duplexer with advanced power amplifier technology to create the industry's smallest integrated RF front-end module for UMTS Band 1 handsets.
Filter module has five for multifunction handsets (June 2006)
Module combines five individual FBAR filters to produce a totally passive solution for dual-band cellular communications with GPS.
Further reading
- FBAR duplexers for mobile handsets and terminals
Avago Technologies has launched a 4G/LTE Band 7 duplexer to its line of high-isolation, 2 x 2.5mm film bulk acoustic resonator (FBAR) duplexers for mobile handsets and data terminals. - Avago designs duplexer for UMTS Band 2 handsets
Avago Technologies has announced a miniature PCS duplexer that has been specifically designed for use in UMTS Band 2 handsets.

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