Power amplifier filter for radio-frequency signals

Details Power amplifier filter for radio-frequency signals Power amplifier filter for radio-frequency signals

2011-07-05

2011-07-05

Summons, Barbara (Department: 2817)

Wave transmission lines and networks

Coupling networks

Electromechanical filter

C375S297000, C330S12400D, C330S295000

Reexamination Certificate

active

07973620

ABSTRACT:
A power amplifier filter for radio-frequency signals having an outphasing type architecture comprising a first stage (2) capable of generating, from an input signal s(t), two signals s1(t), s2(t) having an identical amplitude but phase shifted relative to each other, a second amplifier stage (3) for said signals s1(t), s2(t), and a third recombining stage (4) capable of summing the two signals s′1(t), s′2(t) obtained from second stage (3), characterized in that recombining stage (4) includes an assembly of acoustic wave resonators coupled to each other, some of these resonators referred to as “input resonators” being connected to the outputs of second stage (4) and others of these resonators referred to as “output resonators” being connected to the output terminals of the filter.

REFERENCES:
patent: 6552634 (2003-04-01), Raab
patent: 6741146 (2004-05-01), Ella
patent: 2005/0012570 (2005-01-01), Korden et al.
patent: 2005/0206476 (2005-09-01), Ella et al.
patent: 2006/0078067 (2006-04-01), Brobston
patent: 2007/0090892 (2007-04-01), Larson, III
patent: 2008/0129411 (2008-06-01), Beaudin et al.
patent: 2008/0297277 (2008-12-01), Meister et al.
patent: 2009/0096550 (2009-04-01), Handtmann et al.
patent: 2010/0272214 (2010-10-01), Wurm et al.
patent: 103 19 554 (2004-11-01), None
patent: 10 2004 049 499 (2006-04-01), None
Vinay Kulkarni et al., “Bandwidth Improvement Methods in Acoustically-Coupled Thin Film BAW Devices,” International Frequency Control Symposium and Exposition, 2006, IEEE, PI, Jun. 1, 2006, pp. 165-171.

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