Transmitter with improved power efficiency

Details Transmitter with improved power efficiency Transmitter with improved power efficiency

2006-11-16

2009-12-08

Jackson, Blane J (Department: 2618)

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

C455S091000

Reexamination Certificate

active

07630693

ABSTRACT:
A power amplifier (PA) line-up (210) and a method (500) for more efficiently utilizing battery power are disclosed. PA line-up (210) includes a driver (220), a matching circuit (214), and a PA (230) coupled to a matching circuit (216), wherein matching circuit (216) is configured to be coupled to a filter (260). PA line-up (210) includes a transmission line (260) coupled to matching circuit (216) and a switch (262) configured to selectively couple driver (220) to either matching circuit (214) or matching circuit (216) such that signal (205) is capable of by-passing PA (230) when signal (205) does not need to be amplified by PA (230). Furthermore, PA line-up (210) may include a second transmission line (250) so that signal (205) is capable of by-passing a driver (220) and a PA (230) when signal (205) does not need to be amplified by driver (220) and PA (230).

REFERENCES:
patent: 5909643 (1999-06-01), Aihara
patent: 6307169 (2001-10-01), Sun et al.
patent: 6307452 (2001-10-01), Sun
patent: 6384353 (2002-05-01), Huang et al.
patent: 6397090 (2002-05-01), Cho
patent: 6507475 (2003-01-01), Sun
patent: 6625430 (2003-09-01), Doherty
patent: 6706548 (2004-03-01), Liu
patent: 6794101 (2004-09-01), Liu et al.
patent: 6806767 (2004-10-01), Dow
patent: 6809593 (2004-10-01), Newman et al.
patent: 7009454 (2006-03-01), Rategh et al.
patent: 2002/0086643 (2002-07-01), Leipala
patent: 2005/0079825 (2005-04-01), Omori et al.
patent: 2005/0143024 (2005-06-01), Sung et al.
patent: 2005/0146379 (2005-07-01), Sugiyama et al.
patent: 2006/0009174 (2006-01-01), Dunn
patent: 2007/0218849 (2007-09-01), Harel et al.
De Graauw, A.J.M and Steenken, P.G., R-F MEMS for Single Line-Up Front-End Modules, Phillips Semiconductors, Nijmegen, Phillips Research, Eindhoven, The Netherlands.
Fukuda, A., et al. A 0.905 GHz Wide-Range 1 W-Class Reconfigurable Power Amplifier Employing RF-MEMS Switches, NTT DoCo, Inc. Yokosuka-City, Kanagawa, Japan.
International Search Report and Written Opinion for correlating PCT Patent Application No. PCT/US07/79702 dated Apr. 23, 2008.

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