Global Patent Index - EP 1938451 A1

EP 1938451 A1 20080702 - DEVICE AND METHOD FOR AMPLIFYING PULSED RF SIGNALS

Title (en)

DEVICE AND METHOD FOR AMPLIFYING PULSED RF SIGNALS

Title (de)

EINRICHTUNG UND VERFAHREN ZUR VERSTÄRKUNG GEPULSTER HF-SIGNALE

Title (fr)

DISPOSITIF ET PROCEDE POUR AMPLIFIER DES SIGNAUX RF IMPULSIONNELS

Publication

EP 1938451 A1 20080702 (FR)

Application

EP 06793081 A 20060830

Priority

  • EP 2006065837 W 20060830
  • FR 0508876 A 20050830

Abstract (en)

[origin: FR2890258A1] The device has a laterally mused metal oxide semiconductor (LDMOS) transistor whose gate (G) receives a frequency modulated signal and supplied by a gate voltage. A drain (D) of the transistor is connected to a DC supply by a low power switch (10) of an amplifier. The switch is controlled by a modulated signal transmission synchronizing signal. A rapid bidirectional surge suppressor (12) suppresses voltage value comprised between a peak supply of the drain and a drain source breakdown voltage. A control device controls opening and closing of the switch. An independent claim is also included for a method of amplifying pulsed radio frequency signals.

IPC 8 full level

H03F 1/02 (2006.01); H03F 3/193 (2006.01)

CPC (source: EP US)

H03F 1/025 (2013.01 - EP US); H03F 3/189 (2013.01 - EP US); H03F 3/1935 (2013.01 - EP US); H03F 3/72 (2013.01 - EP US); H03F 2200/451 (2013.01 - EP US); H03F 2200/504 (2013.01 - EP US); H03F 2200/507 (2013.01 - EP US)

Citation (search report)

See references of WO 2007025995A1

Citation (examination)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

FR 2890258 A1 20070302; FR 2890258 B1 20071012; CN 101297476 A 20081029; EP 1938451 A1 20080702; JP 2009506696 A 20090212; US 2009195314 A1 20090806; US 8044714 B2 20111025; WO 2007025995 A1 20070308

DOCDB simple family (application)

FR 0508876 A 20050830; CN 200680040235 A 20060830; EP 06793081 A 20060830; EP 2006065837 W 20060830; JP 2008528519 A 20060830; US 6531806 A 20060830