Global Patent Index - EP 1070388 A1

EP 1070388 A1 2001-01-24 - COMMUNICATION DEVICE

Title (en)

COMMUNICATION DEVICE

Title (de)

KOMMUNIKATIONSVORRICHTUNG

Title (fr)

DISPOSITIF DE COMMUNICATION

Publication

EP 1070388 A1 (EN)

Application

EP 00905019 A

Priority

  • EP 00905019 A
  • EP 0000885 W
  • EP 99200389 A

Abstract (en)

[origin: EP1028522A1] The invention relates to a communication device including a power amplifier for amplifying a modulated high frequency carrier signal comprising a resonance circuit arranged between resonance circuit input means and antenna means. To improve the power added efficiency of the power amplifier, the resonance circuit input means is provided with an excitation circuit for supplying an excitation signal to the resonance circuit phase and/or frequency coupled with the modulated high frequency carrier signal and having a duty cycle significantly less than 50%. <IMAGE>

IPC 1-7 (main, further and additional classification)

H03F 1/02; H03F 3/217

IPC 8 full level (invention and additional information)

H03F 1/02 (2006.01); H03F 3/217 (2006.01)

CPC (invention and additional information)

H03F 3/2176 (2013.01); H03F 1/0222 (2013.01)

Citation (search report)

See references of WO 0048305A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1028522 A1 20000816; EP 1070388 A1 20010124; WO 0048305 A1 20000817

INPADOC legal status


2002-03-27 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20000911

2001-01-24 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE