Global Patent Index - EP 1753084 B1

EP 1753084 B1 20110824 - Ferroelectric slot antenna

Title (en)

Ferroelectric slot antenna

Title (de)

Ferroelektrische Schlitzantenne

Title (fr)

Antenne à fentes ferroélectrique

Publication

EP 1753084 B1 20110824 (EN)

Application

EP 06123190 A 20020404

Priority

  • EP 02718438 A 20020404
  • US 28309301 P 20010411
  • US 90463101 A 20010713
  • US 91275301 A 20010724
  • US 92773201 A 20010808
  • US 92713601 A 20010810

Abstract (en)

[origin: EP1753084A2] A family of FE dielectric-tuned slot antennas and a method for frequency tuning a wireless communications antenna are provided. The method comprises: forming a radiator (504); forming a dielectric with ferroelectric material proximate to the radiator (506) forming a counterpoise (502); forming a slot (508); applying a voltage to the ferroelectric material; in response to applying the voltage, generating a dielectric constant; and, in response to the dielectric constant, communicating electromagnetic fields at a resonant frequency. Some aspects of the method further comprise: varying the applied voltage; and, modifying the resonant frequency in response to changes in the applied voltage. Modifying the resonant frequency includes forming an antenna with a variable operating frequency responsive to the applied voltage. Alternately stated, forming an antenna with a variable operating frequency includes forming an antenna with a predetermined fixed characteristic impedance, independent of the resonant frequency.

IPC 8 full level

H01Q 9/04 (2006.01); H01Q 9/16 (2006.01); H01Q 9/30 (2006.01); H01Q 13/02 (2006.01); H01Q 13/06 (2006.01); H01Q 13/20 (2006.01); H01Q 13/22 (2006.01)

CPC (source: EP)

H01Q 13/10 (2013.01); H01Q 13/106 (2013.01); H01Q 13/12 (2013.01)

Citation (examination)

Designated contracting state (EPC)

DE ES FR GB IE IT

DOCDB simple family (publication)

EP 1753084 A2 20070214; EP 1753084 A3 20080227; EP 1753084 B1 20110824

DOCDB simple family (application)

EP 06123190 A 20020404