Global Patent Index - EP 0280379 A2

EP 0280379 A2 1988-08-31 - Dielectric or magnetic medium loaded antenna.

Title (en)

Dielectric or magnetic medium loaded antenna.

Title (de)

Mit dielektrischem oder magnetischem Medium belastete Antenne.

Title (fr)

Antenne chargée par un milieu diélectrique ou magnétique.

Publication

EP 0280379 A2 (EN)

Application

EP 88200345 A

Priority

  • JP 4644587 A
  • JP 5982787 A

Abstract (en)

A loaded antenna (11) comprises a wave source (12) of an arbitrary polarized wave, a reflector (13) disposed near the wave source (12), with the surface opposite to the wave source (12) limited in area, and a dielectric (14) disposed on the opposite side of the reflector across the wave source (12), at least with the surface opposite to the reflector (13) formed parallel to the reflector (13). By properly selecting the mutual interval among the dielectric (14), wave source (12) and reflector(13), the dimension and the dielectric constant of the dielectric (14), the vibration component in the running direction of the wave within the dielectric (14), the vibration component in the direction vertical to the running direction, and the vibration component between the reflector and dielectric are superposed, so that the electromagnetic field distribution in the vicinity of the dielectric (14) is made uniform. Thereby, high gain and high efficiency are realized, and the structure may be notably reduced in size.

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

H01Q 19/09

IPC 8 full level (invention and additional information)

H01Q 19/09 (2006.01)

CPC (invention and additional information)

H01Q 19/09 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family

EP 0280379 A2 19880831; EP 0280379 A3 19900425