Global Patent Index - EP 0818848 A3

EP 0818848 A3 2000-01-12 - Active receiving antenna

Title (en)

Active receiving antenna

Title (de)

Aktive Empfangsantenne

Title (fr)

Antenne réceptrice active

Publication

EP 0818848 A3 (DE)

Application

EP 97111125 A

Priority

DE 19628125 A

Abstract (en)

[origin: EP0818848A2] The slot antenna (1) is terminated at the rear by a hollow chamber filled with a dielectric. The antenna is connected via leads (L1,L2), which provide a phase correction, to a low noise preamplifier (LNA) which provides an output to the slotted structure. A defined phase angle for the received waves can be set up by using different lengths for the leads. The preamplifier and the leads are arranged inside the hollow chamber.

IPC 1-7

H01Q 23/00; H01Q 1/32; H01Q 13/10

IPC 8 full level

H01Q 1/32 (2006.01); H01Q 13/10 (2006.01); H01Q 23/00 (2006.01)

CPC

H01Q 13/10 (2013.01); H01Q 1/3275 (2013.01); H01Q 23/00 (2013.01)

Citation (search report)

  • [YA] US 4682180 A 19870721 - GANS MICHAEL J [US]
  • [A] EP 0707357 A1 19960417 - WANG PIERRE [FR]
  • [A] DE 3922165 A1 19910117 - TELEFUNKEN SYSTEMTECHNIK [DE]
  • [YA] MOYER H P ET AL: "ACTIVE CAVITY-BACKED SLOT ANTENNA USING MESFET'S", IEEE MICROWAVE AND GUIDED WAVE LETTERS,US,IEEE INC, NEW YORK, vol. 3, no. 4, pages 95-97, XP000358562, ISSN: 1051-8207
  • [A] PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01 28 February 1995 (1995-02-28)

DCS

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

DOCDB simple family

EP 0818848 A2 19980114; EP 0818848 A3 20000112; EP 0818848 B1 20040303; DE 19628125 A1 19980115; US 5905471 A 19990518