Patents Examined by Stephen E. Lee
  • Filtering device with metal cavity provided with dielectric inserts
    Patent number: 6211752
    Abstract: A filter device including a metal cavity (1, 11) closed by two end walls (3a, 3b; 13, 13b) extending transversely relative to the axis of said cavity (1, 11) and at least two dielectric inserts (4a, 4b; 14a to 14d) defining a resonator (5, 15a, 15b) in said cavity, characterized in that it includes at least one coupling iris (7a, 7b; 17) which also extends transversely relative to said axis.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: April 3, 2001
    Assignee: Alcatel
    Inventors: Sandra Gendraud, Pierre Guillon, Serge Verdeyme