(19)
(11) EP 0 472 087 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.11.1992 Bulletin 1992/48

(43) Date of publication A2:
26.02.1992 Bulletin 1992/09

(21) Application number: 91113525.9

(22) Date of filing: 12.08.1991
(51) International Patent Classification (IPC)5: H01P 1/387
(84) Designated Contracting States:
CH DE ES FR GB IT LI SE

(30) Priority: 15.08.1990 US 568378

(71) Applicant: Hughes Aircraft Company
Los Angeles, California 90045-0066 (US)

(72) Inventors:
  • Talcott, Mark A.
    Torrance, California 90504 (US)
  • Poulson, Kim Alt
    Ridgecrest, California 93555 (US)
  • Chandi, Om P.
    Salt Lake City, Utah 84112 (US)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Maximilianstrasse 58
80538 München
80538 München (DE)


(56) References cited: : 
   
       


    (54) Common node reactance network for a broadband cross beam lumped-element circulator


    (57) A microwave circulator circuit having a multiple port lumped-element circulator, and a common node reactance network for coupling the lumped element circulator to the common ground plane of the microwave circuit with which the circulator circuit is utilized.






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