(19)
(11) EP 0 432 729 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
15.07.1992 Bulletin 1992/29

(43) Date of publication A2:
19.06.1991 Bulletin 1991/25

(21) Application number: 90123813.9

(22) Date of filing: 11.12.1990
(51) International Patent Classification (IPC)5: H01P 1/213, H01P 7/10
(84) Designated Contracting States:
DE FR GB

(30) Priority: 14.12.1989 JP 325536/89
21.12.1989 JP 331611/89

(71) Applicant: MURATA MANUFACTURING CO., LTD.
Nagaokakyo-shi Kyoto-fu 226 (JP)

(72) Inventors:
  • Nishikawa, Toshio
    Nagaokakyo-shi, Kyoto-fu (JP)
  • Ishikawa, Youhei
    Nagaokakyo-shi, Kyoto-fu (JP)
  • Takehara, Koichi
    Nagaokakyo-shi, Kyoto-fu (JP)

(74) Representative: Schoppe, Fritz, Dipl.-Ing. 
Patentanwalt, Georg-Kalb-Strasse 9
D-82049 Pullach
D-82049 Pullach (DE)


(56) References cited: : 
   
       


    (54) Radio frequency signal combining/sorting apparatus


    (57) A radio frequency signal combining/sorting apparatus which includes a plurality of channel filters (F1, --- and F64) which allow band regions of respective transmission channels to pass through them, isolators (IN1, --- and IN64) connected to respective inputs of the channel filters, a plurality of sets of power composing circuits (JU1,JU2,JU3,JU4) each including branch lines for composing outputs of the channel filters as one output, and hybrid circuits (H1 to H3) arranged to compose outputs per two sets of the power composing circuits (JU1,JU2,JU3,JU4). The band regions of the respective channel filters are selected in such relation that the band regions of the respective channel filters of the same power composing circuit are spaced from each other to a largest extent.






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