(19)
(11) EP 0 208 441 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.08.1988 Bulletin 1988/31

(43) Date of publication A2:
14.01.1987 Bulletin 1987/03

(21) Application number: 86304728

(22) Date of filing: 19.06.1986
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 06.07.1985 GB 8517180

(71) Applicant: Wandel & Goltermann Limited
 ()

(72) Inventor:
  • Bristow, Robert Owen
     ()

   


(54) High frequency switched attenuator


(57) In a high-frequency switched attenuator comprising input and output connections (1,2), a signal by-pass path (8), an attentuator network (A), and a relay switch (5) having a first condition in which the input and output connections are interconnected by the by-pass path and a second condition in which the input and output connections are interconnected through the attentuator network, a compensation network (LC) comprising an inductive component (L) and a variable capacitive component (C) is connected between the input and output connections (1,2).





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