(19) |
 |
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(11) |
EP 0 208 441 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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03.08.1988 Bulletin 1988/31 |
(43) |
Date of publication A2: |
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14.01.1987 Bulletin 1987/03 |
(22) |
Date of filing: 19.06.1986 |
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(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 |
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() |
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(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).