Title:
HIGH FREQUENCY INTEGRATED CIRCUIT
Document Type and Number:
Japanese Patent JP2788838
Kind Code:
B2
Abstract:
PURPOSE: To provide the high frequency integrated circuit having an adjustable matching circuit.
CONSTITUTION: A signal line 1 is short-circuited to a ground 3 through a capacitor 2 like an RF. This signal line is connected to a bias supply point 4. One electrode of a capacitor 5a for adjustment is connected to the ground 3. At first, the terminal of a short-circuit stub is at an RF short-circuit point. At this time, for exaple, bonding points 7a and 7b are connected by a wire to shorten the effective length of the short-circuit stub. Further, bonding points 8a and 8b are connected by a wire to shorten the effective length of the short- circuit stub more. The impedance of a matching circuit is changed by this operation to adjust the characteristic of the high frequency integrated circuit.
Inventors:
MARUHASHI KENICHI
Application Number:
JP12918693A
Publication Date:
August 20, 1998
Filing Date:
May 31, 1993
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
H01P1/00; H01P3/02; H01P3/08; H01P5/02; H01P5/04; (IPC1-7): H01P1/00; H01P3/02; H01P3/08; H01P5/02
Domestic Patent References:
| JP4281601A | ||||
| JP376301A | ||||
| JP585101U |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)
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