Monolithic microwave integrated circuit

Abstract

Abstract PURPOSE:To integrate an IC chip, by designing a bias circuit such that a lumped-constant type inductor having a meander shape is constructed integrally with a capacitor provided by a capacity of a depletion layer. CONSTITUTION:Terminals 14 and 15 are arranged between patterns of meander- shaped ohmic electrodes 12 connected to a bias power supply terminal and a microwave circuit section 14, respectively. A Schottky electrode 15 formed of a Schottky metal is opposed to the ohmic electrode 14. Since a positive voltage VDD is applied to the terminal 14, a depletion layer 19 is created between the ohmic electrode 12 and the grounded Schottky electrode 16, which consequently creates a depletion layer capacity corresponding to the distance along which the electrodes are opposed to each other. According to this construction, since an inductor provided by the meander-type electrode is constructed integrally with a capacitor provided by said capacity of the depletion layer, the area of a bias circuit can be decreased.

Inventors

• 👤 Yasuro Mitsui
• 👤 三井　康郎

Bibliographic Details