2002•Unpublished venueRequires access

Using a negative capacitance to increase the tuning range of a varactor diode in MMIC technology

S. Kolev, B. Delacressonnière, Jean‐Luc Gautier

Abstract

An original method to increase the tuning range of a MMIC varactor diode is presented. An active circuit simulating a negative capacitance is connected to the varactor diode. This method allows to increase the varactor's tuning range more than ten times. A MMIC simulating a negative capacitance have been successfully fabricated and measured and we hope to be able to present measured results of a complete active varactor by the time of the symposium.

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Available abstract

Key concepts: Varicap, Capacitance, Monolithic microwave integrated circuit, Optoelectronics, Materials science, Diode, Electrical engineering, Electronic engineering