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

An original method to increase the tuning range of a monolithic-microwave integrated-circuit (MMIC) varactor diode is presented in this paper. An active circuit simulating a negative capacitance is connected to the varactor diode. This method allows to increase the varactor's tuning range more...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2001-12, Vol.49 (12), p.2425-2430
Main Authors: Kolev, S., Delacressonniere, B., Gautier, J.-L.
Format: Article
Language:English
Subjects:
Capacitance
Circuit optimization
Circuit simulation
Circuits
Diodes
Electronics
Engineering Sciences
HEMTs
Microwaves
MMICs
PHEMTs
Simulation
Tunable circuits and devices
Tuning
Varactor diodes
Varactors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An original method to increase the tuning range of a monolithic-microwave integrated-circuit (MMIC) varactor diode is presented in this paper. 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 and to compensate its series resistance at the same time. A MMIC simulating a negative capacitance have been successfully fabricated and measured. To the best of the authors' knowledge, this is the first realization of a MMIC simulating a negative capacitance.
ISSN:0018-9480
1557-9670
DOI:10.1109/22.971631