A Variable Negative-Inductance Integrated Circuit at UHF Frequencies

Author

White, Carson R. ; May, Jason W. ; Colburn, Joseph S.

Author_Institution

HRL Labs., LLC, Malibu, CA, USA

Volume

22

Issue

1

fYear

2012

Firstpage

35

Lastpage

37

Abstract

A floating variable Negative Impedance Inverter (NIl) circuit is proposed that is derived from Linvill´s unbalanced negative impedance converter. A negative-inductance Integrated Circuit (IC) has been realized using the IBM 8 HP BiCMOS process with an inductance that tunes from -64 to -40 nH. The IC is short-circuit-stable (which has been verified by experiment) and is dc coupled at the terminals, making it directly applicable to susceptance cancellation for slot antennas and artificial magnetic conductors. This letter reports the circuit topology, measurement technique, and measured data.

Keywords

BiCMOS integrated circuits; UHF frequency convertors; impedance convertors; inductance; slot antennas; BiCMOS process; NIl circuit; UHF frequencies; artificial magnetic conductor; circuit topology; floating variable negative impedance inverter; floating variable negative-inductance integrated circuit; measurement technique; slot antenna; unbalanced negative impedance converter; Circuit stability; Impedance; Inductance; Inductors; Integrated circuit modeling; Stability analysis; Active antennas; active inductors; impedance matching; non-Foster circuits; tunable circuits and devices;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2011.2175718

Filename

6107597