A high-Q tunable grounded negative inductor for small antennas and broadband metamaterials

Author

Avignon-Meseldzija, Emilie ; Ferreira, Pietro Maris ; Lekkas, Konstantinos ; Boust, Fabrice

Author_Institution

Dept. of Mixed Signal Circuits & Syst., CentraleSupelec, Gif-sur-Yvette, France

fYear

2015

fDate

7-10 June 2015

Firstpage

1

Lastpage

4

Abstract

This paper presents a broadband high-Q tunable negative inductor based on a gyrator topology. In order to reduce the risk of instability and to increase circuit bandwidth, simple inverters are used as transconductance amplifier. A complete stability analysis and careful circuit design details using SOI 180 nm technology are presented. Post-layout simulations results show a negative inductance variation from -24 nH to -13.7 nH. For a bandwidth from 10 MHz to 1 GHz, inductance value error remains under 12.5 %. Circuit power consumption is 16 mW; and area consumption is 120 μm by 84 μm.

Keywords

amplifiers; broadband antennas; inductors; metamaterial antennas; broadband metamaterials; complete stability analysis; gyrator topology; high-Q tunable grounded negative inductor; inductance value error; negative inductance variation; small antennas; transconductance amplifier; Broadband antennas; Gyrators; Inductors; Integrated circuit modeling; Metamaterials; Stability analysis; gyrator; negative inductance; non-Foster circuits; stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

New Circuits and Systems Conference (NEWCAS), 2015 IEEE 13th International

Conference_Location

Grenoble

Type

conf

DOI

10.1109/NEWCAS.2015.7182001

Filename

7182001