A high-Q Tunable Grounded Negative Inductor for Small Antennas and Broadband Metamaterials

Emilie Avignon-Meseldzija (1, 2) , Pietro Maris Ferreira (1) , Lekkas Konstantinos (1) , Fabrice Boust (3, 4)

1 GeePs - Laboratoire Génie électrique et électronique de Paris
2 SONDRA - Sondra, CentraleSupélec, Université Paris-Saclay
3 ONERA - The French Aerospace Lab [Palaiseau]
4 SONDRA - Sondra, CentraleSupélec, Université Paris-Saclay (COmUE)

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.

Mots clés: gyrator; stability analysis; non-Foster circuits; negative inductance

Domaines: Micro et nanotechnologies/Microélectronique; Electronique

Emilie Avignon-Meseldzija, Pietro Maris Ferreira, Lekkas Konstantinos, Fabrice Boust. A high-Q Tunable Grounded Negative Inductor for Small Antennas and Broadband Metamaterials. 2015 IEEE 13th International New Circuits and Systems Conference (NEWCAS 2015), Jun 2015, Grenoble, France. ⟨10.1109/NEWCAS.2015.7182001⟩. ⟨hal-01222040⟩