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

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.
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01222040
Contributor : Pietro Maris Ferreira <>
Submitted on : Thursday, October 29, 2015 - 10:22:05 AM
Last modification on : Wednesday, September 16, 2020 - 5:45:25 PM

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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⟩

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