Lossless broad-band monolithic microwave active inductors |
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Authors: | Hara S Tokumitsu T Aikawa M |
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Affiliation: | ATR Opt. & Radio Commun. Res. Lab., Kyoto; |
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Abstract: | Lossless broadband microwave active inductors for general-purpose use in microwave circuits are proposed, and their characteristics are discussed. These active inductors are composed of a common-source cascode FET and a feedback FET, and operate in a wide frequency range with very low series resistance. Their low-loss characteristics are demonstrated by simulation and experimental results. A maximum Q factor of 65 is obtained. Theoretically, it can reach infinity. The inductance value can be controlled by an external voltage control |
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