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Simple and Tunable MNM by Figure of Eight Resonator and Its Application to Microwave Isolator
Shota KOMATSU Toshiro KODERA
IEICE TRANSACTIONS on Electronics
Publication Date: 2016/10/01
Online ISSN: 1745-1353
Type of Manuscript: BRIEF PAPER
artificial magnetic gyrotropy, non-reciprocity, magnet-less magnetic metamaterial (MNM), isolator, resonator, traveling-wave,
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Magnet-less non-reciprocal metamaterial (MNM) synthesise artificial magnetic gyrotropy by metal ring resonator with unilateral component insertion. Clear advantage to natural magnetic material is full integrated circuit ingredient compatibility but still suffers from drawbacks of consumption power in active component and footprint of ring resonator. A new MNM structure by a varactor inserted figure of eight resonator is introduced, which enables reduction of active components by half and even smaller footprint to the original simple ring resonator structure in addition to frequency tunability.