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Beyond Chu's Limit with Floquet Impedance Matching.

08:00 EDT 18th October 2019 | BioPortfolio

Summary of "Beyond Chu's Limit with Floquet Impedance Matching."

Chu's limit determines the minimum radiation quality factor Q of an electrically small resonator, and hence its maximum operational bandwidth, which is inversely proportional to its volume. This bound imposes severe restrictions in several areas of technology, from wireless communications to nanophotonics and metamaterials. We show that a suitably tailored temporal modulation of the matching network, combined with proper detuning of the feeding impedance, can overcome this limit and enable radiation over broader bandwidths, which scale as 1/sqrt[Q], ensuring at the same time stability. Our findings open opportunities for communication systems, nanophotonics, and sensor technology.

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This article was published in the following journal.

Name: Physical review letters
ISSN: 1079-7114
Pages: 164102

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