Back to Search
Start Over
Beyond Chu's Limit with Floquet Impedance Matching.
- Source :
-
Physical Review Letters . 10/18/2019, Vol. 123 Issue 16, p1-1. 1p. - Publication Year :
- 2019
-
Abstract
- 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/√Q, ensuring at the same time stability. Our findings open opportunities for communication systems, nanophotonics, and sensor technology. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 123
- Issue :
- 16
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 139265895
- Full Text :
- https://doi.org/10.1103/PhysRevLett.123.164102