McKinley, AF;
White, TP;
Maksymov, IS;
Catchpole, KR;
(2012)
The analytical basis for the resonances and anti-resonances of loop antennas and meta-material ring resonators.
Journal of Applied Physics
, 112
(9)
, Article 094911. 10.1063/1.4764104.
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Abstract
Interest in the electromagnetic properties of loop structures has surged with the recent appearance of split-ring resonator meta-materials (SRRs) and nano-antennas. Understanding the resonances, anti-resonances, and harmonics of these loops is key to understanding their response to a wide range of excitation wavelengths. We present the classical analytical solution for the input impedance of a loop structure with circumference on the order of the wavelength, and we show how to identify these resonances from the function. We transform the classical solution into a new RLC formulation and show that each natural mode of the loop can be represented as a series resonant circuit, such that the full response function can be resolved by placing all of these circuits in parallel. We show how this formulation applies to SRRs.
| Type: | Article |
|---|---|
| Title: | The analytical basis for the resonances and anti-resonances of loop antennas and meta-material ring resonators |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1063/1.4764104 |
| Publisher version: | https://doi.org/10.1063/1.4764104 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1460952 |
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