Abstract
In this paper, physical limitations on the directivity D and Q-factor Q are derived for antennas of arbitrary shape. The quotient D/Q is shown to be bounded from above by the antenna volume and certain shape coefficients in terms of the eigenvalues of the high-contrast polarizability dyadic. The theory is exemplified by numerical results for the half-wave antenna with astonishing agreement.
| Original language | English |
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| Pages | 1-3 |
| Publication status | Published - 2007 |
| Event | International Symposium on Electromagnetic Theory, 2007 - Ottawa, Canada Duration: 2007 Jul 26 → 2007 Jul 28 |
Conference
| Conference | International Symposium on Electromagnetic Theory, 2007 |
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| Abbreviated title | URSI |
| Country/Territory | Canada |
| City | Ottawa |
| Period | 2007/07/26 → 2007/07/28 |
Subject classification (UKÄ)
- Electrical Engineering, Electronic Engineering, Information Engineering