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Evaluation of the Available Directivity of a Radiating Structure in Terms of Its Characteristic Mode Content.
- Source :
-
IEEE Transactions on Antennas & Propagation . Oct2019, Vol. 67 Issue 10, p6686-6691. 6p. - Publication Year :
- 2019
-
Abstract
- A quantity called available directivity is defined for a radiating structure in terms of its characteristic mode content. It is shown how its maximum value can be evaluated when a certain number of such modes are considered to be excited with appropriate modal excitation coefficients. The achievable directivity is found by constraining the associated quality factor. This provides a more precise way of determining the prospective directivity of a structure than the usual estimates in terms of the spherical wave modes related to the smallest sphere enclosing the structure. [ABSTRACT FROM AUTHOR]
- Subjects :
- *SPHERICAL waves
*ANTENNA feeds
*ANTENNA arrays
*QUALITY factor
Subjects
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 67
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 139077204
- Full Text :
- https://doi.org/10.1109/TAP.2019.2925184