Details
| Original language | English |
|---|---|
| Article number | 6473830 |
| Pages (from-to) | 2964-2971 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 61 |
| Issue number | 6 |
| Publication status | Published - 2013 |
| Externally published | Yes |
Abstract
In this paper, we present a method to reconstruct the modal current distribution on an antenna from the radiated far field and general knowledge about the modes involved. The method leads to good results if the radiation mechanism of the antenna can be approximated by the current distribution on a simplified structure. The current distribution of the simplified structure is decomposed into its characteristic modes and the related modal far field is calculated. Assuming that the far field of the actual antenna contains the same modes, their weighting coefficients are calculated by comparing the far field of the actual antenna to the modal far field of the simplified structure. It can be shown that the weighting coefficients of all significant modes can be reconstructed with good accuracy even for complex real structures such as mobile phones.
Keywords
- Antenna radiation pattern, antenna theory, eigenvalues and eigenfunctions, mobile antennas, numerical analysis
ASJC Scopus subject areas
- Engineering(all)
- Electrical and Electronic Engineering
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In: IEEE Transactions on Antennas and Propagation, Vol. 61, No. 6, 6473830, 2013, p. 2964-2971.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Reconstruction of the characteristic modes on an antenna based on the radiated far field
AU - Safin, Eugen
AU - Manteuffel, Dirk
PY - 2013
Y1 - 2013
N2 - In this paper, we present a method to reconstruct the modal current distribution on an antenna from the radiated far field and general knowledge about the modes involved. The method leads to good results if the radiation mechanism of the antenna can be approximated by the current distribution on a simplified structure. The current distribution of the simplified structure is decomposed into its characteristic modes and the related modal far field is calculated. Assuming that the far field of the actual antenna contains the same modes, their weighting coefficients are calculated by comparing the far field of the actual antenna to the modal far field of the simplified structure. It can be shown that the weighting coefficients of all significant modes can be reconstructed with good accuracy even for complex real structures such as mobile phones.
AB - In this paper, we present a method to reconstruct the modal current distribution on an antenna from the radiated far field and general knowledge about the modes involved. The method leads to good results if the radiation mechanism of the antenna can be approximated by the current distribution on a simplified structure. The current distribution of the simplified structure is decomposed into its characteristic modes and the related modal far field is calculated. Assuming that the far field of the actual antenna contains the same modes, their weighting coefficients are calculated by comparing the far field of the actual antenna to the modal far field of the simplified structure. It can be shown that the weighting coefficients of all significant modes can be reconstructed with good accuracy even for complex real structures such as mobile phones.
KW - Antenna radiation pattern
KW - antenna theory
KW - eigenvalues and eigenfunctions
KW - mobile antennas
KW - numerical analysis
UR - http://www.scopus.com/inward/record.url?scp=84878733117&partnerID=8YFLogxK
U2 - 10.1109/TAP.2013.2251312
DO - 10.1109/TAP.2013.2251312
M3 - Article
AN - SCOPUS:84878733117
VL - 61
SP - 2964
EP - 2971
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
SN - 0018-926X
IS - 6
M1 - 6473830
ER -