TY - GEN
T1 - Fast irregular antenna field transformations above perfectly conducting ground planes
AU - Mauermayer, Raimund A.M.
AU - Eibert, Thomas F.
N1 - Publisher Copyright:
© 2016 European Association of Antennas and Propagation.
PY - 2016/5/31
Y1 - 2016/5/31
N2 - Near-field measurements above a perfectly electrically conducting ground plane require an appropriate consideration of ground effects in the subsequent reconstruction of equivalent sources for the device under test and the transformation into the far-field. In this paper, the fast irregular antenna field transformation algorithm is enabled to handle this kind of near-field measurements. For this purpose, the image principle is applied to the spectral plane wave representations of the equivalent sources on the various levels of the octree in order to incorporate the ground effects into the multilevel plane wave based field transformation operator. The octree for the spatial organization of the sources is, thus, not even extended below the ground and a high computational efficiency together with the known flexibility of the hierarchical field translations to arbitrarily located nearfield measurement points above the ground plane is achieved. Results of the transformation approach are presented for numerical examples and show its applicability to automotive antenna tests.
AB - Near-field measurements above a perfectly electrically conducting ground plane require an appropriate consideration of ground effects in the subsequent reconstruction of equivalent sources for the device under test and the transformation into the far-field. In this paper, the fast irregular antenna field transformation algorithm is enabled to handle this kind of near-field measurements. For this purpose, the image principle is applied to the spectral plane wave representations of the equivalent sources on the various levels of the octree in order to incorporate the ground effects into the multilevel plane wave based field transformation operator. The octree for the spatial organization of the sources is, thus, not even extended below the ground and a high computational efficiency together with the known flexibility of the hierarchical field translations to arbitrarily located nearfield measurement points above the ground plane is achieved. Results of the transformation approach are presented for numerical examples and show its applicability to automotive antenna tests.
KW - FIAFTA
KW - antenna
KW - field transformation
KW - image principle
KW - near-field measurement
UR - https://www.scopus.com/pages/publications/84979234409
U2 - 10.1109/EuCAP.2016.7481231
DO - 10.1109/EuCAP.2016.7481231
M3 - Conference contribution
AN - SCOPUS:84979234409
T3 - 2016 10th European Conference on Antennas and Propagation, EuCAP 2016
BT - 2016 10th European Conference on Antennas and Propagation, EuCAP 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th European Conference on Antennas and Propagation, EuCAP 2016
Y2 - 10 April 2016 through 15 April 2016
ER -