%0 Journal Article %T On the Application of Sparse Spherical Harmonic Expansion for Fast Antenna Far-Field Measurements %+ Institut d'Électronique et des Technologies du numéRique (IETR) %+ Laboratoire National de Métrologie et d'Essais [Trappes] (LNE ) %+ Centre National d'Etudes Spatiales - Direction Des Lanceurs. (CNES) %A Mezieres, N. %A Fuchs, Benjamin %A Le Coq, Laurent %A Lerat, J.-M. %A Contreres, R. %A Fur, G.L. %Z Centre National d'Etudes Spatiales, CNESSciences et Technologies de l'information et de la Communication, Université Paris-Saclay, STIC DSMinistère de l'Education Nationale, de l'Enseignement Superieur et de la Recherche, MESREuropean Commission, ECEuropean Regional Development Fund, FEDER %< avec comité de lecture %@ 1536-1225 %J IEEE Antennas and Wireless Propagation Letters %I Institute of Electrical and Electronics Engineers %V 19 %N 5 %P 746-750 %8 2020-05 %D 2020 %R 10.1109/LAWP.2020.2978170 %K Antenna measurements %K antenna radiation patterns %K compressed sensing %K sparse recovery %K spherical vector wave expansion %Z Engineering Sciences [physics]Journal articles %X The characterization of 3-D antenna radiation patterns is time-consuming. The field acquisition duration can be dramatically reduced by leveraging the sparsity of the radiated field spectrum into spherical harmonic basis. Only a small number of measurements points are then necessary to identify the few significant spherical coefficients describing accurately the antenna pattern. In practice, this compressed sensing-based procedure requires carefully chosen settings to work efficiently. The fitting to the data and the field sampling strategy are two crucial points in order to ensure a successful fast antenna measurement procedure. The techniques with experimental validations are proposed to ensure a reliable field interpolation. Estimations of savings in acquisition time are also provided to show the interest of the proposed method. %G English %2 https://univ-rennes.hal.science/hal-02865296/document %2 https://univ-rennes.hal.science/hal-02865296/file/M%C3%A9zi%C3%A8res%20et%20al-2020-On%20the%20Application%20of%20Sparse%20Spherical%20Harmonic.pdf %L hal-02865296 %U https://univ-rennes.hal.science/hal-02865296 %~ UNIV-NANTES %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ CNES %~ IETR %~ SUP_IETR %~ STATS-UR1 %~ CENTRALESUPELEC %~ UR1-HAL %~ UR1-MATH-STIC %~ UR1-UFR-ISTIC %~ LNE %~ IETR-BEAMS %~ IETR-ADH %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ TEST-HALCNRS %~ UR1-MATH-NUM %~ NANTES-UNIVERSITE %~ UNIV-NANTES-AV2022