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This work was supported by the Spanish Government, Ministry of Economy, National Program of Research, Development and Innovation under the project New Array Antenna Technologies and Digital Processing for the FUTURE Integrated Terrestrial and Space-based Millimeter Wave Radio Systems -UPM-InTerSpaCE (PID2020-112545RB-C51), and CDTI through the research project IDI-20210198 "Desarrollo de nuevos materiales dielectricos para antenas de telefonia movil 2+3+4+5 G" developed by Moyano Telsa and Universidad Politecnica de Madrid.

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Fast Radome Antenna Testing using Single-Cut and Slide Measurements

Publicado en:2020 14TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP 2020). - 2023-01-01 (), DOI: 10.23919/EuCAP57121.2023.10133183

Autores: Varela, Fernando Rodriguez; Maeso, Jorge Calatayud; Sun, Xiaoliang; Iraguen, Belen Galocha; Castaner, Manuel Sierra; Gonzalo, Jose Iglesias

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Cylindrical near-field measurements are suitable for Base Station (BTS) antennas testing due to their fanned-beam radiation patterns. BTS often incorporate large radomes that need to be tested as well to ensure they don't distort the antenna pattern or the reflection coefficient. This increases measurement time because the complete antenna becomes electrically larger. This paper presents a technique to minimize BTS radome testing. The technique is based on measuring the antenna near-field over a ring and a vertical slide to compute the one dimensional versions of the cylindrical and plane wave expansions, for the horizontal and vertical planes, respectively. We show how such reduced expansions can be used to retrieve the far-field pattern on the main planes E and H, as well as its gain. We report measurements with real BTS and radomes reducing the testing times from several hours to minutes.

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