Rohde & Schwarz and Greenerwave Demonstrate Fast ESA Antenna Characterization
Rohde & Schwarz and Greenerwave have successfully completed a joint measurement study demonstrating a rapid and precise method for characterizing Electronically Steerable Array (ESA) antennas. The collaboration utilized Rohde & Schwarz’s R&S®TS8991 over-the-air measurement system and R&S®ZNA vector network analyzer to test Greenerwave’s 50 cm Ku-band SATCOM antenna, which employs Reconfigurable Intelligent Surfaces (RIS) technology. Traditionally, testing such large apertures requires cumbersome far-field chambers or time-consuming Compact Antenna Test Ranges (CATR). However, this near-field approach recorded the complete radiation pattern across ten frequencies in just 32 minutes. The results showed high accuracy, with deviations of typically 0.3 dB and a maximum of 1 dB compared to simulation models and CATR results. This breakthrough offers a practical alternative for SATCOM manufacturers, significantly reducing test cycles and development costs while maintaining reliability. The solution is applicable not only to SATCOM systems but also to broadband, IoT, and backhaul antennas requiring flexible beam control. By enabling faster validation in laboratory environments, this technology supports the efficient development of modern communication infrastructure for LEO, MEO, and GEO orbits.
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Rohde & Schwarz and Greenerwave Demonstrate Fast ESA Antenna Characterization
Rohde & Schwarz and Greenerwave have successfully completed a joint measurement study demonstrating a rapid and precise method for characterizing Electronically Steerable Array (ESA) antennas. The collaboration utilized Rohde & Schwarz’s R&S®TS8991 over-the-air measurement system and R&S®ZNA vector network analyzer to test Greenerwave’s 50 cm Ku-band SATCOM antenna, which employs Reconfigurable Intelligent Surfaces (RIS) technology. Traditionally, testing such large apertures requires cumbersome far-field chambers or time-consuming Compact Antenna Test Ranges (CATR). However, this near-field approach recorded the complete radiation pattern across ten frequencies in just 32 minutes. The results showed high accuracy, with deviations of typically 0.3 dB and a maximum of 1 dB compared to simulation models and CATR results. This breakthrough offers a practical alternative for SATCOM manufacturers, significantly reducing test cycles and development costs while maintaining reliability. The solution is applicable not only to SATCOM systems but also to broadband, IoT, and backhaul antennas requiring flexible beam control. By enabling faster validation in laboratory environments, this technology supports the efficient development of modern communication infrastructure for LEO, MEO, and GEO orbits.
CPM Defence Network – News: Verteidigung und Wehrtechnik