Considerations About Antenna Pattern Measurements of 2-D Aperture Synthesis Radiometers

Abstract—Accurate measurement of the antenna voltage pat-terns of large-aperture synthesis radiometers is critical in order to achieve good radiometric accuracy, and a very time consuming and expensive task. Measurement requirements and a tradeoff study relating radiometric accuracy degradation and number of elements to be measured are presented. Index Terms—Antenna pattern, interferometry, measurements, radiometry