Wang, K., Chen, M. Z., Ma, J., et al. 2024. Performance analysis of the mutual coupling effect on Phased Array Feeds. Astronomical Techniques and Instruments, 1(4): 211−217. https://doi.org/10.61977/ati2024019.
Citation: Wang, K., Chen, M. Z., Ma, J., et al. 2024. Performance analysis of the mutual coupling effect on Phased Array Feeds. Astronomical Techniques and Instruments, 1(4): 211−217. https://doi.org/10.61977/ati2024019.

Performance analysis of the mutual coupling effect on Phased Array Feeds

  • A phased array feed (PAF) is a type of receiving array that places phased array antennas on the focal plane of a radio telescope to expand its field of view and improve observation efficiency. Owing to the mutual coupling effect between elements caused by a tightly arranged feed array, which changes the performance of a PAF, this paper presents a 7 × 7 rectangular feed array model for a 25 m reflector telescope. By adjusting the element spacings, the performance of a PAF with different spacings is comprehensively analyzed with respect to the mutual coupling effect via performance statistics and comparison. This research aims to provide a reference for the preliminary design of a related PAF.
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