publication . Article . 2021

Verification of Phase Shifter Measurements of a Reflective Array Antenna

M. D. Parnes;
Open Access
  • Published: 29 Apr 2021 Journal: Journal of the Russian Universities. Radioelectronics, volume 24, pages 18-26 (issn: 1993-8985, eissn: 2658-4794, Copyright policy)
  • Publisher: St. Petersburg Electrotechnical University LETI
Abstract
Introduction. Large-size phased antenna arrays (PAA) frequently incorporate optical excitation schemes, whose main elements include the feed and the reflective aperture. In turn, the reflective aperture consists of several tens of thousands of radiators and phase shifters. Major distortions of the radiation pattern in reflective arrays occur due to phase errors, leading to a decrease in the gain and an increase in the side lobes of the radiation pattern. In the millimeter wavelength range, ferrite phase shifters can have an initial phase from 0 to 360 °, thus requiring measurements of the array elements following their assembly.Aim. To develop a method for evalu...
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