Phase Control and Calibration Characteristics of Optically Controlled Phased Array Antenna Feed Using Multiple SMFs

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  • TAKEUCHI Daiki
    Department of Electrical and Electronic Engineering, Meijo Univerisity
  • CHUJO Wataru
    Department of Electrical and Electronic Engineering, Meijo Univerisity
  • YAMAMOTO Shin-ichi
    National Institute of Information and Communications Technology
  • KOYAMADA Yahei
    Department of Media and Telecommunications Engineering, Ibaraki University

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Microwave/millimeter-wave phase and amplitude characteristics of the optically controlled phased array antenna with a different SMF for each antenna feed were measured. Suitable phases for the beam steering can be realized by the adjustment of the LD wavelength independently with multiple SMFs. In addition to the phase, amplitude of each antenna feed can be controlled stably using LD current without phase variation. Furthermore, effectiveness of the calibration method of the phased array using multiple SMFs by LD wavelength adjustment is experimentally verified. Excellent microwave/millimeter-wave phase characteristics using 2- and 3-element optically controlled phased array feed were experimentally demonstrated with calibration of the phases. Phase characteristics of the array using multiple SMFs were also compared with that using a single SMF experimentally.

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