Double Dielectric-Slab-Filled Waveguide Phase Shifter
作者： F. Arndt , A. Frye , M. Wellnitz , R. Wirsing
DOI: 10.1109/TMTT.1985.1133008
关键词:
摘要: A field theory method based on the orthogonal expansion into eigenmodes is presented for design of double dielectric-slab-filled waveguide phase shifters with linearly tapered sections. Prototypes 90° differential shift reference to a corresponding empty same length achieved typically about +-4° error and less than -30-dB input reflection within +-5-percent bandwidth, WR 102-band (7-11 GHz) through 28-band (26.5-40 waveguides. Design curves shifts 12.25°, 22.5°, 45°, 90°, 180°, 270° are given. Utilizing compensation effect dispersive behavior dielectric-filled waveguides, only +-1° +-8.5-percent bandwidth. Further investigations include composite shifters, mechanical lateral displacement, tolerance influences. An experimental shifter 14-GHz midband frequency shows good agreement between measurements.
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