Summary: | 碩士 === 國立臺灣大學 === 電信工程學研究所 === 100 === A novel wideband dual-sense circularly polarized antenna array is presented is this thesis. The antenna array module consists of two rectangular aperture antennas of linearly polarized radiation and a directional coupler employed for the 90° phase feed in a sequential rotation scheme. First, we reviewed the directional coupler basic theory and proposed two coupler designs. Also, the design procedure was given, in terms of the design of the radiating elements using rectangular aperture antennas. Lastly we integrated the coupler and the antennas as a sequential rotation array. Both simulated and measured results were included, shows good consistency in this thesis.
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