Abstract: In this paper, a high-isolation ultra-wideband (UWB) circularly polarized (CP) dual-element antenna array is introduced in this article. Firstly, a square planar spiral antenna that has ...
Abstract: In this paper, a 4 × 4 wideband linearly polarization (LP) antenna array is proposed by using planar dual-arm spiral structures. Wideband balun structures, composed of microstrip line-fed ...
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