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임세훈 ( Se Hun Im ),안병철 ( Bierng Chearl Ahn ) 충북대학교 산업과학기술연구소 2015 산업과학기술연구 논문집 Vol.29 No.1
In this paper, a broadband cross Yagi-Uda antenna with dual polarization is proposed. The proposed antenna consists of reflector, director and a novel folded dipole feeder. After a single Yagi-Uda antenna is designed, a final design of the cross Yagi antenna is obtained by placing another Yagi in the orthogonal plane. The proposed cross Yagi-Uda antenna structure has dual-polarized directional radiation over a wide frequency and. The proposed antenna has reflection of less than -10dB and coupling between orthogonal polarizations of less than -20dB over 1.5-2.9GHz, and gain of 6.17dBi at 2.4GHz.