所属单位：电子信息工程学院
发表刊物：ieee int. conf. comput. electromagn., iccem
摘要：a low profile omnidirectional circular polarized reconfigurable antenna for beidou application is proposed in this paper. this antenna is based on the first-order resonance mode of epsilon negative transmission line. to form a circularly polarized wave in the far field, the vertical and horizontal polarization is generated by a parallel circular cavity and three dual arc arms, respectively. only 6 pin diodes are needed to alter the left-handed circularly polarized (lhcp) or righthanded circularly polarized (rhcp) omnidirectional radiation state. three-dimensional electromagnetic simulation software ansoft hfss and rf circuit simulation software agilent ads are used for co-simulation and optimization. it is shown that the proposed antenna can meet the beidou navigation bds-l s band requirement well whether at the left or right circularly polarized state. the omnidirectional average axial ratio at two states are 1.24 db and 1.25 db with 16.7 % and 19.8 % 3 db axial ratio bandwidth, respectively. the thickness of antenna is only 2 mm (0.016 λ0) and simply processed without a dual feeding structure and 90 phase shifter. © 2018 ieee.
是否译文：否
发表时间：2018-10-17
合写作者：tang, dan,刘少斌
第一作者：孔祥鲲
通讯作者：孔祥鲲,tang, dan