Characteristics of a single-feed dual-frequency bow-tie microstrip antenna are studied. By using the variation method, simple formulas for resonant frequencies of the bow-tie microstrip antenna are derived. It is show...Characteristics of a single-feed dual-frequency bow-tie microstrip antenna are studied. By using the variation method, simple formulas for resonant frequencies of the bow-tie microstrip antenna are derived. It is shown that the dual-frequency ratio can be controlled easily by choosing the parameters of the antenna. This design gives compact antenna size and simple antenna structure. Experimental results are presented, verifying the validity of the design.展开更多
设计出一款可应用于RFID(Radio Frequency Identification)系统的5.8 GHz传统矩形微带天线,天线辐射贴片尺寸为15.74 mm×11.12 mm,天线的回波损耗(S11)的实测结果为-23.276 d B。此后,在矩形微带天线基础上进行设计改进,通过分别蚀...设计出一款可应用于RFID(Radio Frequency Identification)系统的5.8 GHz传统矩形微带天线,天线辐射贴片尺寸为15.74 mm×11.12 mm,天线的回波损耗(S11)的实测结果为-23.276 d B。此后,在矩形微带天线基础上进行设计改进,通过分别蚀刻15个超材料结构I型谐振环和6个超材料结构开口谐振环SRR(Split Resonant Ring),构造出两款新型小型化天线。与传统矩形天线相比,在保持方向性、最大增益等参数性能基本不变的条件下,基于超材料结构的天线辐射贴片尺寸分别为12.44mm×9.12 mm和11.74 mm×9.1 mm,相比传统矩形天线分别缩小了35.2%和41.82%,辐射贴片小型化效果明显,其回波损耗实测结果分别为-21.83 d B和-15.40 d B。展开更多
文摘Characteristics of a single-feed dual-frequency bow-tie microstrip antenna are studied. By using the variation method, simple formulas for resonant frequencies of the bow-tie microstrip antenna are derived. It is shown that the dual-frequency ratio can be controlled easily by choosing the parameters of the antenna. This design gives compact antenna size and simple antenna structure. Experimental results are presented, verifying the validity of the design.
文摘设计出一款可应用于RFID(Radio Frequency Identification)系统的5.8 GHz传统矩形微带天线,天线辐射贴片尺寸为15.74 mm×11.12 mm,天线的回波损耗(S11)的实测结果为-23.276 d B。此后,在矩形微带天线基础上进行设计改进,通过分别蚀刻15个超材料结构I型谐振环和6个超材料结构开口谐振环SRR(Split Resonant Ring),构造出两款新型小型化天线。与传统矩形天线相比,在保持方向性、最大增益等参数性能基本不变的条件下,基于超材料结构的天线辐射贴片尺寸分别为12.44mm×9.12 mm和11.74 mm×9.1 mm,相比传统矩形天线分别缩小了35.2%和41.82%,辐射贴片小型化效果明显,其回波损耗实测结果分别为-21.83 d B和-15.40 d B。
