倪国旗, 刘曼霞. 圆柱共形介质埋藏微带天线设计与研究[J]. 电波科学学报, 2018, 33(2): 119-125. doi: 10.13443/j.cjors.2018020101
      引用本文: 倪国旗, 刘曼霞. 圆柱共形介质埋藏微带天线设计与研究[J]. 电波科学学报, 2018, 33(2): 119-125. doi: 10.13443/j.cjors.2018020101
      NI Guoqi, LIU Manxia. Design and research of dielectric embedded microstripantenna with cylindrical conformal[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2018, 33(2): 119-125. doi: 10.13443/j.cjors.2018020101
      Citation: NI Guoqi, LIU Manxia. Design and research of dielectric embedded microstripantenna with cylindrical conformal[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2018, 33(2): 119-125. doi: 10.13443/j.cjors.2018020101

      圆柱共形介质埋藏微带天线设计与研究

      Design and research of dielectric embedded microstripantenna with cylindrical conformal

      • 摘要: 将天线进行介质埋藏可解决传统天线裸露在空气中受到氧化腐蚀等问题, 同时增强天线的隐蔽性, 扩宽天线的带宽.共形天线不仅可以提供期望的天线性能, 还不会影响载体本身的机动性能.文章将介质埋藏和共形结合提出了圆柱共形介质埋藏微带天线, 并使用电磁仿真软件CST对该天线进行了设计优化和仿真实验, 同时制作了实物天线, 进行了测试.测试结果表明:该天线反射系数小于-10 dB的工作带宽为440 MHz, 比埋藏前的工作带宽340 MHz增加了29.4%;在工作频段内最大增益达到8.0 dB, 相比埋藏前的最大增益8.5 dB降低了0.5 dB, 但是该天线的增益还是达到实际天线要求的, 且增益降低幅度小.所设计天线在方向图、驻波比、阻抗匹配等性能上都满足实际条件, 并且具备更宽的半功率波束宽度.

         

        Abstract: Dielectric embedded antenna can solve the problem that the traditional antenna is oxidized with exposure in the air. At the same time, the concealment of the antenna is enhanced, especially the bandwidth of the antenna is widened. Conformal antennas can provide the desired antenna performance, and have no effect on the maneuverability of the carrier itself. In this paper, a microstrip dielectric embedded antenna with cylindrical conformal is proposed. The antenna is designed and simulated using the electromagnetic simulation software CST. The results show that the working bandwidth of the antenna is 440 MHz with reflection coefficient less than -10 dB increased by 29.4% compared with that of the unburied antenna with bandwidth of 340 MHz. The maximum gain in the operating band reaches 8.0 dB, which is 0.5 dB lower than the maximum gain of 8.5 dB of the general antenna, but the gain of the dielectric embedded antenna reaches the actual requirement of the antenna and the gain reduction is small. Microstrip dielectric embedded antenna with cylindrical conformal in the antenna pattern, standing wave ratio, impedance matching and other properties to meet the actual conditions, and have wider half-power beam width.

         

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