Holographic mmW-Antennas With TE0 and TM0 Surface Wave Launchers for Frequency-Scanning FMCW-Radars
Holographic mmW-Antennas With TE0 and TM0 Surface Wave Launchers for Frequency-Scanning FMCW-Radars
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DOI：
10.1109/tap.2015.2400458
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发表时间：
2015-04-01
影响因子：
5.7
通讯作者：
Zwick, Thomas
中科院分区：
文献类型：
--
作者：
Rusch, Christian;Schaefer, Jochen;Zwick, Thomas
针对调频连续波(FMCW)雷达系统，提出了三种不同的平面全息天线。天线使用由平面表面波发射器产生的不同类型的表面波模式(TE模式和TM模式)。由于这些馈电，天线非常适合集成到毫米波系统中。根据全息理论计算了其辐射性能，并通过全波模拟和测量对计算结果进行了验证。采用人工磁导体(AMC)结构作为天线反射体，避免了TE0天线的双向辐射。这种新颖的方法使得全息天线具有很好的集成条件和高度定向和频率扫描的主瓣，并与同样单向的TM0模式天线进行了比较。
This paper presents three different kinds of planar holographic antennas optimized for the usage in frequency-modulated-continuous-wave (FMCW)-radar systems. The antennas use different kinds of surface-wave modes (TE- and TM-modes), created by planar surface-wave launchers. Due to these feeds the antennas are very well suited for integration into millimeter-wave-systems. The radiation performance is calculated on the basis of holographic theory and the results are verified by full-wave simulations and measurements. Bidirectional radiation of the TE0-antennas is avoided by using artificial-magnetic-conductor (AMC) structures as antenna reflectors. This novel approach allows a holographic antenna with great integration qualifications and a highly directive and frequency-scanning main lobe and is compared with the also unidirectional TM0-mode antenna.