In this work, the authors report the operation of a cylindrical dielectric resonator antenna (CDRA) in the high gain HEM13δ mode, for the first time. This mode, excited with a standard microstrip slot, radiates in the broadside direction with gain in the range of 8−10 dBi. It is shown that through feed optimization, the HEM13δ mode can be excited dominantly by suppressing the fundamental HEM11δ mode of the CDRA. Detailed simulation studies show that the HEM13δ mode is supported by cylindrical dielectric resonators with an aspect ratio (radius to height ratio or a/d) >1, and it resonates at a frequency approximately 2.2 times that of the fundamental HEM11δ mode. The above features of the HEM13δ mode CDRA can be used as approximate design rules. For a CDRA with dielectric constant ɛr = 24, diameter 2a = 19.43 mm, and height d = 7.3 mm (a/d = 1.3), the HEM13δ mode is excited at 6.125 GHz with a peak gain of 10.14 dBi in simulation. Corresponding values from prototype measurement are 5.981 GHz and 9.62 dBi, respectively for the resonant frequency and the gain, verifying the simulation.

中文翻译：

---

使用简单槽激励的圆柱形介质谐振器天线的高增益宽边模式操作

在这项工作中，作者报告了圆柱形介质谐振器天线 (CDRA) 在高增益 HEM 中的操作13δ模式，第一次。该模式由标准微带槽激发，沿宽边方向辐射，增益范围为 8-10 dBi。结果表明，通过饲料优化，HEM13δ模式可以通过抑制基本 HEM 来主要激发11δCDRA 模式。详细的模拟研究表明，HEM13δ模式由具有纵横比（半径与高度比或一种/d) >1，它的谐振频率约为基本 HEM 的 2.2 倍11δ模式。HEM的上述特点13δ模式 CDRA 可用作近似设计规则。对于具有介电常数的 CDRAεr= 24，直径 2一种= 19.43 毫米，高度d= 7.3 毫米（一种/d= 1.3)，HEM13δ模式在 6.125 GHz 处激发，仿真中峰值增益为 10.14 dBi。原型测量的对应值分别为 5.981 GHz 和 9.62 dBi，分别用于谐振频率和增益，验证了仿真。