This paper investigates two novel polarization- and pattern-diversity glass dielectric resonator antennas (DRAs), both of which are for tri-band (2.4, 5.2, and 5.8 GHz) wireless fidelity (WiFi) applications. It also investigates what type of diversity antenna is most suitable for WiFi router applications by comparing the two DRAs, along with a new space-diversity glass DRA. These three diversity glass DRAs are also compared with a commercial space-diversity monopole pair to benchmark the performance of the glass DRA in WiFi router applications. In our polarization-diversity antenna, a double-port feeding scheme is developed to excite different DRA modes. The frequencies of the DRA modes are tuned by using a stepped DRA. For the pattern-diversity design, a stacked DRA is introduced to broaden the bandwidth for both the conical and broadside radiation modes. All three of the new diversity antennas were fabricated and measured to verify the simulations. In our experiment, the bit error rate (BER) of the three diversity glass antennas and the reference space-diversity monopole antenna was also measured, and the results are compared and discussed. It is found that the polarization-diversity omnidirectional DRA has the most stable BER among the three.

本文研究了两种新型偏振分集和方向图分集玻璃介质谐振器天线 (DRA)，这两种天线均适用于三频（2.4、5.2 和 5.8 GHz）无线保真 (WiFi) 应用。它还通过比较两种 DRA 以及一种新的空间分集玻璃 DRA 来研究哪种类型的分集天线最适合 WiFi 路由器应用。这三种分集玻璃 DRA 还与商业空间分集单极对进行了比较，以衡量玻璃 DRA 在 WiFi 路由器应用中的性能。在我们的极化分集天线中，开发了双端口馈电方案以激发不同的 DRA 模式。DRA 模式的频率通过使用阶梯式 DRA 进行调谐。对于模式多样性设计，引入堆叠式 DRA 以扩大锥形和宽边辐射模式的带宽。制造并测量了所有三个新的分集天线以验证模拟。在我们的实验中，还测量了三个分集玻璃天线和参考空间分集单极天线的误码率（BER），并对结果进行了比较和讨论。发现偏振分集全向DRA在三者中具有最稳定的BER。