Classical microstrip patch antenna fabricated on a dielectric substrate suffers from poor gain, efficiency, and high cross polarization due to the automatic excitation of TM ₀ surface wave. It also radiates strong fields along the horizon which is susceptible to multiple-input–multiple-output (MIMO) or array configurations. In view of this, a separate class of circular microstrip antenna known as the reduced surface wave (RSW) circular patch antenna has been proposed with a pair of shorting strips. Unlike earlier RSW-inspired antennas that mainly confirmed their ability for the successful reduction in the mutual coupling between array elements, here, and the enhancement of radiation properties is considered.

中文翻译：

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减少表面波激励的圆形微带天线，可同时改善辐射特性

由于TM ₀表面波的自动激发，在介电基板上制造的经典微带贴片天线的增益，效率和交叉极化都很高 。它还沿地平线辐射出强磁场，容易受到多输入多输出（MIMO）或阵列配置的影响。鉴于此，已经提出了具有一对短路带的被称为减小表面波（RSW）圆形贴片天线的另一类圆形微带天线。与早期的受RSW启发的天线不同，此处主要证实了它们具有成功减少阵列元件之间相互耦合的能力，并考虑了辐射特性的增强。