Herein, an extremely low‐profile and wideband array antenna is proposed whose height is 0.03 λ_low at the lowest operating frequency. The development of the proposed array antenna is described, and its performance is compared with those of conventional patch arrays, stacked patch arrays, planar ultrawideband modular antenna arrays, and tightly coupled dipole arrays (TCDAs). Furthermore, the impedance bandwidth is 98.2% at broadside radiation, and the overlapped bandwidth when scanning up to 30° is 95.9%. This high figure of merit is obtained by introducing a polarization convertor. Finally, the measured active VSWR and array gain of the fabricated 6 × 6 array antenna are discussed. The measured result is in good agreement with the simulated result.

中文翻译：

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使用TCDA和极化转换器的超薄型宽带阵列天线

在本文中，一个非常低轮廓和宽带阵列天线提出，其高度为0.03 λ_低在最低工作频率。描述了所提出的阵列天线的发展，并将其性能与常规贴片阵列，堆叠贴片阵列，平面超宽带模块化天线阵列和紧密耦合偶极子阵列（TCDA）进行了比较。此外，在宽边辐射下的阻抗带宽为98.2％，在扫描至30°时的重叠带宽为95.9％。这种高品质因数是通过引入偏振转换器获得的。最后，讨论了所制造的6×6阵列天线的有源VSWR和阵列增益。测量结果与模拟结果吻合良好。