论文名称“A Wideband Circularly Polarized Transmitarray Using Matched Dipole-Spiral Elements”，研究提出了一种适用于线圆转化宽带接收/发射型透射单元的共轭匹配设计方法。接收单元采用了宽带线极化偶极子天线，同时发射单元则为宽带圆极化螺旋天线，二者通过中心通孔激励。其中通过螺旋单元的旋转进行了阵面的相位补偿。为了验证设计，本文构建了一个厚度为0.24波长的635单元规模的透射阵天线。结果表明，在工作频段内，该阵列的峰值增益为29.3 dBi，峰值口径效率为55.5%。1 dB增益带宽范围为22 GHz至28.5 GHz，相对带宽为25.7%。工作主要完成人：郑斌，樊勇，程钰间。

论文链接：https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10379102

Abstract—In this study, a wideband receive-and-transmit element suitable for linear-to-circular polarization applications is proposed, utilizing a combined field-circuit and conjugate matching design approach. The receiver comprises a wideband, linearly polarized kite-shaped dipole, while the transmitter is a wideband, circularly polarized spiral antenna. The two elements' excitation probes are interconnected through a central via, allowing for continuous rotation of the spiral element for phase compensation. To test the proposed design, a 0.24-λ0-thick transmitarray with 635 elements was constructed and its performance assessed. The results indicated a peak gain of 29.3dBi and peak aperture efficiency of 55.5% within the band. The 1dB gain bandwidth ranged from 22 GHz to 28.5 GHz, corresponding to a bandwidth of 25.7%.

Index Terms—Circular polarization, dipole-spiral element, transmitarray, wideband matching.