In this paper, a novel method to decrease the sidelobe level (SLL) of conformal leaky-wave antennas (CLWAs) which are synthesized based on the holographic techniques is proposed. For this purpose, the holographic relation is modified by using the modulation index as a function of the spatial component corresponding to the propagation direction of the reference wave. In order to create a fascinating impedance matching between the launcher and the radiative metasurface, an initial phase is considered in the holographic formula. The designed one-dimensional (1D) sinusoidally modulated conformal antenna indicated a broadside fan beam at 18 GHz. At this frequency, about 3 dB SLL reduction was observed in the E-plane compared the traditinal holographic antenna. The measurement results indicated that the realized gain of the novel antenna at the design frequency was about 14.6dBi, and the SLL and the radiation efficiency of the antenna were −10.6 dB and 95%, respectively.

在本文中，提出了一种降低基于全息技术合成的共形漏波天线（CLWA）的旁瓣电平（SLL）的新方法。为此，通过使用调制指数作为与参考波的传播方向相对应的空间分量的函数来修改全息关系。为了在发射器和辐射超表面之间创建迷人的阻抗匹配，全息公式中考虑了初始相位。设计的一维 (1D) 正弦调制共形天线指示 18 GHz 的宽边扇形波束。在该频率下，与传统全息天线相比，在 E 平面中观察到约 3 dB SLL 降低。