Yin Jia-Yuan, Du Xiao Yu, Ning Yuan, Deng Jing-Ya, Guo Li-Xin
Appl Opt. 2021 Sep 20;60(27):8466-8471. doi: 10.1364/AO.434411.
To simplify the design of a beam scanning device, we present a simple and compact structure to realize the frequency scanning characteristic based on a hybrid waveguide consisting of a spoof surface plasmon polariton (SSPP) transmission line and half-mode substrate integrated waveguide (HMSIW). Additionally, the radiation characteristic is implemented using periodically modulated slots. The scanning angle range covers backward to forward directions without an open stop band at the broadside. The results from both simulations and measurements show that the total scanning angle reaches 117° for a frequency range of 9-11.4 GHz. Owing to the inherent features of the HMSIW and the unique design of the SSPP transmission line, the entire structure is only 139.2×15 in size. Moreover, the average gain is approximately 6.5 dBi. Overall, the compact size and good performance ensure that the proposed design is favorable for planar integrated communication systems.
为简化波束扫描装置的设计，我们提出一种简单紧凑的结构，以基于由仿表面等离激元极化子（SSPP）传输线和半模基片集成波导（HMSIW）组成的混合波导实现频率扫描特性。此外，通过周期性调制缝隙来实现辐射特性。扫描角度范围覆盖从后向到前向方向，在宽边处没有开放阻带。仿真和测量结果表明，在9 - 11.4 GHz频率范围内，总扫描角度达到117°。由于HMSIW的固有特性和SSPP传输线的独特设计，整个结构尺寸仅为139.2×15。此外，平均增益约为6.5 dBi。总体而言，紧凑的尺寸和良好的性能确保了所提出的设计有利于平面集成通信系统。
