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Dual-beam and dual-mode circularly polarized antenna based on substrate integrated waveguide technology
Microwave and Optical Technology Letters ( IF 1.5 ) Pub Date : 2021-07-26 , DOI: 10.1002/mop.33007 Shuai Tian 1 , Hongyan Tang 1 , Xin Guan 1 , Wenchengzhang Xu 1 , Yiming Yu 1
Microwave and Optical Technology Letters ( IF 1.5 ) Pub Date : 2021-07-26 , DOI: 10.1002/mop.33007 Shuai Tian 1 , Hongyan Tang 1 , Xin Guan 1 , Wenchengzhang Xu 1 , Yiming Yu 1
Affiliation
This article presents a dual-beam dual-mode circularly polarized (CP) antenna based on substrate integrated waveguide (SIW) technology. The antenna is etched with an octagon slot on upper surface of a SIW rectangular cavity, which has size of . Four square patches with the same size and a cross-shaped patch are placed in the slot. Experiments are conducted both on simulation and measurement, showing the proposed antenna can radiate two beams simultaneously at 10.9 GHz. One beam is left-handed circular polarization (LHCP) pointing at phi = −45 and theta = 30°, the other beam is right-handed circular polarization (RHCP) pointing at phi = +45° and theta = 40°. The measured axial ratio (AR) bandwidths are 1.46% (10.8–10.96 GHz) and 1.19% (10.82–10.95 GHz) for LHCP and RHCP beams respectively. Both CP beams can achieve 20 beamwidth for 3-dB AR. The measured results are in good agreement with the simulations.
中文翻译:
基于基片集成波导技术的双波束双模圆极化天线
本文介绍了一种基于基板集成波导 (SIW) 技术的双波束双模圆极化 (CP) 天线。天线在SIW矩形腔的上表面蚀刻八角形槽,尺寸为. 插槽中放置四个大小相同的方形贴片和一个十字形贴片。对仿真和测量进行了实验,表明所提出的天线可以在 10.9 GHz 下同时辐射两个波束。一束是左旋圆偏振 (LHCP),指向 phi = −45并且 theta = 30°,另一束是右旋圆偏振 (RHCP),指向 phi = +45° 和 theta = 40°。LHCP 和 RHCP 光束的测量轴比 (AR) 带宽分别为 1.46% (10.8–10.96 GHz) 和 1.19% (10.82–10.95 GHz)。两个 CP 光束都可以达到 203-dB AR 的波束宽度。测量结果与模拟非常吻合。
更新日期:2021-09-01
中文翻译:
基于基片集成波导技术的双波束双模圆极化天线
本文介绍了一种基于基板集成波导 (SIW) 技术的双波束双模圆极化 (CP) 天线。天线在SIW矩形腔的上表面蚀刻八角形槽,尺寸为. 插槽中放置四个大小相同的方形贴片和一个十字形贴片。对仿真和测量进行了实验,表明所提出的天线可以在 10.9 GHz 下同时辐射两个波束。一束是左旋圆偏振 (LHCP),指向 phi = −45并且 theta = 30°,另一束是右旋圆偏振 (RHCP),指向 phi = +45° 和 theta = 40°。LHCP 和 RHCP 光束的测量轴比 (AR) 带宽分别为 1.46% (10.8–10.96 GHz) 和 1.19% (10.82–10.95 GHz)。两个 CP 光束都可以达到 203-dB AR 的波束宽度。测量结果与模拟非常吻合。