A low scattering slot antenna based on broadband polarization conversion metasurface. Issue 9 (14th May 2019)

• Record Type: Journal Article
• Authors: Chen, Jiaqing; Zhao, Yongjiu; Jing, Xiang; Ge, Yue; Chen, Xiaofeng
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 29:Issue 9(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-05-14
• Subjects: gain enhancement -- low scattering -- polarization conversion metasurface (PCM) -- slot antenna; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.21828
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: An ultrawide band polarization conversion metasurface (PCM) is proposed to reduce the reflection of a slot antenna. The proposed PCM can convert a linearly polarized incident wave to the reflected wave with a 90° rotation. By arranging the PCM around the antenna symmetrically, an ideal phase cancelation is achieved. To verify the design, a metasurface‐slot antenna is simulated and measured to confirm the proposed PCM for a significant reduction of the reflection. Results show that the normal reflection of the proposed antenna at boresight is reduced more than 10 dB over an ultrawide band. In addition, 2 dB enhancement of the gain is achieved compared with a reference antenna which has the same dimensions. Meanwhile, the small influence is observed for the antenna radiation by introducing the PCM.