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A low scattering slot antenna based on broadband polarization conversion metasurface
Author(s) -
Chen Jiaqing,
Zhao Yongjiu,
Jing Xiang,
Ge Yue,
Chen Xiaofeng
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21828
Subject(s) - optics , antenna (radio) , broadband , radiation pattern , polarization (electrochemistry) , antenna measurement , coaxial antenna , reflection (computer programming) , physics , telecommunications , computer science , chemistry , programming language
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.