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所属单位：电子信息工程学院

发表刊物：IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION

关键字：Active frequency selective surfaces (AFSSs) bias network multifunctional PIN diode

摘要：This paper proposes a 2-b multifunctional active frequency selective surface (MAFSS) whose structure is made up of two metallic layers printed on both sides of an F4BME substrate, measuring 320 x 320 x 0.8 mm(3). The PIN diodes, embedded on two metallic layers, are controlled through two independent sets of external dc bias network. No additional feeder lines are considered necessary within the MAFSS array, which weakens the bias network's negative impact on the transmission characteristics of the MAFSS. Using an innovative and effective diode switching technique, two functions (electromagnetic switch and polarization selection) and thus four working states (dual-polarized bandpass for code "00," dual-polarized shielding for code "11," TE wave selection for code "10," and TM wave selection for code "01") have been realized. The equivalent circuit method and the surface current analysis have been used for a better understanding of the physical principles of the design. A prototype of the proposed structure has been fabricated and measured. The measurements have shown a good agreement between the simulated and the measured results, demonstrating thereby that the proposed structure can give excellent performance. Using the results of extensive numerical and experimental studies, the proposed structure has also been proved to give stable performance, with respect to different incident angles and wave polarizations around LTE-2.1 GHz.

ISSN号：0018-926X

是否译文：否

发表时间：2017-06-01

合写作者：Li, Huangyan,王毅

通讯作者：曹群生