2.5D Miniaturized Frequency Selective Rasorber with A Wide High-Transmission Passband

A broadband linear-to-circular transmission polarizer using a right-angled frequency selective surface is presented in this paper. The new proposed polarizer has both advantages of wide operational bandwidth and high transmission coefficients. To verify the design, a new polarizer working in X-band is optimized and fabricated. Experimental results show that the measured axial ratios lower than 3 dB range from 6.42 to 13.70 GHz, with low insertion loss. Meanwhile, the polarizer can operate over a broad range of frequencies from 6.75 to 10.75 GHz, when the incident angle increases to 25°.

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Design of broadband high-transmission frequency selective surface structure with micro-elements modulation

2016 CIE International Conference on Radar (RADAR) ◽

10.1109/radar.2016.8059548 ◽

2016 ◽

Author(s):

Xiaochun Liu ◽

Xiaoyu Pang ◽

Shining Sun ◽

Liang Fang

Keyword(s):

Surface Structure ◽

Frequency Selective Surface ◽

Transmission Frequency ◽

High Transmission ◽

Frequency Selective ◽

Micro Elements

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Frequency-Selective Rasorber With a Wide High-Transmission Passband Based on Multiple Coplanar Parallel Resonances

IEEE Antennas and Wireless Propagation Letters ◽

10.1109/lawp.2019.2962223 ◽

2020 ◽

Vol 19 (2) ◽

pp. 337-340 ◽

Cited By ~ 1

Author(s):

Lingling Wang ◽

Shaobin Liu ◽

Xiangkun Kong ◽

Haifeng Zhang ◽

Qiming Yu ◽

...

Keyword(s):

High Transmission ◽

Frequency Selective

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Dual-band beam steering THz antenna using active frequency selective surface based on graphene

EPJ Applied Metamaterials ◽

10.1051/epjam/2021004 ◽

2021 ◽

Vol 8 ◽

pp. 12

Author(s):

Yao-Jia Yang ◽

Bian Wu ◽

Yu-Tong Zhao ◽

Chi-Fan

Keyword(s):

Chemical Potential ◽

Beam Steering ◽

Large Angle ◽

Frequency Selective Surface ◽

Total Reflection ◽

Dual Band ◽

High Transmission ◽

Frequency Selective ◽

Radiation Beams ◽

Thz Antenna

A dual-band independently beam steering THz antenna is presented, which is composed of a broadband omnidirectional monopole source antenna surrounded by six hexagonal active frequency selective surface (AFSS) screens with switchable filtering response in two bands. By controlling the chemical potential from 0 eV to 0.5 eV, the AFSS screen can achieve the conversion between high transmission (ON state) and almost total reflection (OFF state) at two frequency ranges independently. Therefore, the radiation beams of the THz antenna in two bands can be steered from 360° large angle scanning and omnidirectional radiation with flexible combinations.

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