Three-dimensional band-pass frequency-selective structure with multiple transmission zeros

2012 ◽  
Author(s):  
Bo Li ◽  
Zhongxiang Shen
Keyword(s):  
Three Dimensional ◽  
Transmission Zeros ◽  
Band Pass ◽  
Frequency Selective ◽  
Multiple Transmission

A Third-Order Bandpass Three-Dimensional Frequency Selective Surface with Multiple Transmission Zeros

2021 ◽  
Vol 35 (12) ◽  
pp. 1548-1555
Author(s):  
Zhengyong Yu ◽  
Wanchun Tang
Keyword(s):  
Electromagnetic Coupling ◽  
Three Dimensional ◽  
Equivalent Circuit Model ◽  
Frequency Selective Surface ◽  
Unit Cell ◽  
Third Order ◽  
Transmission Zeros ◽  
Working Principle ◽  
Frequency Selective ◽  
Multiple Transmission

We present a third-order bandpass three-dimensional frequency selective surface (3D FSS) with multiple transmission zeros in this paper. The unit cell of the proposed 3D FSS consists of an air-filled square waveguide and a cuboid dielectric block with three concentric metallic square loops. Due to its inner electromagnetic coupling in the unit cell, this FSS provides a flat passband with three transmission poles, a wide out-of-band rejection with three transmission zeros, and high frequency selectivity. In order to explain the working principle, an equivalent circuit model is established and investigated. Finally, an FSS prototype is fabricated and measured, and the results exhibit good stability for both TE and TM polarizations under incident angles from 0° to 50°. Besides, this FSS has a relatively compact unit cell.

Dual-Band 3-D Frequency Selective Surface With Multiple Transmission Zeros

2019 ◽  
Vol 18 (4) ◽  
pp. 596-600 ◽  
Author(s):  
Jianping Zhu ◽  
Zhongyin Hao ◽  
Cheng Wang ◽  
Zhengyong Yu ◽  
Cheng Huang ◽  
...  
Keyword(s):  
Frequency Selective Surface ◽  
Band 3 ◽  
Dual Band ◽  
Transmission Zeros ◽  
Frequency Selective ◽  
Multiple Transmission

scholarly journals 3D FSS with multiple transmission zeros and pseudo elliptic response

2019 ◽  
Vol 8 (3) ◽  
pp. 923-932
Author(s):  
Bimal Raj Dutta ◽  
Binod Kumar Kanaujia ◽  
Chhaya Dalela
Keyword(s):  
Three Dimensional ◽  
Frequency Selective Surface ◽  
Pass Band ◽  
Strip Line ◽  
Frequency Range ◽  
Spatial Filters ◽  
Electric Conductor ◽  
Practical Applications ◽  
Transmission Zeros ◽  
Multiple Transmission

The three-dimensional frequency selective surface (3D FSS) with band reject multiple transmission zeros and pseudo-elliptic response is designed from two-dimensional (2D) periodic array of shielded micro strip lines to realize wide out-of–band radio wave rejection. The 3D FSS array consists of multimode cavities whose coupling with air can be controlled to obtain a desired frequency range. The proposed FSS with shorting via to ground exhibits pseudo-elliptic band-reject response in the frequency range from 6GHz to 14GHz. As the plane wave of linear polarization incidents perpendicularly to the shielded micro strip line with perfect electric conductor (PEC) and perfect magnetic conductor (PMC) boundary walls, two quasi-TEM modes are obtained known as air mode and substrate mode. The first 3D FSS design is a combination of two or more resonators. Furthermore, second 3D FSS design with three shorting vias result more elliptic band reject frequency response and a pass band transmission pole. All in phase resonators of design give transmission poles and out of phase combination of resonators give transmission zeros respectively. The proposed 3D FSS is designed and simulated using Ansys HFSS software. These designs exhibit an improved performance for many practical applications such as antenna sub-reflector, and spatial filters.

A novel high-selective bandpass frequency selective surface with multiple transmission zeros

2014 ◽  
Vol 28 (17) ◽  
pp. 2197-2209 ◽  
Author(s):  
Jialin Yuan ◽  
Shaobin Liu ◽  
Borui Bian ◽  
Xiangkun Kong ◽  
Haifeng Zhang ◽  
...  
Keyword(s):  
Frequency Selective Surface ◽  
Transmission Zeros ◽  
Frequency Selective ◽  
Multiple Transmission

scholarly journals Elliptical BandPassThree Dimensional Frequency Selective Surface with Multiple Transmission Zeros

2018 ◽  
Vol 12 (3) ◽  
pp. 1020
Author(s):  
Bimal Raj Dutta ◽  
Binod Kumar Kanaujia ◽  
Chhaya Dalela
Keyword(s):  
Plane Wave ◽  
Incident Angle ◽  
Frequency Selective Surface ◽  
Unit Cell ◽  
Long Distance ◽  
Band Frequency ◽  
Microstrip Lines ◽  
Transmission Zeros ◽  
Band Pass ◽  
Frequency Selective

An elliptic band pass response three-dimensional Frequency Selective Surface (3D FSS) is designed from a single unit cell of 2D array of two shielded microstrip lines. The designed FSS provides pseudo-elliptic band-pass frequency response (5.4 – 9.6) GHz with its application in long-distance radio telecommunications and space communications etc. The four transmission zeros at 5.4GHz, 9.6GHz, 12.4GHz and 15GHz provides wide out-of-band frequency rejection. The 3D FSS is independent of the variations in the incident angle of the plane wave up to 60 degree. Each unit cell is a combination of two shielded microstrip lines with one having an air gap and the other one having in between rectangular metallic plate. When a TE polarized plane wave incidents perpendicular to the perfect electric conductor (PEC) boundary walls shielded microstrip lines, it results in two quasi-TEM modes namely air and substrate mode. The 3D FSS consists of multiple resonators with a multimode cavity having number of propagating modes. These resonating modes in phase provide transmission poles and when out of phase give transmission zeros. The 3D FSS structure is simulated using Ansys HFSS software with improved performance over 2DFSS, for many practical applications such as antenna sub-reflector, radomes and spatial filters.

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