| 371 | 4 | 64 |
| 下载次数 | 被引频次 | 阅读次数 |
为了满足实际工程应用需求，设计了一种超宽阻带的带通三维频率选择表面(Three-Dimensional Frequency Selective Surface, 3-D FSS)。该3-D FSS单元结构由3层金属导体和填充介质组成，3层金属导体从外到内依次为零厚度金属方筒、有厚度金属方筒和实心金属块。相邻的零厚度金属方筒之间构成平行板波导(Parallel Plate Waveguide, PPW)传播路径，3层金属导体之间形成2个短方同轴线(Square Coaxial Line, SCL)结构。通过在PPW传播路径中加载一对金属化过孔，构成2个1/4波长谐振单元，在缝隙耦合下分裂为奇模和偶模2种谐振模式，产生具有2个传输极点的通带。通过H形槽缝隙和2个短SCL结构，使得电磁波发生反射，形成具有3个传输零点的超宽阻带。通过对传输零极点处的电场矢量分析和结构参数研究，阐述了所提出的3-D FSS的工作原理。仿真结果显示，提出的3-D FSS具有双极化、宽阻带和良好的角度稳定性等优势。
Abstract：A bandpass Three-Dimensional Frequency Selective Surface(3-D FSS) with ultra-wide stopband is designed for meeting the requirement of practical engineering application.The unit cell of the proposed 3-D FSS is composed of three layers of metal conductor and filling dielectric, and three layers of metal conductor are zero thickness square tube, thick square tube and solid metal block from the outside to the inside.The Parallel Plate Waveguide(PPW) propagation path is formed by two adjacent zero thickness square tubes, and two short Square Coaxial Lines(SCL) are created by three layers of metal conductors.By loading a pair of metallized through holes in PPW propagation path, two quarter wavelength resonant elements are formed.It splits into even-/odd-resonant modes by the slot electromagnetic coupling, resulting in a passband with two transmission poles.The electromagnetic wave is reflected and an ultra-wide stopband with three transmission zeros is introduced by using an H-shaped slot and two short SCL structures.The working principle of the proposed 3-D FSS is described by analyzing the electric field vector at the transmission zeros/poles, as well as studying the structural parameters.The simulation results show that the proposed 3-D FSS has the advantages of dual polarization, wide stopband and good angular stability.
[1] MUNK B A.Frequency Selective Surfaces:Theory and Design[M].New York:Wiley,2000.
[2] 叶杨阳.频率选择表面天线罩研究[D].西安：西安电子科技大学，2021.
[3] 钱建波，朱建平，董进.一种高选择性三阶带通三维频率选择表面[J].无线电工程，2022,52(4):645-650.
[4] 杨霞，于正永，陆华丽，等.基于金属化过孔的三维频率选择表面研究[J].南京师大学报(自然科学版),2021,44(1):20-27.
[5] HUANG H,SHEN Z,OMAR A A.3-D Absorptive Frequency Selective Reflector for Antenna Radar Cross Section Reduction[J].IEEE Transactions on Antennas and Propagation,2017,65(11):5908-5917.
[6] 曹文博，麻晢乂培，黄小忠，等.基于单层频率选择表面的轻质宽频吸波体设计[J].电子元件与材料，2022,41(2):180-185.
[7] GURRALA P,OREN S,LIU P,et al.Fully Conformal Square-patch Frequency-selective Surface Toward Wearable Electromagnetic Shielding[J].IEEE Antennas and Wireless Propagation Letters,2017,16:2602-2605.
[8] LI Q Y,GAO J C,XIE G,et al.A Novel Miniaturized-element Frequency Selective Surface with a Second-order Bandpass Response[J].IEICE Electronics Express,2018,15(4):20171257.
[9] JIN C,LV Q,WANG J,et al.Capped Dielectric Inserted Perforated Metallic Plate Bandpass Frequency Selective Surface[J].IEEE Transactions on Antennas and Propagation,2017,65(12):7129-7136.
[10] RASHID A K,SHEN Z,LI B.An Elliptical Bandpass Frequency Selective Structure Based on Microstrip Lines[J].IEEE Transactions on Antennas and Propagation,2012,60(10):4661-4669.
[11] ZHU J P,TANG W C,WANG C,et al.Dual-polarized Bandpass Frequency-selective Surface with Quasi-elliptic Response Based on Square Coaxial Waveguide[J].IEEE Transactions on Antennas and Propagation,2018,66(3):1331-1339.
[12] LUO G Q,HONG W,LAI Q H,et al.Design and Experimental Verification of Compact Frequency-selective Surface with Quasi-elliptic Bandpass Response[J].IEEE Transactions on Microwave Theory and Techniques,2007,55(12):2481-2487.
[13] YU Z Y,ZHU J P,WANG C,et al.3-D Dual-polarized Bandpass Frequency Selective Surface with Quasi-elliptic Response Based on Rectangular Waveguide Cavity[J].IEICE Electronics Express,2019,16(12):20190178.
[14] LI B,HUANG X,ZHU L,et al.Bandpass Frequency Selective Structure with Improved Out-of-Band Rejection Using Stacked Single-layer Slotlines[J].IEEE Transactions on Antennas and Propagation,2018,66(11):6003-6014.
[15] JIN C,LV Q,MITTRA R.Dual-polarized Frequency-selective Surface with Two Transmission Zeros Based on Cascaded Ground Apertured Annular Ring Resonators[J].IEEE Transactions on Antennas and Propagation,2018,66(8):4077-4085.
[16] LI D,LI T W,LI E P,et al.A 2.5-D Angularly Stable Frequency Selective Surface Using Via-based Structure for 5G EMI Shielding[J].IEEE Transactions on Electromagnetic Compatibility,2018,60(3):768-775.
[17] LI B,SHEN Z.Three-dimensional Dual-polarized Frequency Selective Structure with Wide Out-of-Band Rejection[J].IEEE Transactions on Antennas and Propagation,2014,62(1):130-137.
[18] ZHAO Z Z,ZHANG A,CHEN X M,et al.Bandpass FSS with Zeros Adjustable Quasi-elliptic Response[J].IEEE Antennas and Wireless Propagation Letters,2019,18(6):1184-1188.
基本信息:
中图分类号:TN713
引用信息:
[1]何晓凤,朱建平,姜严.一种超宽阻带的带通三维频率选择表面[J].无线电工程,2022,52(12):2245-2252.
基金信息:
江苏省高等学校自然科学研究项目资助(19KJB510002)~~