| 123 | 0 | 198 |
| 下载次数 | 被引频次 | 阅读次数 |
针对宽毫米波频段的高功率合成应用，设计了一种基于脊间隙波导(Ridge Gap Waveguide, RGW)的宽带径向功率合成器。该合成器由2层金属板组成，下层金属板中心处采用同轴线进行馈电，能量经由上方多个金属圆台反射进入到各个径向传输线实现功率等分。径向传输线采用RGW结构，即在金属脊两侧的金属底板上布有销钉型电磁带隙(Electromagnetic Band-Gap, EBG)结构，可以减小各通道间的相互耦合，且无需对上下金属板进行焊接。仿真结果表明，该合成器工作频率为14.7～37.5 GHz,反射系数小于-15 dB,传输系数约为-6.1 dB。测试结果与仿真结果吻合良好。
Abstract：A wideband radial power combiner based on Ridge Gap Waveguide(RGW) is designed for high-power combining applications in the wide millimeter-wave frequency band.The combiner consists of two metallic plates, with the center of the lower plate fed by a coaxial line.The energy is reflected by multiple metallic conical structures positioned above the plate, and directed into the radial transmission lines, achieving equal power division.The radial transmission lines employ ridge gap waveguides, which is built up by placing pin-type Electromagnetic Band-Gap(EBG) structures on the metal bottom plates adjacent to the ridge, effectively reducing coupling among adjacent channels without the need for welding the upper and lower plates.Simulation results show that the combiner operates within the frequency range from 14.7 to 37.5 GHz, with a reflection coefficient of less than-15 dB and a transmission coefficient of approximately-6.1 dB.The measurement results show good agreement with the simulation results.
[1] 何建平.基于切比雪夫变换的超宽带功分器设计[J].雷达科学与技术，2019,17(5):575-578.
[2] ZHAO Y X,WANG E L,HE D D,et al.Design of Wideband Dual-circularly Polarized Endfire Antenna Array on Gap Waveguide[C]//2019 13th European Conference on Antennas and Propagation (EuCAP).Krakow:IEEE,2019:1-3.
[3] JIANG K,ZHOU J W,SUN B,et al.Design of A Compact Planar Eight-way Hybrid Power Divider with Ultra-wide Bandwidth[C]//2021 13th International Symposium on Antennas,Propagation and EM Theory (ISAPE).Zhuhai:IEEE,2021:1-3.
[4] HARO-BAEZ R V,MASA-CAMPOS J L,CRUZ J A R,et al.Development of Radial Waveguide Dividers with Large Number of Ports[C]//2015 Asia-Pacific Conference on Computer Aided System Engineering.Quito:IEEE,2015:58-62.
[5] 杨作成，任文成，吴丹，等.一种C波段宽带高功率径向波导合路器[C]//2024年全国微波毫米波会议(中国微波年会).北京：[出版者不详],2024:284-286.
[6] FAHMIM M,RUAIZ-CRUZ J A,MANSOUR R R.Design of Ridge Waveguide Radial Combiners[J].IEEE Transactions on Microwave Theory and Technology,2021,70(1):895-906.
[7] 刘涓，吕善伟.一种实现宽频带功分器的新方法 [J].电子学报，2004,32(9):1527-1529
[8] 杨迎，谢小强.基于脊波导输出的6-18GHZ径向功率合成器[C]//2017年全国微波毫米波会议.杭州：[出版者不详],2017:973-976.
[9] PARK S,KANG B,JEONG J.A Broadband Radial Power Combiner Using a Dipole Antenna-based TM Mode Transducer[J].IEEE Access,2022,10:111901-111908.
[10] ALI M M M,SIFAT S M,ELSAADANY M,et al.Innovative Development Approach for a High-power 8-way Coaxial Radial Combiner[C]//2024 IEEE/MTT-S International Microwave Symposium-IMS 2024.Washington D.C.:IEEE,2024:788-791.
[11] ZHANG B,ZHANG Y,DANG Z,et al.A Compact and High-efficiency 220-GHz Power Amplifier Module Based on TE11-Mode Radial Power Combiner[J].IEEE Transactions on Microwave Theory and Techniques ,2024,72(5):3118-3129.
[12] KILDAL P S,ALFONSO E,VALERO-NOGUEIRA A,et al.Local Metamaterial-based Waveguides in Gaps between Parallel Metal Pates [J].IEEE Antennas Wireless Propagation Letters,2008,8:84-87.
[13] KILDAL P S,RAJO-IGLESIAS E,ALFONSO E,et al.Wideband,Low-loss,Quasi TEM Metamaterial-based Local Waveguides in Air Gaps between Parallel Metal Plates [C]//2009 International Conference on Electromagnetics in Advanced Applications.Turin:IEEE,2009:588-591.
[14] KILDAL P S,ZAMAN A U,RAJO-IGLESIAS E,et al.Design and Experimental Verification of Ridge Gap Waveguide in Bed of Nails for Parallel-plate Mode Suppression[J].IET Microwaves,Antennas&Propagation.2011,5(3):262-270.
[15] 叶龙芳，王正一，陈仲凯，等.人工表面等离激元波导及天线若干进展[J].无线电工程，2022,52(2):200-208.
[16] 孙海.变形对双侧鳍线传输特性影响的数值计算[J].无线电工程，2022,52(6):1044-1049.
[17] ZHANG T L,TANG R,CHEN L,et al.Ultra-wideband Full-metal Planar Array Antenna with a Combination of Ridge Gap Waveguide and E-plane Groove Gap Waveguide[J].IEEE Transactions on Antennas and Propagation,2022,70(9):8051-5058.
[18] 安进朝，张松轶，康志杰.一种高效率波导缝隙阵列天线设计[J].无线电工程，2023,53(3):721-726.
[19] 刘桂凤，杜彪，何应然.基于超表面的超宽带低剖面双极化天线[J].无线电工程，2022,52 (2):268-273.
基本信息:
中图分类号:TN73
引用信息:
[1]王迎栋.基于脊间隙波导的宽带径向功率合成器[J].无线电工程,2025,55(11):2250-2255.
2025-11-05
2025-11-05