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Broadband Low-RCS Metantenna With Integrated Radiation and Scattering Performance Using Characteristic Mode Analysis 基于特征模分析的宽带低rcs辐射散射综合性能元天线
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70563
Jing-Wen Wang, Xiang Zhang, Jun Ding, Wei-dong Chen, Chang Chen
{"title":"Broadband Low-RCS Metantenna With Integrated Radiation and Scattering Performance Using Characteristic Mode Analysis","authors":"Jing-Wen Wang,&nbsp;Xiang Zhang,&nbsp;Jun Ding,&nbsp;Wei-dong Chen,&nbsp;Chang Chen","doi":"10.1002/mop.70563","DOIUrl":"https://doi.org/10.1002/mop.70563","url":null,"abstract":"<div>\u0000 \u0000 <p>This work introduces a novel design methodology for broadband low radar cross section (RCS) metantennas with integrated radiation and scattering performance. The design leverages characteristic mode analysis (CMA) to create four basic elements with similar resonant frequencies but distinct phase responses under plane-wave excitation. These elements are then arranged in an array to achieve broadband radiation through the simultaneous excitation of multiple modes. Concurrently, broadband RCS reduction can be realized by carefully engineering the phase differences between scattering modes across the operating band. To validate the proposed methodology, 4 × 4 and 8 × 8 slot-coupled metantennas were designed and characterized. Measurement results demonstrate that both antennas achieve an impedance bandwidth and 3-dB gain bandwidth exceeding 43.4% while simultaneously providing a 10-dB RCS reduction across the entire operational band.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A High-Isolation Dual-Polarized Ku-Band Array Based on a Surface-Mounted Antenna Element 基于表面天线元件的高隔离双极化ku波段阵列
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-12 DOI: 10.1002/mop.70567
Jeen-Sheen Row, Hunh-Ru Dai
{"title":"A High-Isolation Dual-Polarized Ku-Band Array Based on a Surface-Mounted Antenna Element","authors":"Jeen-Sheen Row,&nbsp;Hunh-Ru Dai","doi":"10.1002/mop.70567","DOIUrl":"https://doi.org/10.1002/mop.70567","url":null,"abstract":"<div>\u0000 \u0000 <p>A design for dual-polarized antenna arrays with broadband operation and high isolation is proposed. The radiating element of the array is a flake-shaped antenna with the dimensions of 10.8 × 0.25 × 6 mm<sup>3</sup>, and it can be mounted directly onto a circuit board of the feed network. Simulated results show that the impedance bandwidth of the radiating element is about 34% with respect to the center frequency of 12.5 GHz. Based on the broadband element, a 4 × 4 dual-polarized array excited with two corporate feed networks is developed, and a prototype is fabricated. Measured results demonstrate that the array at each polarization state has broadside radiation with the maximum gain of 19 dBi; besides, a port-to-port isolation of more than 40 dB are achieved. The experimental results also have good agreements with the simulated data.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147565461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Absorption Type Terahertz Shielding of Carbon Black–Organic Silicon Rubber 碳黑-有机硅橡胶的吸收型太赫兹屏蔽
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-11 DOI: 10.1002/mop.70556
Jiu-Sheng Li, Feng-lei Guo
{"title":"Absorption Type Terahertz Shielding of Carbon Black–Organic Silicon Rubber","authors":"Jiu-Sheng Li,&nbsp;Feng-lei Guo","doi":"10.1002/mop.70556","DOIUrl":"https://doi.org/10.1002/mop.70556","url":null,"abstract":"<div>\u0000 \u0000 <p>In this article, we have made a type of carbon black/organic silicone rubber (CB/OSR) composite medium and analyzed the effect of different carbon black contents on the terahertz wave shielding efficiency of the composite medium. The tested results show that the CB/OSR with a thickness of 2.5 mm and a carbon black content of 8% has terahertz absorption rate of over 99%, and the total terahertz shielding effectiveness mainly based on absorption reaches 27.69 dB. When the external tension changes from 0 to 20 N, the total shielding effectiveness of the composite medium decreases from 27.69 to 24.78 dB. When the thickness changes from 2.5 to 7.5 mm, the total shielding effectiveness of the composite medium increases from 27.69 to 63.51 dB. The experimental results indicate that the developed composite medium can effectively reduce terahertz wave reflection and achieve the main electromagnetic shielding function of terahertz wave absorption. Due to its small size and light weight, it has good application prospects in the field of terahertz wave shielding.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Layered Hybrid Multifunctional FSS-Metasurface Antenna: Tri-Band and Quad-Beam Wavefront Control 层状混合多功能fss超表面天线：三波段和四波束波前控制
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-11 DOI: 10.1002/mop.70557
Lu Tian, Rui Zhang, Yueyan Ren, Kunlong Jiao, Hui Wang, Kaixuan Sun, Yong Wang
{"title":"A Layered Hybrid Multifunctional FSS-Metasurface Antenna: Tri-Band and Quad-Beam Wavefront Control","authors":"Lu Tian,&nbsp;Rui Zhang,&nbsp;Yueyan Ren,&nbsp;Kunlong Jiao,&nbsp;Hui Wang,&nbsp;Kaixuan Sun,&nbsp;Yong Wang","doi":"10.1002/mop.70557","DOIUrl":"https://doi.org/10.1002/mop.70557","url":null,"abstract":"<div>\u0000 \u0000 <p>In this letter, a layered multifunctional tri-band reflect-transmit-array (RTA) with quad-beam control is reported. The unit adopts a multi-layer structure and integrates frequency selective surfaces (FSS) to effectively isolate distinct frequency bands. Through a strategic combination of continuous phase (C.P.) and 1-Bit phase distributions, it achieves precise control over four independent beams. The performance of the proposed RTA was verified through simulation, fabrication, and measurement, and the measured results show high consistency with the simulation. The measured results indicate that the maximum aperture efficiencies (AEs) of four beams are 35.65% (Beam 1, C.P.), 50.88% (Beam 2, C.P.), 20.45% (Beam 3, 1-Bit), and 18.17% (Beam 4, 1-Bit). The measured 1-dB gain bandwidths (BWs) are 6.38%, 12.67%, 10.44%, and 11.45%, respectively. Moreover, the 3-dB axial ratio BW of Beam 2 is 20.21%. Compared to the previous multi-band RTAs, this design not only realizes tri-band operation, but also increases the number of beams and provides competitive wide-band performance, making it well-suited for multi-band and satellite applications.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Absorption Type Terahertz Shielding of Carbon Black–Organic Silicon Rubber 碳黑-有机硅橡胶的吸收型太赫兹屏蔽
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-11 DOI: 10.1002/mop.70556
Jiu-Sheng Li, Feng-lei Guo
{"title":"Absorption Type Terahertz Shielding of Carbon Black–Organic Silicon Rubber","authors":"Jiu-Sheng Li,&nbsp;Feng-lei Guo","doi":"10.1002/mop.70556","DOIUrl":"https://doi.org/10.1002/mop.70556","url":null,"abstract":"<div>\u0000 \u0000 <p>In this article, we have made a type of carbon black/organic silicone rubber (CB/OSR) composite medium and analyzed the effect of different carbon black contents on the terahertz wave shielding efficiency of the composite medium. The tested results show that the CB/OSR with a thickness of 2.5 mm and a carbon black content of 8% has terahertz absorption rate of over 99%, and the total terahertz shielding effectiveness mainly based on absorption reaches 27.69 dB. When the external tension changes from 0 to 20 N, the total shielding effectiveness of the composite medium decreases from 27.69 to 24.78 dB. When the thickness changes from 2.5 to 7.5 mm, the total shielding effectiveness of the composite medium increases from 27.69 to 63.51 dB. The experimental results indicate that the developed composite medium can effectively reduce terahertz wave reflection and achieve the main electromagnetic shielding function of terahertz wave absorption. Due to its small size and light weight, it has good application prospects in the field of terahertz wave shielding.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Switchable Multi-Band Filtering Attenuator 可切换多带滤波衰减器
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-11 DOI: 10.1002/mop.70569
Junling He, Rihan Wu, Yu Cao, Yong Liu, Xiaohong Tang
{"title":"Switchable Multi-Band Filtering Attenuator","authors":"Junling He,&nbsp;Rihan Wu,&nbsp;Yu Cao,&nbsp;Yong Liu,&nbsp;Xiaohong Tang","doi":"10.1002/mop.70569","DOIUrl":"https://doi.org/10.1002/mop.70569","url":null,"abstract":"<div>\u0000 \u0000 <p>This letter presents a design method for a switchable multi-band filtering attenuator. First, a multi-band filtering function is designed using the generalized Chebyshev function as the prototype. By incorporating a genetic algorithm and a minimum optimization algorithm, the filter can flexibly specify the number of passbands, center frequency, bandwidth, order, and return loss (RL) for each band. To enable independent amplitude control for each passband, the resonators corresponding to each band are decoupled. The amplitude attenuation is achieved by adjusting the quality factor (Q-factor) of each resonator. To validate the theoretical approach, a switchable dual-band filtering attenuator (SDBFA) is designed, with the first passband ranging from 435 to 455 MHz and the second from 860 to 920 MHz. Measurement results show that the amplitude of each passband can be independently controlled, and both passbands can be individually switched on or off.</p></div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Switchable Multi-Band Filtering Attenuator 可切换多带滤波衰减器
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-11 DOI: 10.1002/mop.70569
Junling He, Rihan Wu, Yu Cao, Yong Liu, Xiaohong Tang
{"title":"Switchable Multi-Band Filtering Attenuator","authors":"Junling He,&nbsp;Rihan Wu,&nbsp;Yu Cao,&nbsp;Yong Liu,&nbsp;Xiaohong Tang","doi":"10.1002/mop.70569","DOIUrl":"https://doi.org/10.1002/mop.70569","url":null,"abstract":"<div>\u0000 \u0000 <p>This letter presents a design method for a switchable multi-band filtering attenuator. First, a multi-band filtering function is designed using the generalized Chebyshev function as the prototype. By incorporating a genetic algorithm and a minimum optimization algorithm, the filter can flexibly specify the number of passbands, center frequency, bandwidth, order, and return loss (RL) for each band. To enable independent amplitude control for each passband, the resonators corresponding to each band are decoupled. The amplitude attenuation is achieved by adjusting the quality factor (Q-factor) of each resonator. To validate the theoretical approach, a switchable dual-band filtering attenuator (SDBFA) is designed, with the first passband ranging from 435 to 455 MHz and the second from 860 to 920 MHz. Measurement results show that the amplitude of each passband can be independently controlled, and both passbands can be individually switched on or off.</p></div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Shaping the Radiation Patterns of Monofilar Helices Using Paraboloid Ground Planes 利用抛物面地平面塑造单丝螺旋的辐射方向图
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-11 DOI: 10.1002/mop.70566
Gabriel Burdan, Jori Platt, Ljubodrag Boskovic, Dejan S. Filipovic
{"title":"Shaping the Radiation Patterns of Monofilar Helices Using Paraboloid Ground Planes","authors":"Gabriel Burdan,&nbsp;Jori Platt,&nbsp;Ljubodrag Boskovic,&nbsp;Dejan S. Filipovic","doi":"10.1002/mop.70566","DOIUrl":"https://doi.org/10.1002/mop.70566","url":null,"abstract":"<div>\u0000 \u0000 <p>Three paraboloid ground planes integrated with an X-band monofilar helix operating in axial mode to demonstrate pattern shaping. The antenna assembly is modular with interchangeable ground planes used to achieve different far-field goals. To enable low-cost prototyping, all modules are designed to be 3D printed and electroplated. The simulations are validated with well-agreeing measurements, and the performance is compared to the commonly used cone ground plane. Improvements with respect to bandwidth and directivity are also discussed. The unique radiation patterns enabled by the paraboloid ground planes are explored, and general guidelines for performance vs. focal point location are established. Each assembled module demonstrates quality impedance match and main beam axial ratio over the entirety of X-Band.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Shaping the Radiation Patterns of Monofilar Helices Using Paraboloid Ground Planes 利用抛物面地平面塑造单丝螺旋的辐射方向图
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-11 DOI: 10.1002/mop.70566
Gabriel Burdan, Jori Platt, Ljubodrag Boskovic, Dejan S. Filipovic
{"title":"Shaping the Radiation Patterns of Monofilar Helices Using Paraboloid Ground Planes","authors":"Gabriel Burdan,&nbsp;Jori Platt,&nbsp;Ljubodrag Boskovic,&nbsp;Dejan S. Filipovic","doi":"10.1002/mop.70566","DOIUrl":"https://doi.org/10.1002/mop.70566","url":null,"abstract":"<div>\u0000 \u0000 <p>Three paraboloid ground planes integrated with an X-band monofilar helix operating in axial mode to demonstrate pattern shaping. The antenna assembly is modular with interchangeable ground planes used to achieve different far-field goals. To enable low-cost prototyping, all modules are designed to be 3D printed and electroplated. The simulations are validated with well-agreeing measurements, and the performance is compared to the commonly used cone ground plane. Improvements with respect to bandwidth and directivity are also discussed. The unique radiation patterns enabled by the paraboloid ground planes are explored, and general guidelines for performance vs. focal point location are established. Each assembled module demonstrates quality impedance match and main beam axial ratio over the entirety of X-Band.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Layered Hybrid Multifunctional FSS-Metasurface Antenna: Tri-Band and Quad-Beam Wavefront Control 层状混合多功能fss超表面天线：三波段和四波束波前控制
IF 1.2 4区 工程技术
Microwave and Optical Technology Letters Pub Date : 2026-03-11 DOI: 10.1002/mop.70557
Lu Tian, Rui Zhang, Yueyan Ren, Kunlong Jiao, Hui Wang, Kaixuan Sun, Yong Wang
{"title":"A Layered Hybrid Multifunctional FSS-Metasurface Antenna: Tri-Band and Quad-Beam Wavefront Control","authors":"Lu Tian,&nbsp;Rui Zhang,&nbsp;Yueyan Ren,&nbsp;Kunlong Jiao,&nbsp;Hui Wang,&nbsp;Kaixuan Sun,&nbsp;Yong Wang","doi":"10.1002/mop.70557","DOIUrl":"https://doi.org/10.1002/mop.70557","url":null,"abstract":"<div>\u0000 \u0000 <p>In this letter, a layered multifunctional tri-band reflect-transmit-array (RTA) with quad-beam control is reported. The unit adopts a multi-layer structure and integrates frequency selective surfaces (FSS) to effectively isolate distinct frequency bands. Through a strategic combination of continuous phase (C.P.) and 1-Bit phase distributions, it achieves precise control over four independent beams. The performance of the proposed RTA was verified through simulation, fabrication, and measurement, and the measured results show high consistency with the simulation. The measured results indicate that the maximum aperture efficiencies (AEs) of four beams are 35.65% (Beam 1, C.P.), 50.88% (Beam 2, C.P.), 20.45% (Beam 3, 1-Bit), and 18.17% (Beam 4, 1-Bit). The measured 1-dB gain bandwidths (BWs) are 6.38%, 12.67%, 10.44%, and 11.45%, respectively. Moreover, the 3-dB axial ratio BW of Beam 2 is 20.21%. Compared to the previous multi-band RTAs, this design not only realizes tri-band operation, but also increases the number of beams and provides competitive wide-band performance, making it well-suited for multi-band and satellite applications.</p>\u0000 </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"68 3","pages":""},"PeriodicalIF":1.2,"publicationDate":"2026-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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