Pub Date : 2024-08-07DOI: 10.1109/TAP.2024.3437218
Dónal Patrick Lynch;Manos M. Tentzeris;Vincent Fusco;Stylianos D. Asimonis
In this study, we introduce a novel antenna design method for superdirective antennas that combines low complexity with high radiation efficiency, while being impedance-matched to $50~Omega $ . We applied this approach to design, fabricate, and measure a superdirective antenna array (SDA) with a high realized antenna gain (i.e., 6.3 dBi) and radiation efficiency (i.e., 99.3%), consisting of two strip dipole elements operating at a frequency of 3.5 GHz. The fabricated antenna has an electrical size of 1.55, underscoring its compactness in addition to its high gain. Our approach is distinguished by its ability to achieve high directivity and radiation efficiency, along with impedance-matching to $50~Omega $ , through meticulous adjustments of the strip dimensions (i.e., length and width) and the phase difference between elements. This method eliminates the need for external impedance-matching networks, amplifiers, attenuators, parasitic elements, or loads, marking a significant advancement in the development of practical superdirective antenna designs.
{"title":"Super Realized Gain Antenna Array","authors":"Dónal Patrick Lynch;Manos M. Tentzeris;Vincent Fusco;Stylianos D. Asimonis","doi":"10.1109/TAP.2024.3437218","DOIUrl":"10.1109/TAP.2024.3437218","url":null,"abstract":"In this study, we introduce a novel antenna design method for superdirective antennas that combines low complexity with high radiation efficiency, while being impedance-matched to \u0000<inline-formula> <tex-math>$50~Omega $ </tex-math></inline-formula>\u0000. We applied this approach to design, fabricate, and measure a superdirective antenna array (SDA) with a high realized antenna gain (i.e., 6.3 dBi) and radiation efficiency (i.e., 99.3%), consisting of two strip dipole elements operating at a frequency of 3.5 GHz. The fabricated antenna has an electrical size of 1.55, underscoring its compactness in addition to its high gain. Our approach is distinguished by its ability to achieve high directivity and radiation efficiency, along with impedance-matching to \u0000<inline-formula> <tex-math>$50~Omega $ </tex-math></inline-formula>\u0000, through meticulous adjustments of the strip dimensions (i.e., length and width) and the phase difference between elements. This method eliminates the need for external impedance-matching networks, amplifiers, attenuators, parasitic elements, or loads, marking a significant advancement in the development of practical superdirective antenna designs.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-05DOI: 10.1109/TAP.2024.3435525
Chao Zhang;Yu Luo;Ningning Yan;Xiaoxuan Guo;Yue Guo;Kaixue Ma
An electrically reconfigurable metasurface (RM) element (RME) is proposed, which can realize both transmission and reflection functions with 360° phase coverage by a single switch (PIN diode). Through modifying the operating state of the PIN diode, the RME can switch between transmission and reflection functions. To achieve continuous phase compensation, the RME employs a classical multilayer structure. To ensure that the RME’s phase response follows the approximate trend in both states, the reconfigurable structure’s location is optimized. Based on the phase response curves of the RME in two states, the phase distribution function constructing the metasurface aperture is fit. Then, the RM can be designed and obtain precise phase distribution in both states simultaneously. A $9times 9$ -element RM is simulated and fabricated. It can obtain 360° continuous phase compensation and high-gain pencil beam with the same polarization in both states. The measured peak aperture efficiency is as high as 32.2%–33.7% in the two states. In addition, the proposed RM has an integrated biasing circuit network, which is controlled by a single voltage source and realizes the fusion design of transmission/reflection functions at a low cost.
{"title":"A Reconfigurable Metasurface With Precise Phase Distribution for Both Transmission and Reflection Functions","authors":"Chao Zhang;Yu Luo;Ningning Yan;Xiaoxuan Guo;Yue Guo;Kaixue Ma","doi":"10.1109/TAP.2024.3435525","DOIUrl":"10.1109/TAP.2024.3435525","url":null,"abstract":"An electrically reconfigurable metasurface (RM) element (RME) is proposed, which can realize both transmission and reflection functions with 360° phase coverage by a single switch (PIN diode). Through modifying the operating state of the PIN diode, the RME can switch between transmission and reflection functions. To achieve continuous phase compensation, the RME employs a classical multilayer structure. To ensure that the RME’s phase response follows the approximate trend in both states, the reconfigurable structure’s location is optimized. Based on the phase response curves of the RME in two states, the phase distribution function constructing the metasurface aperture is fit. Then, the RM can be designed and obtain precise phase distribution in both states simultaneously. A \u0000<inline-formula> <tex-math>$9times 9$ </tex-math></inline-formula>\u0000-element RM is simulated and fabricated. It can obtain 360° continuous phase compensation and high-gain pencil beam with the same polarization in both states. The measured peak aperture efficiency is as high as 32.2%–33.7% in the two states. In addition, the proposed RM has an integrated biasing circuit network, which is controlled by a single voltage source and realizes the fusion design of transmission/reflection functions at a low cost.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-05DOI: 10.1109/TAP.2024.3435567
Wenhao Tan;Yijing He;Hao Luo;Guoqiang Zhao;Houjun Sun
In this communication, a wideband and high-efficiency $8times 8$ antenna array is proposed for W-band. This antenna array is composed of three parts: the magnetoelectric (ME) dipole radiating elements, the feeding structure for $2times 2$ subarray, and the feeding network. The proposed high-performance ME-dipole element has side connections on both sides of the two radiating patches, forming a dumbbell-shaped slot in the middle. This novel structure contributes to wide bandwidth (BW), high efficiency, and manufacturing suitability in high frequencies around 100 GHz. Moreover, each $2times 2$ ME-dipole subarray is excited through four aperture-coupled slots right below the ME dipoles. The main part of the proposed feeding structure is a resonant cavity with a metal bar arranged in the middle to divide the waves, significantly improving the impedance BW of the subarray. The proposed feeding network exploits novel U-shaped T-junctions with improved low-frequency performance for widened BW. Finally, a cooperate ridge gap waveguide (RGW) feeding network is employed to feed the whole $8times 8$ antenna array through coupling slots right below the cavities. To verify the design, a prototype of the proposed antenna array is fabricated and measured. A measured BW of 28.5% from 81.5 to 108.6 GHz with a maximum gain and a radiation efficiency of 26.6 dB and 86.8% are achieved. The proposed antenna array has significant potential in W-band applications, such as high data-rate communication, high-gain detection, and high-resolution imaging systems.
本文提出了一种适用于 W 波段的宽带高效 $8/times 8$ 天线阵列。该天线阵由三部分组成：磁电偶极子辐射元件、2 元乘 2 元子阵列的馈电结构和馈电网络。所提出的高性能磁电偶极子元件在两个辐射片的两侧都有侧边连接，中间形成一个哑铃形槽。这种新颖的结构有助于实现宽带宽（BW）、高效率以及在 100 GHz 左右的高频率下的制造适用性。此外，每个2/times 2$ ME-偶极子阵列通过 ME 偶极子正下方的四个孔径耦合槽进行激励。拟议馈电结构的主要部分是一个谐振腔，中间布置了一根金属棒来分波，从而显著提高了子阵列的阻抗 BW。拟议的馈电网络利用了新型 U 形 T 型结点，其低频性能得到了改善，从而拓宽了频带宽度。最后，还采用了一种合作式脊隙波导（RGW）馈电网络，通过空腔下方的耦合槽馈电给整个 $8times 8$ 天线阵列。为了验证设计，我们制作并测量了拟议天线阵列的原型。在 81.5 至 108.6 千兆赫范围内，测量到的波长为 28.5%，最大增益和辐射效率分别为 26.6 dB 和 86.8%。拟议的天线阵列在 W 波段应用中具有巨大潜力，如高数据速率通信、高增益检测和高分辨率成像系统。
{"title":"A Wideband High-Efficiency Side-Connected Magnetoelectric Dipole Antenna Array Using Novel Feeding Technology for W-Band","authors":"Wenhao Tan;Yijing He;Hao Luo;Guoqiang Zhao;Houjun Sun","doi":"10.1109/TAP.2024.3435567","DOIUrl":"10.1109/TAP.2024.3435567","url":null,"abstract":"In this communication, a wideband and high-efficiency \u0000<inline-formula> <tex-math>$8times 8$ </tex-math></inline-formula>\u0000 antenna array is proposed for W-band. This antenna array is composed of three parts: the magnetoelectric (ME) dipole radiating elements, the feeding structure for \u0000<inline-formula> <tex-math>$2times 2$ </tex-math></inline-formula>\u0000 subarray, and the feeding network. The proposed high-performance ME-dipole element has side connections on both sides of the two radiating patches, forming a dumbbell-shaped slot in the middle. This novel structure contributes to wide bandwidth (BW), high efficiency, and manufacturing suitability in high frequencies around 100 GHz. Moreover, each \u0000<inline-formula> <tex-math>$2times 2$ </tex-math></inline-formula>\u0000 ME-dipole subarray is excited through four aperture-coupled slots right below the ME dipoles. The main part of the proposed feeding structure is a resonant cavity with a metal bar arranged in the middle to divide the waves, significantly improving the impedance BW of the subarray. The proposed feeding network exploits novel U-shaped T-junctions with improved low-frequency performance for widened BW. Finally, a cooperate ridge gap waveguide (RGW) feeding network is employed to feed the whole \u0000<inline-formula> <tex-math>$8times 8$ </tex-math></inline-formula>\u0000 antenna array through coupling slots right below the cavities. To verify the design, a prototype of the proposed antenna array is fabricated and measured. A measured BW of 28.5% from 81.5 to 108.6 GHz with a maximum gain and a radiation efficiency of 26.6 dB and 86.8% are achieved. The proposed antenna array has significant potential in W-band applications, such as high data-rate communication, high-gain detection, and high-resolution imaging systems.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-05DOI: 10.1109/TAP.2024.3435369
Qi Zheng;Wenxuan Liu;Qi Zhao;Linghui Kong;Yu-Hui Ren;Xue-Xia Yang
A metasurface (MS)-based low-profile, low radar cross section (RCS), wideband, and miniaturized microstrip patch array is proposed in this communication. First, a new method by combining reactive impedance surface (RIS) and polarization conversion metasurface (PCM) for antenna miniaturization and bandwidth enhancement as well as broadband RCS reduction is proposed. The proposed antenna is composed of a conventional patch antenna on top of an MS-based substrate. For the radiation performance, the antenna has a 10-dB impedance matching band of 22.3% and the overall volume is reduced to 78.9% after using the MS. For the scattering performance, broadband RCS reduction is achieved due to the polarization conversion characteristic of the MS. Over 10-dB RCS reduction is obtained from 6.10 to 18.90 GHz (a relative bandwidth of 106%). Second, the array composed of the $4times 4$ element antennas and a feeding network is constructed and discussed. A 25.6% 10-dB impedance matching bandwidth and 106% 6-dB RCS reduction bandwidth are obtained. The overall size of the proposed array is reduced to 76% compared to the array without the MS. A prototype of the array was fabricated and measured. The measured results and the simulated ones are in good agreement. The proposed array by combining RIS and PCM has the advantages of wideband, miniaturized size, low RCS, and low profile, which can be used for radar, aircraft, and stealth platforms.
{"title":"Broadband RCS Reduction, Antenna Miniaturization, and Bandwidth Enhancement by Combining Reactive Impedance Surface and Polarization Conversion Metasurface","authors":"Qi Zheng;Wenxuan Liu;Qi Zhao;Linghui Kong;Yu-Hui Ren;Xue-Xia Yang","doi":"10.1109/TAP.2024.3435369","DOIUrl":"10.1109/TAP.2024.3435369","url":null,"abstract":"A metasurface (MS)-based low-profile, low radar cross section (RCS), wideband, and miniaturized microstrip patch array is proposed in this communication. First, a new method by combining reactive impedance surface (RIS) and polarization conversion metasurface (PCM) for antenna miniaturization and bandwidth enhancement as well as broadband RCS reduction is proposed. The proposed antenna is composed of a conventional patch antenna on top of an MS-based substrate. For the radiation performance, the antenna has a 10-dB impedance matching band of 22.3% and the overall volume is reduced to 78.9% after using the MS. For the scattering performance, broadband RCS reduction is achieved due to the polarization conversion characteristic of the MS. Over 10-dB RCS reduction is obtained from 6.10 to 18.90 GHz (a relative bandwidth of 106%). Second, the array composed of the \u0000<inline-formula> <tex-math>$4times 4$ </tex-math></inline-formula>\u0000 element antennas and a feeding network is constructed and discussed. A 25.6% 10-dB impedance matching bandwidth and 106% 6-dB RCS reduction bandwidth are obtained. The overall size of the proposed array is reduced to 76% compared to the array without the MS. A prototype of the array was fabricated and measured. The measured results and the simulated ones are in good agreement. The proposed array by combining RIS and PCM has the advantages of wideband, miniaturized size, low RCS, and low profile, which can be used for radar, aircraft, and stealth platforms.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-05DOI: 10.1109/TAP.2024.3435379
Tongxing Huang;Zewei Wu;Shuai Huang;Zhijin Wen;Wei Jiang;Jianhua Xu;Jianxun Wang;Yong Luo
Shared-aperture dual-band transreflective metasurfaces enable independent manipulation of electromagnetic waves in both transmission and reflection across two separate frequency bands simultaneously. Nevertheless, dimensional constraints and unintended coupling limit the achievable bandwidth and phase coverage when the subcomponents are integrated in a compact area. This study presents a physics-based strategy to customize the resonant field and current distributions for the metasurface components, effectively suppressing inter-component coupling and expanding the phase range even within confined geometries. Using this proposed method, a shared-aperture dual-band transreflective metasurface with wideband operation and 2-bit phase discretization is designed. The efficacy of the meta-atom design strategy is demonstrated by a $40times 40$ component prototype, which independently generates twisted orbital angular momentum (OAM) vortex beams in transmission at 14.5–20.7 GHz and in reflection at 30–40 GHz. The design strategy offers a novel approach for developing dual-band, wideband trans-reflection meta-atoms with potential applications in multifunctional wavefront shaping.
{"title":"Broadband Transreflective Metasurface for Multifunctional Dual-Band OAM Engineering","authors":"Tongxing Huang;Zewei Wu;Shuai Huang;Zhijin Wen;Wei Jiang;Jianhua Xu;Jianxun Wang;Yong Luo","doi":"10.1109/TAP.2024.3435379","DOIUrl":"10.1109/TAP.2024.3435379","url":null,"abstract":"Shared-aperture dual-band transreflective metasurfaces enable independent manipulation of electromagnetic waves in both transmission and reflection across two separate frequency bands simultaneously. Nevertheless, dimensional constraints and unintended coupling limit the achievable bandwidth and phase coverage when the subcomponents are integrated in a compact area. This study presents a physics-based strategy to customize the resonant field and current distributions for the metasurface components, effectively suppressing inter-component coupling and expanding the phase range even within confined geometries. Using this proposed method, a shared-aperture dual-band transreflective metasurface with wideband operation and 2-bit phase discretization is designed. The efficacy of the meta-atom design strategy is demonstrated by a \u0000<inline-formula> <tex-math>$40times 40$ </tex-math></inline-formula>\u0000 component prototype, which independently generates twisted orbital angular momentum (OAM) vortex beams in transmission at 14.5–20.7 GHz and in reflection at 30–40 GHz. The design strategy offers a novel approach for developing dual-band, wideband trans-reflection meta-atoms with potential applications in multifunctional wavefront shaping.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-05DOI: 10.1109/tap.2024.3435337
Étienne Suquet, Laurent Castanet, Laurent Féral, Hugo Bourgoin, Xavier Boulanger
{"title":"Dynamic Range Improvements for Beacon Receivers Using Noise Power Measurements","authors":"Étienne Suquet, Laurent Castanet, Laurent Féral, Hugo Bourgoin, Xavier Boulanger","doi":"10.1109/tap.2024.3435337","DOIUrl":"https://doi.org/10.1109/tap.2024.3435337","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141939577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-02DOI: 10.1109/TAP.2024.3435031
Kaifeng Li;Yongjian Zhang;Yue Li
A hepta-mode wideband microstrip antenna is proposed for use on the back cover of mobile terminals, targeting Wi-Fi 6/6E and ultrawideband (UWB) channels 5–11 MIMO applications. This multiple-input multiple-output (MIMO) ant- enna design comprises four elements arranged in a sequential rotation pattern, each featuring four small patches with two asymmetric notches. Through proper adjustment of patch and notch dimensions, seven modes are effectively excited by a rotated L-shaped feeding probe, thereby amplifying bandwidth of the proposed antenna. In addition, size miniaturization is achieved using a circle of blind vias. To validate the design strategy, a prototype of the MIMO antenna is constructed with dimensions measuring $60.6times 60.6times 2$ mm3. Meeting the requirements for mobile antenna specifications, the proposed MIMO antenna covers a wide range of frequencies, including Wi-Fi 6/6E and UWB channels 5–11, with a measured −6-dB impedance bandwidth of 5.14–9.05 GHz and an isolation of over 12 dB between each antenna element. Combining broad bandwidth, compact dimensions, and a low profile, this MIMO antenna demonstrates significant potential for supporting diverse wireless services on mobile terminals.
针对 Wi-Fi 6/6E 和超宽带 (UWB) 信道 5-11 MIMO 应用，提出了一种用于移动终端后盖的七模宽带微带天线。这种多输入多输出（MIMO）天线设计由四个按顺序旋转模式排列的元件组成，每个元件都有四个带有两个非对称凹口的小贴片。通过适当调整贴片和凹口的尺寸，旋转的 L 形馈电探针可有效激发七种模式，从而扩大了所提天线的带宽。此外，还利用一圈盲孔实现了小型化。为了验证设计策略，我们建造了一个 MIMO 天线原型，尺寸为 60.6 美元/60.6 英寸/2 美元 mm3。所提出的 MIMO 天线符合移动天线规格要求，覆盖了广泛的频率范围，包括 Wi-Fi 6/6E 和 UWB 信道 5-11，测量的 -6-dB 阻抗带宽为 5.14-9.05 GHz，每个天线元件之间的隔离度超过 12 dB。这款多输入多输出（MIMO）天线兼具带宽宽、尺寸紧凑和外形小巧等特点，在支持移动终端上的各种无线服务方面具有巨大潜力。
{"title":"Hepta-Mode Terminal Microstrip Antenna for Mobile Wi-Fi 6/6E and UWB Channels 5–11 MIMO Applications","authors":"Kaifeng Li;Yongjian Zhang;Yue Li","doi":"10.1109/TAP.2024.3435031","DOIUrl":"10.1109/TAP.2024.3435031","url":null,"abstract":"A hepta-mode wideband microstrip antenna is proposed for use on the back cover of mobile terminals, targeting Wi-Fi 6/6E and ultrawideband (UWB) channels 5–11 MIMO applications. This multiple-input multiple-output (MIMO) ant- enna design comprises four elements arranged in a sequential rotation pattern, each featuring four small patches with two asymmetric notches. Through proper adjustment of patch and notch dimensions, seven modes are effectively excited by a rotated L-shaped feeding probe, thereby amplifying bandwidth of the proposed antenna. In addition, size miniaturization is achieved using a circle of blind vias. To validate the design strategy, a prototype of the MIMO antenna is constructed with dimensions measuring \u0000<inline-formula> <tex-math>$60.6times 60.6times 2$ </tex-math></inline-formula>\u0000 mm3. Meeting the requirements for mobile antenna specifications, the proposed MIMO antenna covers a wide range of frequencies, including Wi-Fi 6/6E and UWB channels 5–11, with a measured −6-dB impedance bandwidth of 5.14–9.05 GHz and an isolation of over 12 dB between each antenna element. Combining broad bandwidth, compact dimensions, and a low profile, this MIMO antenna demonstrates significant potential for supporting diverse wireless services on mobile terminals.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-02DOI: 10.1109/TAP.2024.3433601
Papa Sakyi;Jordan Dugan;Debidas Kundu;Tom J. Smy;Shulabh Gupta
A simple waveguide-Floquet mapping is proposed and theoretically investigated that links the scattering response of a sub-wavelength metasurface unit cell under an infinite periodic array configuration and when measured inside a shielded rectangular waveguide environment. This mapping is based on extracting the effective surface susceptibilities as the fundamental constitutive parameters of the cells, via the generalized sheet transition conditions (GSTCs) of the unit cell using the waveguide measurements, and then reconstructing the unit-cell response at an arbitrary incidence angles. Using two examples of a transmissive Huygens’ metasurface and a purely reflective metasurface, the proposed waveguide-Floquet mapping is numerically confirmed to determine the complete angular scattering of the unit cells. The proposed waveguide-Floquet mapping thus represents a simple technique to experimentally determine the angular scattering characteristics of the unit cell using a low-cost effective waveguide measurements.
{"title":"Waveguide-Floquet Mapping Using Surface Susceptibilities for Passive and Active Metasurface Unit-Cell Characterization","authors":"Papa Sakyi;Jordan Dugan;Debidas Kundu;Tom J. Smy;Shulabh Gupta","doi":"10.1109/TAP.2024.3433601","DOIUrl":"10.1109/TAP.2024.3433601","url":null,"abstract":"A simple waveguide-Floquet mapping is proposed and theoretically investigated that links the scattering response of a sub-wavelength metasurface unit cell under an infinite periodic array configuration and when measured inside a shielded rectangular waveguide environment. This mapping is based on extracting the effective surface susceptibilities as the fundamental constitutive parameters of the cells, via the generalized sheet transition conditions (GSTCs) of the unit cell using the waveguide measurements, and then reconstructing the unit-cell response at an arbitrary incidence angles. Using two examples of a transmissive Huygens’ metasurface and a purely reflective metasurface, the proposed waveguide-Floquet mapping is numerically confirmed to determine the complete angular scattering of the unit cells. The proposed waveguide-Floquet mapping thus represents a simple technique to experimentally determine the angular scattering characteristics of the unit cell using a low-cost effective waveguide measurements.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-08-01DOI: 10.1109/tap.2024.3434455
Charalampos Stoumpos, Lucas Polo-López, Hervé Legay, Thierry Pierré, María García-Vigueras
{"title":"Blazed 3D Cells with Application to Full-Metal Dichroic Mirrors","authors":"Charalampos Stoumpos, Lucas Polo-López, Hervé Legay, Thierry Pierré, María García-Vigueras","doi":"10.1109/tap.2024.3434455","DOIUrl":"https://doi.org/10.1109/tap.2024.3434455","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":null,"pages":null},"PeriodicalIF":5.7,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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