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Flexible Folded-Patch Antenna with Tapered Edges for Metal-Mountable UHF RFID Tag Design 柔性折叠贴片天线与锥形边缘金属安装超高频RFID标签设计
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344760
Muthukannan Murugesh, Yong-Hong Lee, P. Chee, E. Lim
{"title":"Flexible Folded-Patch Antenna with Tapered Edges for Metal-Mountable UHF RFID Tag Design","authors":"Muthukannan Murugesh, Yong-Hong Lee, P. Chee, E. Lim","doi":"10.1109/RFM50841.2020.9344760","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344760","url":null,"abstract":"A flexible folded-patch tag antenna with a compact dimension of 30 mm × 50 mm × 3.3 mm (0.092λ × 0.153λ × 0.010λ) is designed for mounting on metallic objects. It consists of a tapered patch resonator on the top, two rows of small loading patches at the middle, a ground patch at the bottom, and a loop-shaped stub on the sidewall. The tag antenna can be easily fabricated using flexible soft foam substrates that are sandwiched in between the top patch, the middle patch, and the ground. The gap of the rows of the small loading patches can be adjusted for changing and fine-tuning the resonant frequency effectively without affecting much to the antenna gain. The proposed tag antenna is working in the UHF passband and it can achieve a reasonably far read distance of approximately 17.5 m on metal.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124792535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Design of H-shape Defected Ground Structure h型缺陷地面结构设计
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344784
N. A. Razali, N. Zakaria, K. K. M. Shariff, N. A. Rashid, Z. I. Khan, S. A. E. Ab Rahim
{"title":"Design of H-shape Defected Ground Structure","authors":"N. A. Razali, N. Zakaria, K. K. M. Shariff, N. A. Rashid, Z. I. Khan, S. A. E. Ab Rahim","doi":"10.1109/RFM50841.2020.9344784","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344784","url":null,"abstract":"This paper presents the design of an H-shape defected ground structure (DGS). Full EM-wave simulation of the design was carried out by using the Computer Simulation Technology (CST) software. The influence of some DGS design parameters on the resonant frequency was simulated and studied. The designed DGS was fabricated on FR4 and its performance was measured. The measurement results show that the designed H-shape DGS well exhibits a bandstop characteristic. At 280 MHz, the insertion loss, S11 of the structure is −1.64dB, and the forward transmission, S21 is −15.33dB.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121926815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Wideband Metamaterial Substrate Integrated Waveguide Antenna for Millimeterwave Applications 用于毫米波应用的宽带超材料基板集成波导天线
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344756
N. Murad, Muataz W. Almeshehe, O. Ayop, M. Rahim
{"title":"Wideband Metamaterial Substrate Integrated Waveguide Antenna for Millimeterwave Applications","authors":"N. Murad, Muataz W. Almeshehe, O. Ayop, M. Rahim","doi":"10.1109/RFM50841.2020.9344756","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344756","url":null,"abstract":"This paper focuses on the design of a slotted substrate integrated waveguide (SIW) antenna with metamaterial at Ka-band for millimeterwave applications. SIW structure is on interest at higher band due to its low loss properties. The advantage of this design is the enhancement of the bandwidth and twin-beam properties. The SIW antenna is designed with Roman number one (I) slot shape at Ka-band with bandwidth of 1 GHz. A metamaterial unit cell is implemented based on split ring resonator (SRR). The unit cells are integrated with the antenna next to the feeding line. The antenna is simulated and optimized using CST software. The antenna is well matched with return loss less than 10 dB and an impedance bandwidth 3.7 GHz are obtained. The overall dimension of the antenna is 28 mm × 10 mm× 0.406 mm. Twin-beam is observed with gain of 6.8 dB with efficiency of 96 %.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123978327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Comparison of Unit-Cell and All-Cells Active Element Patterns of Small Antenna Array 小型天线阵单小区与全小区有源元图的比较
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344754
N. A. Malek, Khaleef Khairul Anuar, O. Khalifa, M. R. Islam
{"title":"Comparison of Unit-Cell and All-Cells Active Element Patterns of Small Antenna Array","authors":"N. A. Malek, Khaleef Khairul Anuar, O. Khalifa, M. R. Islam","doi":"10.1109/RFM50841.2020.9344754","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344754","url":null,"abstract":"In this paper, an array of microstrip patch array antenna has been designed and simulated for 5G applications at 28 GHz. Beamforming which requires pattern analysis remain significant especially for 5G communication as it is able to mitigate high path loss at high frequency. Thus, an accurate pattern analysis is essential in order to obtain accurate beamforming capability. Active element pattern is one of the techniques, considering better accuracy as it includes mutual coupling effect between elements in antenna array. In many cases, unit-cell AEP was preferable because full element-by-element analysis was time consuming and complex especially for infinite or large antenna arrays. However, this analysis is less accurate for small antenna arrays due to different neighboring elements between centre-fed and edge-fed elements which makes all-cells AEP is more accurate rather than unit-cell AEP. This paper compares between unit-cell (UC) and all-cells (AC) of active element patterns (AEPs) in 1 by 4 patch antenna array. The geometrical design of the microstrip patch array antenna is simulated and executed using CST Microwave Studio (CST MWS). Both (AEPs) are obtained from simulation for pattern synthesis in beamforming. The results show that AC-AEP performs better for pattern synthesis compared to UC-AEP. Thus, AC-AEP is recommended for pattern synthesis of small antenna arrays rather than UC-AEP.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117328971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Performance Comparison between Different Structures of FSS in Terms of Angular Stability 不同结构FSS的角稳定性性能比较
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344767
N. Ishak, M. H. Dahri, M. Kamarudin, F. Seman, N. Awang, C. Soon, N. Zainal
{"title":"Performance Comparison between Different Structures of FSS in Terms of Angular Stability","authors":"N. Ishak, M. H. Dahri, M. Kamarudin, F. Seman, N. Awang, C. Soon, N. Zainal","doi":"10.1109/RFM50841.2020.9344767","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344767","url":null,"abstract":"Due to the importance of angular stability in affecting Frequency Selective Surface (FSS) response such reflection/transmission, bandwidth and resonant frequency, this paper presents the comparison between the performance of top listed FSS structures based on basic shapes of cross, circular, and square loop. The design, simulation, and optimization process have been carried out using CST Microwave Studios software at resonance frequency of 2.5THz. Each selected design obtains transmission coefficients (S21) of 0.753dB, 0.824dB and 0.893dB for cross, circular, and square shape, respectively. All the designs have been analyzed in terms of their performance with the angle of incidence ranges from 0° to 60°. From the analysis, it is shown that the square loop structure offers more stability in every analysis compared to other structures. Through simulation, surface current intensity, shown all FSS structures have the capability of enhancing the detection and sensing abilities. Moreover, all structures involved shown more than 90% increase in the surface current intensity as compared to FSS layer (vacuum) which can be applied towards future sensing and detection application.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129335552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Enhanced T-Resonator with Blazed Grating for Accurate Powder Material Characterization 带有燃烧光栅的增强型t谐振器用于粉末材料的精确表征
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344733
R. Alahnomi, Z. Zakaria, M. A. Meor Said, Z. M. Yussof, A. Alhegazi, H. Alsariera, Norhanani Abd Rahman
{"title":"Enhanced T-Resonator with Blazed Grating for Accurate Powder Material Characterization","authors":"R. Alahnomi, Z. Zakaria, M. A. Meor Said, Z. M. Yussof, A. Alhegazi, H. Alsariera, Norhanani Abd Rahman","doi":"10.1109/RFM50841.2020.9344733","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344733","url":null,"abstract":"This paper proposes an enhanced microwave T-resonator technique for powder material characterization using a blazed grating. The main advantage of this technique is the high sensitivity and non-invasive measurement such that it can be integrated easily for sensing applications. The non-invasive measurement is achieved by implementing powder container into the sensing area of the sensor, thus avoiding the need to deal with the cross error of directly contact measurement. The proposed sensor is designed at around 2.5 GHz resonant frequency and fabricated on a 0.787 mm-thickness Roger 5880 substrate. To validate the sensitivity of the proposed sensor, six common powder materials of different weights are tested. It is found the sensitivity achieved $11.96MHz/Deltavarepsilon$ and the frequency is shifted between 23 and 56.6 MHz for all measured cases at 1-gram weight. This work will lead to a promising cost-effective sensor with compactness in size, ease of fabrication and small amount of the tested preparation for industrial applications that required advance sensing technique in quality control of the food industry.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127299956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Simulation and Parameters Variation of Silicon Based Self-Switching Diode (SSD) and the Effect to the Physical and Electrical Properties 硅基自开关二极管(SSD)的数值模拟、参数变化及其对其物理和电学性能的影响
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344755
YL Tan, N. Zakaria, SR Kasjoo, S. Shaari, MM Isa, M. Arshad, A. Rahim
{"title":"Numerical Simulation and Parameters Variation of Silicon Based Self-Switching Diode (SSD) and the Effect to the Physical and Electrical Properties","authors":"YL Tan, N. Zakaria, SR Kasjoo, S. Shaari, MM Isa, M. Arshad, A. Rahim","doi":"10.1109/RFM50841.2020.9344755","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344755","url":null,"abstract":"Investigation of SOI based self-switching diode (SSD) by numerical simulation for RF -DC harvesting application is presented. The rectification performance of the SSD is based on the curvature coefficient, γ and current responsivity, β which are closely related to the I-V characteristic of a non-linear device. In this work, the structural parameters are varied to observe the electrical and physical characteristics with the aid of ATLAS Silvaco simulation tools. The rectification performance in each variation is then compared, with the highest value of γ and β observed at ~25.20 V−1 and ~12.60 V−1, respectively. By identifying and understanding these control factors and their effects, distinctive variations of the structural parameters by using a more deliberate optimization method can be proposed for further improvement on the rectification performance.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122257657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CWT Algorithm for Forward-Scatter Radar Micro-Doppler Signals Analysis 前向散射雷达微多普勒信号分析的CWT算法
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344748
K. Othman, N. E. Rashid, R. Abdullah, A. Alnaeb
{"title":"CWT Algorithm for Forward-Scatter Radar Micro-Doppler Signals Analysis","authors":"K. Othman, N. E. Rashid, R. Abdullah, A. Alnaeb","doi":"10.1109/RFM50841.2020.9344748","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344748","url":null,"abstract":"The study on Forward Scatter Radar (FSR) Micro-Doppler signals for ground target detection has become a subject of attention recently. Time series signal analysis is considered as an important area explored in understanding hidden information that can be evaluated for further processing. Wavelet transformation is well known method used to analyze time domain signal for identification of important features for classification purposes. This paper describes time series signal analysis of FSR radar network using wavelet transformation. The developed algorithm use CWT Morlet in the transformation procedure. The wavelet performance in transformation process is verified using data sampled from a simulated pendulum and experimental controlled data signals. By using the developed algorithm, the presence Micro-Doppler signatures can be detected. Through preliminary testing the algorithm has proven to be a potential method in to be applied for feature identification.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126927152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Wideband Millimeter wave Rectangular Dielectric Resonator Antenna with annular feed structure for 5G Applications 5G环形馈电结构的宽带毫米波矩形介质谐振器天线
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344771
Abinash Gaya, M. Jamaluddin, A. Althuwayb
{"title":"Wideband Millimeter wave Rectangular Dielectric Resonator Antenna with annular feed structure for 5G Applications","authors":"Abinash Gaya, M. Jamaluddin, A. Althuwayb","doi":"10.1109/RFM50841.2020.9344771","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344771","url":null,"abstract":"A annular feed shaped strip line is used to feed a Dielectric Resonator Antenna (DRA) here which generates wide bandwidth with high isolation. This DRA generates bandwidth of 3.9GHz which is 15% of the impedance bandwidth. The generated bandwidth is centered at 26GHz as the center frequency This antenna can be used for millimeter wave 5G applications in the frequency band of 5G. The generated bandwidth completely covers the total 5G spectrum of band30. The mode excited here is TE 1y1. A gain of 6.2dBi with radiation efficiency of 97 percent has been achieved here. The features of wide bandwidth, high isolation, makes this antenna more suitable candidate for 5G applications in band 30.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124731493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Ant-Colony Optimization for 5G NOMA User Grouping 5G NOMA用户分组的蚁群优化
2020 IEEE International RF and Microwave Conference (RFM) Pub Date : 2020-12-14 DOI: 10.1109/RFM50841.2020.9344788
Hadhrami Ab. Ghani, Asyiqin Amir Hamzah, Mohammed Adel Salem, Ahmed Abdullah Ahmed, A. Aziz, A. Azizan
{"title":"Ant-Colony Optimization for 5G NOMA User Grouping","authors":"Hadhrami Ab. Ghani, Asyiqin Amir Hamzah, Mohammed Adel Salem, Ahmed Abdullah Ahmed, A. Aziz, A. Azizan","doi":"10.1109/RFM50841.2020.9344788","DOIUrl":"https://doi.org/10.1109/RFM50841.2020.9344788","url":null,"abstract":"Non-orthogonal multiple access (NOMA) is essential for 5G networks in achieving improved fairness and throughput. Scheduling the massive number of users on NOMA systems and wireless networks lead to a rise in the computational loads, which can be reduced using heuristic algorithms. This paper proposes ant-colony optimization (ACO) for user grouping in NOMA systems for 5G networks. The number of resource blocks is increased from one up to twenty to reflect the increase in the number antennas in the large antenna systems. It is observed that the mean throughput of the proposed scheme is improved, and the average mean square error per user is reduced as opposed to the existing schemes.","PeriodicalId":138339,"journal":{"name":"2020 IEEE International RF and Microwave Conference (RFM)","volume":"180 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132797509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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