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2022 International Symposium on Antennas and Propagation (ISAP)最新文献

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Single Layer Unit Cell with reduced phase sensitivity for X-band Reflectarray Applications 具有降低相位灵敏度的单层单元电池，用于x波段反射射线应用
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998720
Panagiotis Ioannis Theoharis, R. Raad, Faisel E. M. Tubbal
{"title":"Single Layer Unit Cell with reduced phase sensitivity for X-band Reflectarray Applications","authors":"Panagiotis Ioannis Theoharis, R. Raad, Faisel E. M. Tubbal","doi":"10.1109/ISAP53582.2022.9998720","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998720","url":null,"abstract":"In this paper a single layer multi-resonant unit cell with a reduced phase sensitivity for X-band wideband reflectarrays is presented. The unit cell employs a Jerusalem cross and four pairs of concentric square loops and is arranged in a rectangular grid. The proposed unit cell achieves a reflection phase response of 426° and a reduced reflected phase sensitivity. This results in low quantization phase errors of ±6.17° and element bandwidth of 13% at 12GHz by considering a 45° margin error. Finally, the proposed unit cell presents linear and parallel phase curves ranging from 10 to 14GHz, showcasing its potential for wideband reflectarrays applications operating in X-band.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122619152","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
Clutter Removal in Ground-Penetrating Radar Images Using Deep Neural Networks 基于深度神经网络的探地雷达图像杂波去除
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998650
Haihan Sun, Wei-Fang Cheng, Zheng Fan
{"title":"Clutter Removal in Ground-Penetrating Radar Images Using Deep Neural Networks","authors":"Haihan Sun, Wei-Fang Cheng, Zheng Fan","doi":"10.1109/ISAP53582.2022.9998650","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998650","url":null,"abstract":"The clutter in ground-penetrating radar (GPR) images obscures and disguises subsurface target reflections, which greatly challenges the accurate target identification. Conventional clutter removal methods suffer from limited clutter removal capability. They either leave residual clutter or deteriorate target reflections. To address the challenges in suppressing clutter in GPR radargrams, we present a deep learning-based method that leverages the powerful learning capability of the deep neural network to remove clutter in diverse real-world scenarios. The network takes the raw GPR radargram as the input, preserves the information related to target reflections and eliminates unwanted clutter features in an encoder-decoder manner, and finally reconstructs the clutter-free radargram. Experimental results demonstrate that the well-trained network successfully removes clutter and restores target reflections with consistent high performance in various real-world scenarios.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131509082","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
A Ku-Band Circular-Polarized Horn Antenna Based on a 3D Printed Polarizer 基于3D打印偏振器的ku波段圆极化喇叭天线
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998662
Yunhao Fu, K. Y. Chan, Sheng Huang, R. Ramer
{"title":"A Ku-Band Circular-Polarized Horn Antenna Based on a 3D Printed Polarizer","authors":"Yunhao Fu, K. Y. Chan, Sheng Huang, R. Ramer","doi":"10.1109/ISAP53582.2022.9998662","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998662","url":null,"abstract":"In this paper, a compact circular-polarized horn antenna is presented, based on a proposed 3D printed polarizer. The antenna consists of a transition between rectangular and circular waveguides, a septum polarizer for liner-to-circular polarization conversion, and a conical horn for radiation. By employing the 3D printing technique, the configuration printed with resin material will behave as the supporting structure, where the outer walls could be copper plated as boundaries; more importantly, the electric property of cured resin is also utilized to form a septum for phase delaying, finally realizing circular polarization (CP). At the feeding port of the designed horn, the simulation shows a superior reflection of -20 dB, covering the entire Ku band from 12 to 18 GHz. Accordingly, the axial ratio (AR) of CP is within 1.4 dB crossing the operational bandwidth, with realized gains between 9.8 and 12.9 dBi. The proposed work has the advantages of an integrated and compact configuration, light weight, and high fabrication accuracy but with low fabrication cost.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"275 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131627627","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
RNN Based Proactive Received Power Prediction Using Latest and Estimated Received Power 基于RNN的主动接收功率预测，利用最新接收功率和估计接收功率
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998604
M. Sasaki, Naoki Shibuya, Kenichi Kawamura, Nobuaki Kuno, M. Inomata, W. Yamada, Takatsune Moriyama
{"title":"RNN Based Proactive Received Power Prediction Using Latest and Estimated Received Power","authors":"M. Sasaki, Naoki Shibuya, Kenichi Kawamura, Nobuaki Kuno, M. Inomata, W. Yamada, Takatsune Moriyama","doi":"10.1109/ISAP53582.2022.9998604","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998604","url":null,"abstract":"We report a method for proactively predicting received power using GRU (Gated Recurrent Unit), which is one of RNN (Recurrent Neural Network) as deep learning. One of the input data of the GRU is the latest received power obtained at the receiver, and another is the pre-estimated received power estimated at the future target position of the receiver. The training and validation data use received power of Wi-Fi measured in an indoor environment. According to the prediction method using the proposed model, the root mean squared error for the validation data is about 1.0 dB for the median received power. The prediction accuracy was improved by 1.7 dB compared with the baseline which uses the latest observed values.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131761853","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
Ka-Band Huygens Array with High Realized Aperture Efficiency for 5G Wireless Applications 面向5G无线应用的高孔径效率ka波段惠更斯阵列
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998783
Wei Lin, R. Ziolkowski
{"title":"Ka-Band Huygens Array with High Realized Aperture Efficiency for 5G Wireless Applications","authors":"Wei Lin, R. Ziolkowski","doi":"10.1109/ISAP53582.2022.9998783","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998783","url":null,"abstract":"This paper presents a Ka-band Huygens antenna array with exceptionally high realized aperture efficiency for 5G wireless applications. The basic radiating element is a $1times 2$ Huygens sub-array realized by two open waveguides and two orthogonally-oriented dipole plates. The dipole plates are connected to the waveguide openings. In this manner, two pairs of Huygens electric and magnetic radiators are formed on the antenna aperture. A reflector with the same size as the radiating aperture is placed below it as a current choke to mitigate the fields scattered from its edges. High aperture efficiency is realized because almost the entire aperture is utilized for the co-polarized radiation. Moreover, an expanded $4times 8$ array is designed whose elements are excited with the same amplitude and phase by a 1 to 32 waveguide feed network. The -10-dB impedance bandwidth covers 11.3% from 26.4 to 29.55 GHz. Within this bandwidth, the peak realized gain value is 22.27 dBi and the peak realized aperture efficiency is 90.4%.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128053118","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
A Low-Profile Direction-Finding Antenna with Deep Null Steering Using High-Impedance Surface 基于高阻抗表面的低轮廓深零转向测向天线
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998661
Jo Tamura, H. Arai
{"title":"A Low-Profile Direction-Finding Antenna with Deep Null Steering Using High-Impedance Surface","authors":"Jo Tamura, H. Arai","doi":"10.1109/ISAP53582.2022.9998661","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998661","url":null,"abstract":"This paper proposes a null-steering antenna that scans a deep null without controlling the amplitudes of the antenna elements. The proposed antenna comprises two dipole antennas and a reflector made by a high-impedance surface (HIS). The antenna characteristics are compared to a conventional patch antenna array to demonstrate that the proposed one is more suitable for a direction-finding antenna. The study clarifies that the HIS makes the antenna height as low as the patch antenna and null depths greater than –30 dB within ±70°. The antenna can be potentially integrated into simple and accurate direction-finding systems due to its compactness and excellent scanning performance at a low cost.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132612963","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
Closed-Path Toroidal-Waveguide Leaky-Wave Antenna with Directive Beam 定向波束闭径环形波导漏波天线
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998742
Shu-Lin Chen, R. Ziolkowski, B. Jones, Y. Guo
{"title":"Closed-Path Toroidal-Waveguide Leaky-Wave Antenna with Directive Beam","authors":"Shu-Lin Chen, R. Ziolkowski, B. Jones, Y. Guo","doi":"10.1109/ISAP53582.2022.9998742","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998742","url":null,"abstract":"Leaky-wave antennas (LWAs) are promising for future wireless systems that demand compactness and seamless integration. Generally, LWAs require a termination load to absorb the power remaining in their waveguide after the excitation wave has propagated beyond their radiating elements. This feature decreases the gain and efficiency of the antenna. To avoid this issue, power recycling is achieved with the innovative closed-path toroidal-waveguide based leaky-wave antenna developed in this work. Two simple coaxial feeds are employed to generate a closed-path traveling wave in the toroidal waveguide. By utilizing a circular array of L-shaped linearly polarized (LP) radiators integrated into this waveguide, the developed LWA realizes a directive beam with a realized gain of 13.2 dBi at 9.75 GHz. A measured prototype confirmed these performance characteristics.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131879244","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
A Dual-Passband Filter with Wide Stopband Based on Quarter-Mode Substrate Integrated Elliptical Waveguide 基于四分之一模衬底集成椭圆波导的宽阻带双通带滤波器
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998593
Rui Wang, Zuxue Xia, Chao Wang, Xin Cao, Rui Cheng
{"title":"A Dual-Passband Filter with Wide Stopband Based on Quarter-Mode Substrate Integrated Elliptical Waveguide","authors":"Rui Wang, Zuxue Xia, Chao Wang, Xin Cao, Rui Cheng","doi":"10.1109/ISAP53582.2022.9998593","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998593","url":null,"abstract":"In this paper, a miniaturized, dual-mode and dual-band (DMDB) filter with wide stopband based on quarter-mode substrate integrated elliptical waveguide (QMSIEW) is designed. QMSIEW is proposed by cutting along the substrate integrated elliptic waveguide (SIEW) magnetic wall. The filter realizes the first and the second passband respectively through the TMco10 and TMs210 modes of QMSIEW. The simulation results show that the frequency ratio of the designed DMDB filter is 2.49. The stopband bandwidth is extended to 2.3210 with a rejection level better than 20dB between the two passbands, and there are 5 transmission zeros (TZs) out of passbands.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134641670","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
A Wideband High Gain Arched Slotted Patch Array Antenna by Substrate-Integrated Coaxial Line 一种基于基片集成同轴线的宽带高增益拱形开槽贴片阵列天线
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/ISAP53582.2022.9998627
Min Wang, Yang Yu, Zhengchuan Chen
{"title":"A Wideband High Gain Arched Slotted Patch Array Antenna by Substrate-Integrated Coaxial Line","authors":"Min Wang, Yang Yu, Zhengchuan Chen","doi":"10.1109/ISAP53582.2022.9998627","DOIUrl":"https://doi.org/10.1109/ISAP53582.2022.9998627","url":null,"abstract":"In this paper, a millimeter-wave wideband high gain arched slotted patch array antenna by substrate-integrated coaxial line (SICL) has been designed. Initially, antenna array is composed of a four-way power divider network and four arched patch elements, and its size is 8.41$lambda_{0} times 4.13lambda_{0} times 0.09lambda_{0}$. Four arched E-shaped slotted patches with different orientations are adopted to improve the impedance bandwidth. A feeding structure is consisted of two two-way T-junctions and a 180° delay line to feed these patches, while the element excites 45° purified linearly polarized wave. Then, three two-way T-junctions with quarter-wavelength impedance transformer as the four-way power divider provide the equal amplitude and uniform phase to each element for maximizing the gain of the array. Over the frequency range of 39.7-44.4 GHz, the return losses are less than 10 dB, and the maximum peak gain is 16.0 dBi. Finally, these simulated results show that the proposed array antenna have the characteristics of high gain and wideband.","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117132989","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
ISAP 2022 Technical Program Committee ISAP 2022技术计划委员会
2022 International Symposium on Antennas and Propagation (ISAP) Pub Date : 2022-10-31 DOI: 10.1109/isap53582.2022.9998691
{"title":"ISAP 2022 Technical Program Committee","authors":"","doi":"10.1109/isap53582.2022.9998691","DOIUrl":"https://doi.org/10.1109/isap53582.2022.9998691","url":null,"abstract":"","PeriodicalId":137840,"journal":{"name":"2022 International Symposium on Antennas and Propagation (ISAP)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123111758","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
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