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2021 IEEE MTT-S International Wireless Symposium (IWS)最新文献

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Deep-learning based noise-resistant broadband signal recovery for fiber-connected radar networks 基于深度学习的抗噪宽带信号恢复，用于光纤连接的雷达网络
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499548
Yuewen Zhou, Fangzheng Zhang, Guanqun Sun, Bindong Gao, S. Pan
{"title":"Deep-learning based noise-resistant broadband signal recovery for fiber-connected radar networks","authors":"Yuewen Zhou, Fangzheng Zhang, Guanqun Sun, Bindong Gao, S. Pan","doi":"10.1109/IWS52775.2021.9499548","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499548","url":null,"abstract":"A deep learning based broadband radar signal recovery method for fiber-connected radar networks is proposed, which is implemented by using a residual convolutional neural network (RCNN) to deal with the defects of analog fiber transmission systems. In order to enhance the robustness of the proposed scheme, a method for training the network with data superimposed with extra noise is also demonstrated, based on which the RCNN is able to compensate for the nonlinear spurs, noises, and signal distortions in low-noise conditions. In the experiment, signal recovery of 3-GHz bandwidth radar echoes after 8-km fiber transmission is realized with the average mean square error (MSE) of the waveforms reduced by ~19 dB, and the dynamic range for maintaining a good pulse compression performance is increased by 35 dB.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126844046","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
Swastika Hole shaped Phononic Crystal for Quality enhancement of Contour Mode Resonators 用于提高轮廓模谐振器质量的万字孔形声子晶体
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499380
Temesgen Bailie Workie, Jiacheng Liu, Zhaohui Wu, Panliang Tang, J. Bao, K. Hashimoto
{"title":"Swastika Hole shaped Phononic Crystal for Quality enhancement of Contour Mode Resonators","authors":"Temesgen Bailie Workie, Jiacheng Liu, Zhaohui Wu, Panliang Tang, J. Bao, K. Hashimoto","doi":"10.1109/IWS52775.2021.9499380","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499380","url":null,"abstract":"This study introduces a novel swastika hole shaped phononic crystal (SH-PnC) with wide acoustic band gap which can effectively hinder the propagation of acoustic energy through it. A delay line is used to check the transmission property of the proposed SH-PnC which shows a magnificent capability with more than 250 dB drop compared to a Si-bar based delay line. The FEM simulation results revealed that its employment on anchoring boundaries improved the Q-anchor $(Q_{anc})$ and Q-unloaded $(Q_{u})$ from 9295 and 7660 to 15450 and 11223 respectively. Furthermore, the insertion loss (IL) and motional resistance $(R_{m})$ are improved from −11.4 dB and 123 Ω to −6 dB and 40 Ω respectively.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123118890","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: 3
Switchable Dual-Band Bandpass Filter with High Selectivity 具有高选择性的可切换双带带通滤波器
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499401
Jinqun Ge, Guoan Wang
{"title":"Switchable Dual-Band Bandpass Filter with High Selectivity","authors":"Jinqun Ge, Guoan Wang","doi":"10.1109/IWS52775.2021.9499401","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499401","url":null,"abstract":"In this paper, a novel switchable dual-band bandpass filter (BPF) with high selectivity is proposed. Half wavelength resonators and open stub loaded resonators are employed to provide third-order filtering responses in each band. By utilizing stepped-impedance open stubs and one-end-shorted couple lines, the individual passband signal can be suppressed independently with switches. In addition, the proposed coupling topology introduces multiple transmission zeros providing high frequency selectivity and good out-of-band rejection. The proposed switchable filter is implemented with two passbands centered at 2.90GHz and 4.79GHz with a low insertion loss of 1.2 dB and 1.1 dB, respectively, providing band-edge steepness over 97.7 dB/GHz. Four operating modes (dual-band, no band, high band, and low band) are achieved by controlling the states of passbands with switches.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121483502","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: 3
High-Efficiency On-Chip Measurement System for Millimeter Wave/Terahertz High-Resolution Phase Shifter 毫米波/太赫兹高分辨率移相器的高效片上测量系统
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499342
Yingjiang Guo, Xianjin Deng, Kaida Xu, Sen Lu, Changxing Lin
{"title":"High-Efficiency On-Chip Measurement System for Millimeter Wave/Terahertz High-Resolution Phase Shifter","authors":"Yingjiang Guo, Xianjin Deng, Kaida Xu, Sen Lu, Changxing Lin","doi":"10.1109/IWS52775.2021.9499342","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499342","url":null,"abstract":"The frequency response of phase shifter could be measured with the help of the vector network analyzer (VNA). But such a method suffers low efficiency when we need to measure millimeter wave (mmWave)/terahertz high-resolution phase shifter, because the operation states of the phase shifter would increase exponentially as the resolution increases, implying longer measurement time. To confront the challenge, in this paper, a high-efficiency on-chip measurement system for the mm Wave/terahertz high-resolution phase shifter is proposed. Based on the VNA and the probe station, we develop a multifunction platform to automatically change the operation state of the under-test phase shifter, and construct the coding to render the PC to control the measurement process. With the utilization of the proposed measurement system, we could finish the measurement of mm Wave/terahertz high-resolution phase shifter in a significantly shorter time.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125292219","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
Domain Knowledge Assisted Training Dataset Generation for Metasurface Designs 面向元表面设计的领域知识辅助训练数据集生成
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499612
Zhaohui We, Zhao Zhou, Yufeng Zhang, Puchu Li, Jian Ren, Ying-Zheng Yin, Gert F. Perdersen, M. Shen
{"title":"Domain Knowledge Assisted Training Dataset Generation for Metasurface Designs","authors":"Zhaohui We, Zhao Zhou, Yufeng Zhang, Puchu Li, Jian Ren, Ying-Zheng Yin, Gert F. Perdersen, M. Shen","doi":"10.1109/IWS52775.2021.9499612","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499612","url":null,"abstract":"Domain knowledge assisted training dataset generation for deep learning aided metasurface designs is investigated. By combining the domain knowledge of metasurface from the designer and the advanced machine learning (ML) technique, an efficient training dataset generation approach has been successfully achieved. Unlike most existing metasurface generative designs that allow for arbitrary target pattern generation, which results in a time-consuming or even nonconvergence model training process, the proposed method takes the full advantages of the prior knowledge from designer to reduce the target solution space greatly, leading to reduced design cycles and higher ex-plainabilities of the designs. The proposed ML model combines generative adversarial network (GAN) and variational autoen-coder (VAE) as an encoder to transfer the original data into the latent space, which greatly improves the design efficiency as demonstrated in the validation results.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122521827","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 Wideband Rat-Race Hybrid Using Combined Slot-Coupled Balun and Power Divider 基于槽耦合Balun和功率分配器的宽带大鼠竞赛混合电路设计
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499500
Haojie Chang, Xuxu Ge, Weixing Sheng, Jie Cui
{"title":"Design of Wideband Rat-Race Hybrid Using Combined Slot-Coupled Balun and Power Divider","authors":"Haojie Chang, Xuxu Ge, Weixing Sheng, Jie Cui","doi":"10.1109/IWS52775.2021.9499500","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499500","url":null,"abstract":"A wideband rat-race hybrid is proposed in this paper. Out-of-phase Marchand balun and in-phase power divider is combined to realize hybrid response with bandwidth enhanced using slot-coupled resonators. A prototype hybrid centered at 3 GHz is fabricated to validate the design. Measured and simulated results are in good agreement, demonstrating that the proposed rat-race hybrid has fractional bandwidth of 64% and 45.2% at ∑- and Δ-port with low insertion loss and imbalance.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115146825","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 Novel Circularly Polarized Antenna with Enhanced Axial-Ratio Bandwidth for Millimeter-wave Application 一种用于毫米波的新型增强轴比带宽圆极化天线
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499378
L. Dai, Yongzhi Zhao, Bing Hu, Yu Zhao
{"title":"A Novel Circularly Polarized Antenna with Enhanced Axial-Ratio Bandwidth for Millimeter-wave Application","authors":"L. Dai, Yongzhi Zhao, Bing Hu, Yu Zhao","doi":"10.1109/IWS52775.2021.9499378","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499378","url":null,"abstract":"A wideband circularly polarized (CP) antenna is proposed for millimeter-wave applications. The basic unit of the array is a novel CP ME-dipole. A differential feeding network composed of SICL is utilized for symmetric radiation pattern of the antenna. A new transition between SICL and rectangular waveguide is also designed for the feeding network. The simulated impedance bandwidth ($vert mathrm{S}_{11}vert leq 15$ dB) and 3-dB axial ratio (AR) bandwidth of the antenna array are 16.5% and 15%, respectively. Besides, the simulated gain of the antenna array is around 12.5 dBi over the operating band.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121854502","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
High-Accuracy WiFi-Based 3D Indoor Positioning Using Non-Uniform Planar Array 基于非均匀平面阵列的高精度wifi室内三维定位
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499545
Wenhao Wu, Bensheng Yang, Haipeng Yu, Haiming Wang
{"title":"High-Accuracy WiFi-Based 3D Indoor Positioning Using Non-Uniform Planar Array","authors":"Wenhao Wu, Bensheng Yang, Haipeng Yu, Haiming Wang","doi":"10.1109/IWS52775.2021.9499545","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499545","url":null,"abstract":"With the development of mobile communication technology, location information has become more and more important for various services. Using a non-uniform planar array (NUPA), a WiFi-based three-dimensional indoor positioning system is proposed. The multiple signal classification (MUSIC) algorithm is utilized to estimate the angle of arrival (AoA) of the direct ray, and then the time of flight is estimated with calibration data. An optimized NUPA is used for the antenna array in the access point. Experimental results show that the proposed positioning system achieves a median positioning error of 0.45 m in a complex indoor environment.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133459302","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
Design and Experimental Validation of Highly Compact Branch-Line Balun For Quad-Band Applications 四波段高紧凑支路平衡器的设计与实验验证
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499527
R. Barik, Q. Cheng, S. Koziel
{"title":"Design and Experimental Validation of Highly Compact Branch-Line Balun For Quad-Band Applications","authors":"R. Barik, Q. Cheng, S. Koziel","doi":"10.1109/IWS52775.2021.9499527","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499527","url":null,"abstract":"In this communication, a novel design approach to design of highly compact quad-band branch-line balun (BLB) is presented along with the implementation and experimental validation of the structure. A quad-band transmission-line is obtained by adding one coupled-line between two-series transmission-lines used to replace the traditional 90° microstrip-lines of a single-band BLB. The even/odd-mode technique is employed to derive the closed-form formulas and facilitate the analysis of the quad-band properties. The proposed concept is verified through fabrication and measurements of a quad-band BLB operating at 1.0, 2.7, 4.1 and 5.8 GHz. The manufactured quad-band BLB provides a reflection coefficient better than −20dB with a magnitude imbalance smaller than 0.45dB. Furthermore, the fabricated prototype (0.051λg2) exhibits a size reduction of 59.2% and 84.9% when compared to a single-band balun (0.125λg2), and the recent quad-band BLB (0.336λg2) reported in the literature, respectively.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133537648","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 CMOS Low-Power Variable-Gain LNA Based on Triple Cascoded Common-Source Amplifiers and Forward-Body-Bias Technology 基于三级联编码共源放大器和正向体偏置技术的CMOS低功耗可变增益LNA
2021 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2021-05-23 DOI: 10.1109/IWS52775.2021.9499444
Hongchen Chen, Haoshen Zhu, Liang Wu, Q. Xue, W. Che
{"title":"A CMOS Low-Power Variable-Gain LNA Based on Triple Cascoded Common-Source Amplifiers and Forward-Body-Bias Technology","authors":"Hongchen Chen, Haoshen Zhu, Liang Wu, Q. Xue, W. Che","doi":"10.1109/IWS52775.2021.9499444","DOIUrl":"https://doi.org/10.1109/IWS52775.2021.9499444","url":null,"abstract":"This paper presents a 15.8-30 GHz CMOS variable-gain LNA based on triple cascoded common-source (CS) amplifiers and forward-body-bias technology. The forward body bias (FBB) is utilized to effectively reduce the threshold voltage of the MOS transistor, and the minimum supply voltage for a MOSFET operating in the saturation region can be relaxed accordingly. Based on above strategy, a triple cascaded CS topology with low power is proposed with a 1.2 V standard power supply in 65-nm CMOS. In addition, the gain of the proposed topology can be adjusted via the body biasing, resulting in a variable-gain LNA successfully. For demonstration, a prototype of 15.8-30GHz variable-gain LNA is designed and fabricated in 65-nm CMOS technology with 0.3 mm2 chip size. The prototype achieves a minimum noise figure of 4.7 dB, a maximum gain of 11.4 dB with 16.4 dB gain tuning range, while consuming only 2.16 mW from a 1.2 V supply.","PeriodicalId":260591,"journal":{"name":"2021 IEEE MTT-S International Wireless Symposium (IWS)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132218531","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
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