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2019 IEEE Asia-Pacific Microwave Conference (APMC)最新文献

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mm-Wave Circular Patch Arrays with Radial Feed Networks 径向馈电网络的毫米波圆形贴片阵列
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038710
E. Hunter, T. Stander, D. D. De Villiers
{"title":"mm-Wave Circular Patch Arrays with Radial Feed Networks","authors":"E. Hunter, T. Stander, D. D. De Villiers","doi":"10.1109/APMC46564.2019.9038710","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038710","url":null,"abstract":"Feed network loss and reactive loading are major sources of inefficiency in mm-wave patch array antennas. To address this, the application of non-resonant radial combiners to antenna feed networks is investigated for a 16-element E-band uniform circular microstrip patch antenna array. The radial feed network is compared in full-wave simulation to a corporate feed network with identical array and element structure. It is found that the feed network with a radial combiner based feed achieved 15% better radiation efficiency and 72% reduced shift in $f_{c}$, at the expense of 89% reduction in −15 dB port impedance bandwidth.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124452079","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
Feature Extraction and Adaption in Micro-Doppler Image Based Concealed Dangerous Object Detection by Millimeter Wave Sensors 基于毫米波传感器微多普勒图像的隐蔽危险目标检测特征提取与自适应
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038878
Zhaoyu Zhang, Xin Di, Yi Xu, Lei Li, Jun Tian
{"title":"Feature Extraction and Adaption in Micro-Doppler Image Based Concealed Dangerous Object Detection by Millimeter Wave Sensors","authors":"Zhaoyu Zhang, Xin Di, Yi Xu, Lei Li, Jun Tian","doi":"10.1109/APMC46564.2019.9038878","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038878","url":null,"abstract":"Recently, public security becomes more and more important in daily life. Terrorists or extremists can attack common people by small objects such as pistol or knife in densely populated place. In previous work, we proposed a micro-Doppler image based method to detect dangerous objects concealed on walking through persons ubiquitously. The accuracy of the proposal is affected by walking velocity. In this paper, we enhance the method in the aspect of feature extraction to overcome such issue. The proposed method can extract and adapt the changeable position of effective feature in the micro-Doppler image. Experimental results show that accuracy of the proposed method is 90% when detect the persons with different walking velocity.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124539060","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
Photonic Controlling THz-Wave Beam Steering with Sub-milliseconds Repetition Period 亚毫秒重复周期光子控制太赫兹波束转向
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038808
Y. Naito, K. Yamauchi, Hiroshi Ito, T. Ishibashi, K. Kato
{"title":"Photonic Controlling THz-Wave Beam Steering with Sub-milliseconds Repetition Period","authors":"Y. Naito, K. Yamauchi, Hiroshi Ito, T. Ishibashi, K. Kato","doi":"10.1109/APMC46564.2019.9038808","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038808","url":null,"abstract":"Beam steering, which enables to concentrate electromagnetic-wave power into a desired direction, is practical way for ultra-high frequency carrier such as terahertz (THz) wave. By utilizing lightwave chromatic dispersion in combination with photomixing, sub-milliseconds repetition-period THz-wave beam steering is demonstrated.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114483064","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
Miniature Wideband Six-Port Network Based on Integrated Passive Device Technology 基于集成无源器件技术的微型宽带六端口网络
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038723
Xuan-Hong Liu, Kuan-chun Huang, Yo-Shen Lin
{"title":"Miniature Wideband Six-Port Network Based on Integrated Passive Device Technology","authors":"Xuan-Hong Liu, Kuan-chun Huang, Yo-Shen Lin","doi":"10.1109/APMC46564.2019.9038723","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038723","url":null,"abstract":"In this paper, a miniature wideband six-port network implemented in a silicon-based integrated passive device process is presented. A very compact circuit size is achieved by using bridged-T coil-based power divider and quadrature hybrid coupler designs. Specifically, the proposed 2-GHz six-port network features a 10-dB input return loss bandwidth of 74.8% and a very compact chip size of 8 mm × 8 mm, which is only about 0.053λ0 × 0.053λ0 at 2 GHz. It can help introduce the six-port technology to handheld mobile applications.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114641576","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
The development of the package of the Terahertz integrated circuits 太赫兹集成电路封装的发展
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038817
Yong Zhang, Yukun Li, Yapei Chen, Huali Zhu
{"title":"The development of the package of the Terahertz integrated circuits","authors":"Yong Zhang, Yukun Li, Yapei Chen, Huali Zhu","doi":"10.1109/APMC46564.2019.9038817","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038817","url":null,"abstract":"This paper attempts to give an overview about the packaging technologies of terahertz monolithic integrated circuits (TMIC) applied to the radar and imaging field for the last few decades. The recent progress of common packaging techniques including metallic waveguide package, low temperature co-fired ceramic and micro-machining technology are introduced to solve challenges of packaging technologies. Furthermore, detailed reports about the metallic split blocks with rectangular waveguide are carried on for its advanced processing technology, great compatibility of flanged connection system and low insertion loss. At last, three package methods about waveguide packaging, namely radial E-plane probes, dipole antenna transitions and flipchip interconnects for terahertz modules are illustrated based on the latest developments.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114952219","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 Coupled Simulation of Synthetic Aperture Radar Image of the Narrow Ship Wake 窄船尾流合成孔径雷达图像的耦合模拟
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/apmc46564.2019.9038822
Min Zhang, Le-tian Wang
{"title":"A Coupled Simulation of Synthetic Aperture Radar Image of the Narrow Ship Wake","authors":"Min Zhang, Le-tian Wang","doi":"10.1109/apmc46564.2019.9038822","DOIUrl":"https://doi.org/10.1109/apmc46564.2019.9038822","url":null,"abstract":"A coupled simulation is implemented to simulate the synthetic aperture radar (SAR) image of the different patterns of the ship wakes. The computational fluid dynamic (CFD) method is utilized to simulate the flow fields of the ship far wakes, which are a little different from the traditional Kelvin wake with a fixed spreading angle. The different modes of the wakes with different Froude numbers of the ships are discussed. The modulation effects of the wakes are considered based on a faceted scattering model and SAR bunching imaging model, respectively. The simulation results shows that the coupled simulation, which is more flexible and reasonable, can be widely used to explain and model the multi-physics issues about the SAR image of ship wakes.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115062833","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 Study on Mixer Measurement Error Based on Vector Network Analyzer 基于矢量网络分析仪的混频器测量误差研究
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038755
Bowei Zhang, L. Tong, Bo Gao, Baoguo Yang, Shubiao Li, Shengli Liang, F. Nian
{"title":"A Study on Mixer Measurement Error Based on Vector Network Analyzer","authors":"Bowei Zhang, L. Tong, Bo Gao, Baoguo Yang, Shubiao Li, Shengli Liang, F. Nian","doi":"10.1109/APMC46564.2019.9038755","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038755","url":null,"abstract":"For a mixer, its input and output spectrums are very complex. In addition to the signal we want (IF signal), there will be many unwanted signals, such as image(IM) signal, feed through signals, and many higher-order products. If the measurement system is not perfectly matched, these signals will be reflected back and lead measurement errors. Today, taking the advantages of VNA, the mismatch errors caused by RF signal and IF signal can be perfectly removed. However, the errors caused by both IM signal and higher-order products mismatch reconversion (IMHPMRC) are always ignored. These errors have been mentioned in some books and papers, but their levels and influence rules are not discussed. In this paper, a mismatch reconversion model (MRCM) based on X-parameters is proposed to investigate the mixer measurement error caused by IMHPMRC quantitatively. The simulation results show that after totally removed the effects of IMHPMRC using our model, the results are matched with its standard values (SV).","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116350343","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
Recently Developed Multiple State Diplexer 最新研制的多态双工器
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038398
Sai‐Wai Wong, Jing-Yu Lin, Lei Zhu
{"title":"Recently Developed Multiple State Diplexer","authors":"Sai‐Wai Wong, Jing-Yu Lin, Lei Zhu","doi":"10.1109/APMC46564.2019.9038398","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038398","url":null,"abstract":"The concept and design of Multiple-state diplexer are explored and investigated recently due to its advantages in multiple duplexing functions integrated in a single circuit. It means that for each of the proposed multiple-state diplexer, two frequency channels can be propagated to the specific other two ports for transmitting/receiving, while the remaining ports will be isolated. Triple-state diplexer (TSD) as the simplest multiple state diplexer structure, is firstly investigated and demonstrated in the planar and waveguide structure. Each channel of the presented multiple state diplexer is followed by filtering synthesis design method so as to achieve higher order response with higher out-of-band attenuation. Simulated and measured results verify the accurate design methodology.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125832324","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-Band Dual-Beam Metasurface Antenna 双频双波束超表面天线
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038648
Lizheng Gu, Wanchen Yang, W. Che
{"title":"A Dual-Band Dual-Beam Metasurface Antenna","authors":"Lizheng Gu, Wanchen Yang, W. Che","doi":"10.1109/APMC46564.2019.9038648","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038648","url":null,"abstract":"A dual-band dual-beam metasurface antenna (MSA) is proposed. The prototype consists of a layer of dual-band metasurface cells and a symmetrical feeding network. The feeding network contains several coupling slots and a two-port bended microstrip line beneath the slots. The simulation shows the backward or forward radiation of the two bands can be achieved simultaneously by a common feeding network. As a result, the lower-band beam angle and gain of the MSA can be up to 47 degree and 10 dBi, respectively. Meanwhile, the higher-band beam angle and gain of MSA are up to 40 degree and 12.5 dBi. The total size of the MSA is 0.75λ0x 2.22 λ0x 0.05 λ0at 3.5 GHz. Compared with conventional dual-band dual-beam antenna arrays, the proposed MSA features low-cost, low-profile, simple and compact design, which can be expected to find potential applications in high-capacity communication system.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125882882","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
Vital Sign Radar with Optimum Antenna Strategy 具有最优天线策略的生命体征雷达
2019 IEEE Asia-Pacific Microwave Conference (APMC) Pub Date : 2019-12-01 DOI: 10.1109/APMC46564.2019.9038813
Zhaolong Li
{"title":"Vital Sign Radar with Optimum Antenna Strategy","authors":"Zhaolong Li","doi":"10.1109/APMC46564.2019.9038813","DOIUrl":"https://doi.org/10.1109/APMC46564.2019.9038813","url":null,"abstract":"Frequency planning and antenna selection are two very important factors governing the architecture, performance and usability of a vital sign detection radar. More often, these two decisions interact each other. This work studies the different choices that can be made when design a radar for such an application. The consequences of different selections are carefully compared and it is found that necessary tradeoffs should be made to achieve a balanced system performance. The combination of 24 GHz and substrate integrated waveguide slot array is proposed, which can provide an optimum approach leading to improved overall radar performance, profile and cost. The antenna array and radar design are explained in detail. A radar prototype for concept-proof is built and in-lab experiments are conducted to verify this approach. The obtained measurement results confirm the proposal favorably, proving its usefulness.","PeriodicalId":162908,"journal":{"name":"2019 IEEE Asia-Pacific Microwave Conference (APMC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125028865","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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