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2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)最新文献

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Quadrature Hybrid Integrated Dual-Circularly Polarized Array Antenna 正交混合集成双圆极化阵列天线
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538245
Muhammad Asad Rahman, E. Nishiyama, I. Toyoda
{"title":"Quadrature Hybrid Integrated Dual-Circularly Polarized Array Antenna","authors":"Muhammad Asad Rahman, E. Nishiyama, I. Toyoda","doi":"10.1109/APCAP.2018.8538245","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538245","url":null,"abstract":"A new dual-circularly polarized array antenna integrated with a quadrature hybrid is presented in this paper. The antenna shows wideband performance due to the wideband characteristic of the quadrature hybrid. Two substrate layers and three metal layers are used to realize the proposed antenna. Bothsided MIC technology is used to distribute the whole feed network on the different substrate layers. Use of this technique leads to compact structure of the proposed array antenna. Two orthogonal modes with quadrature phase shift to excite circular polarization is achieved by using orthogonally fed patches and quadrature hybrid. Moreover, use of quadrature hybrid enables to change the circular polarization sense. The performances of the proposed antenna is experimentally validated and measured axial ratios are more than 9{%}.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133674914","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
Microrobot propulsion force generation using semiconductor based wireless power transfer coils 微型机器人推进力的产生利用基于半导体的无线电力传输线圈
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538104
Dongwook Kim, Jaehyoung Park, Bumjin Park, Seungyoung Ahn
{"title":"Microrobot propulsion force generation using semiconductor based wireless power transfer coils","authors":"Dongwook Kim, Jaehyoung Park, Bumjin Park, Seungyoung Ahn","doi":"10.1109/APCAP.2018.8538104","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538104","url":null,"abstract":"Currently, various kinds of biomedical microrobots have been proposed for medical and industrial applications. In order to maximize the utilization of microrobots, a method of supplying electrical energy by wireless power transfer has been proposed. Nevertheless, one of the critical issues of microrobot is miniaturization. In this paper, we successfully demonstrated 2.6 mm sized microrobot using wireless power transfer system to produce the propulsion force and transfer electric power simultaneously. A micro robot with several millimeters was fabricated using a semiconductor process, which was used in experiments. A 2.6mm$times 2.6$ mm sized spiral coil microrobot have been successfully demonstrated with 2.1mm/s.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134467038","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 Metasurfaced Pyramidal Horn Antenna for Circularly-Polarized Applications 一种用于圆极化的超表面锥体喇叭天线
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538036
Y. Ge, Chengxiu Lin, Kaiting Liu
{"title":"A Metasurfaced Pyramidal Horn Antenna for Circularly-Polarized Applications","authors":"Y. Ge, Chengxiu Lin, Kaiting Liu","doi":"10.1109/APCAP.2018.8538036","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538036","url":null,"abstract":"A high-gain circularly-polarized pyramidal horn antenna is developed by loading a thin metasurface linear-tocircular polarization (LP-CP) converter on the aperture of a standard pyramidal horn. The LP-CP converter is composed of two identical dielectric slabs, sandwiched by three subwavelength metallic element arrays. By placing the metasurface LP-CP converter on the aperture of a standard horn antenna, the linearly-polarized wave emitted by the horn can be converted to be circularly-polarized, without changing much other radiation performance. An example is given of a metasurface LP-CP converter and horn (metahorn) antenna that exhibits high gain and circular polarization. The measurement of this metahorn shows a 3-dB axial ratio bandwidth of 8.7%, with a maximum gain reduction of 2 dB, compared with that of the original airfilled standard pyramidal horn.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115592099","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 Miniaturized Multi-beam Antenna Based on SIW Butler Matrix 基于SIW巴特勒矩阵的小型化多波束天线
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538050
Wei-jun Wu, Zhi-ya Zhang, Yi Mo, Dongdong Wang, Liang Chen
{"title":"A Miniaturized Multi-beam Antenna Based on SIW Butler Matrix","authors":"Wei-jun Wu, Zhi-ya Zhang, Yi Mo, Dongdong Wang, Liang Chen","doi":"10.1109/APCAP.2018.8538050","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538050","url":null,"abstract":"A novel multi-beam antenna based on Butler matrix is designed and realized. In this paper, Butler matrix adopts the substrate integrated waveguide and double layer technology to realize the miniaturization of the network, and the two-layer directional coupler achieves good matching and better flatness in amplitude and phase by using multiple slots, besides, the edge gradient short holes of short slot coupler is adopted to better ensure the equipartition of energy, and inhibit the emergence of TE30. The proposed multi-beam antenna has operation frequency range of 8.0 to 8.5GHz with perfect port matching performance. The maximum gain of the intermediate beam of the antenna reaches 11.2dBi, and the maximum gain of the beam on both sides reaches 10.0dBi with ± 38 ° beam point.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115329821","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
Experimental Study of Diffuse Scattering from Typical Construction Materials over 40-50GHz 典型建筑材料40-50GHz波段漫射散射实验研究
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538250
X. Liao, Y. Shao, Yang Wang, Tao Hu
{"title":"Experimental Study of Diffuse Scattering from Typical Construction Materials over 40-50GHz","authors":"X. Liao, Y. Shao, Yang Wang, Tao Hu","doi":"10.1109/APCAP.2018.8538250","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538250","url":null,"abstract":"This paper presents a measurement campaign of diffuse scattering pattern from six typical construction materials, including granite, marble, plasterboard, wooden board, rough stone and ceramic tile over a frequency range from 40 GHz to 50 GHz using relatively simple measurement setup. Analysis of the experimental results indicates that diffuse scattering is concentrated around specular reflection direction and has a much greater impact on received power at slant incidence mode than normal incidence mode at 45 GHz. The measured results can be applied in ray-tracing tool to predict mm-Wave propagation for future wireless communication.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115348826","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 Broadband and Wide-angle Band-stop Frequency Selective Surface (FSS) Based on Dual-layered Fractal Square Loops 基于双层分形方形环的宽带广角带阻频率选择表面
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538156
X. Xie, W. Fang, Ping Chen, Y. Poo, Ruixin Wu
{"title":"A Broadband and Wide-angle Band-stop Frequency Selective Surface (FSS) Based on Dual-layered Fractal Square Loops","authors":"X. Xie, W. Fang, Ping Chen, Y. Poo, Ruixin Wu","doi":"10.1109/APCAP.2018.8538156","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538156","url":null,"abstract":"In this work, a broadband and wide-angle band-stop FSS based on dual-layered periodic arrays of fractal square loops was proposed and demonstrated. Equivalent circuit model and full-wave electromagnetic simulation were used to analyze this FSS. The sample of designed FSS with optimized structure parameters for center working frequency about 13GHz was fabricated and measured. The experimental results agree well with the simulated ones. Both of them indicated that the FSS has broad stop bands for both TE and TM polarization under incident angles from 0° to 60°. Specifically, the stop bands under incident angle 60° are over 7.35GHz and 5.91GHz for TE and TM polarization, respectively.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115702893","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: 6
Synthesis of Subarrayed Linear Array via l1-norm Minimization Compressed Sensing Method 基于11范数最小化压缩感知的子阵列线性阵列综合
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538246
Xiaowen Zhao, Qingshan Yang, Yunhua Zhang, Yunhua Zhang
{"title":"Synthesis of Subarrayed Linear Array via l1-norm Minimization Compressed Sensing Method","authors":"Xiaowen Zhao, Qingshan Yang, Yunhua Zhang, Yunhua Zhang","doi":"10.1109/APCAP.2018.8538246","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538246","url":null,"abstract":"A novel method is proposed for synthesizing subar-rayed linear array using as few subarrays as possible. According to Compressed Sensing theory, the synthesis herein can be for- mulated as a convex problem with $l_{1}$norm minimization by de- veloping a sparse basis, which benefits from the fact that the element weighting vector is compressible and has a sparse representation. In this way, the corresponding parameters including the number of subarrays, the subarray weights and sizes can be optimized simultaneously by sequential convex optimization. The proposed method is very easy to implement and has good computational efficiency. Numerical experiments are carried out to show the performance of the proposed method.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115006419","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: 5
Study of the Cold Impedance Characteristic of Folded-waveguide SWSs 折叠波导SWSs冷阻抗特性研究
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538207
Weizhong Yan, X. Bai, Yuntao Sun, Pengcheng Hu, Yunxian Tian, Yu-Lu Hu
{"title":"Study of the Cold Impedance Characteristic of Folded-waveguide SWSs","authors":"Weizhong Yan, X. Bai, Yuntao Sun, Pengcheng Hu, Yunxian Tian, Yu-Lu Hu","doi":"10.1109/APCAP.2018.8538207","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538207","url":null,"abstract":"The impedance characteristic of folded-waveguide (FW) slow-wave structure (SWS) is studied in this paper. The impedance parameters are determined by the high-frequency parameters, especially the digital electromagnetic field data from a high-frequency structure simulator. After the analysis of the gap impedance of different radii and different angles, the formula of interaction impedance is presented. Finally, the coupling impedance is studied and compared with the interaction impedance. The method can be applied to other complex SWSs that lack of effective analytical methods.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115168426","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
Flexible Ink-printable Wideband Log-periodic Dipole Array Antenna for 5G Applications 用于5G应用的柔性油墨可打印宽带对数周期偶极子阵列天线
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538041
E. Li, Xue Jun Li, Boon-Chong Seet, Xiaoyou Lin
{"title":"Flexible Ink-printable Wideband Log-periodic Dipole Array Antenna for 5G Applications","authors":"E. Li, Xue Jun Li, Boon-Chong Seet, Xiaoyou Lin","doi":"10.1109/APCAP.2018.8538041","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538041","url":null,"abstract":"This paper presents a novel flexible ink-printable log-periodic wideband dipole array (LPDA) antenna for highband 5G applications. The antenna is fed by microstrip line through a wideband microstrip-to-coplanar stripline (CPS) balun. The antenna gain enhancement is achieved by adding three directors of decreasing length, based on the principle of Yagi-Uda antenna. The antenna gain remains≥ 9.74 dBi over the whole operating frequency range of 23-28.5 GHz. The 10-dB bandwidth of the antenna is 21.8%, covering desired frequencies of 24.5 GHz and 28 GHz.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124768824","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
Influence Analysis of ZrO2 Ceramic for Cellular Phones on 5G mm-Wave Antenna Performance 手机用ZrO2陶瓷对5G毫米波天线性能的影响分析
2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP) Pub Date : 2018-08-01 DOI: 10.1109/APCAP.2018.8538130
Huan-Chu Huang, Yijin Wang, Xianjing Jian
{"title":"Influence Analysis of ZrO2 Ceramic for Cellular Phones on 5G mm-Wave Antenna Performance","authors":"Huan-Chu Huang, Yijin Wang, Xianjing Jian","doi":"10.1109/APCAP.2018.8538130","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538130","url":null,"abstract":"In this paper, the influences of ZrO<inf>2</inf> ceramic on the fifth generation mobile communications (5G) millimeter-wave (mm-Wave) antenna performance are studied. A 28-GHz 2 × 2 non-stacked patch antenna array and a 28-GHz 2 ×2 stacked patch antenna array are designed on dielectric substrates as the performance baseline. Based on the two types of antenna arrays, various ZrO<inf>2</inf> ceramic thicknesses and various gaps between the ZrO<inf>2</inf> ceramic and the antenna arrays are simulated to get quick understanding of the ZrO<inf>2</inf> ceramic influence on the antenna performance. From the simulated results, it can be found that the ZrO<inf>2</inf> ceramic has different influences on different types of antenna arrays. Besides, for both of the two types of antenna arrays, when the thicknesses of ZrO<inf>2</inf> ceramic are close or equal to integer multiples of 0.5 guided wavelengths (λ<inf>g</inf>), the antenna performance in the material-loading cases gets close to that in the free space (FS). Also, when the thicknesses of ZrO<inf>2</inf> ceramic are close or equal to odd multiples of 0.25 (λ<inf>g</inf>) and the gaps between the ZrO<inf>2</inf> ceramic and the antenna array are close or equal to integer multiples 0.5 FS wavelengths (λ<inf>g</inf>), the focusing effects of electromagnetic (EM) beams get significant for both arrays. The findings comply with the EM wave propagation theory and can be applied to radome designs of Terahertz (THz) antenna arrays.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124927538","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: 7
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