Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538123
S. Zheng
Since the vertically installed planar structure is an effective structure which can provide strong coupling strength, it has been widely used to implement different types of devices. However, these work mainly focus on the purely passive components. In this paper, the operating principle, new applications and challenge for vertically installed planar structure are summarized.
{"title":"New Applications of Vertically Installed Planar Structure","authors":"S. Zheng","doi":"10.1109/APCAP.2018.8538123","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538123","url":null,"abstract":"Since the vertically installed planar structure is an effective structure which can provide strong coupling strength, it has been widely used to implement different types of devices. However, these work mainly focus on the purely passive components. In this paper, the operating principle, new applications and challenge for vertically installed planar structure are summarized.","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":"127453515","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538229
N. H. Sulaiman, N. Samsuri, M. Rahim, M. Inam, F. Seman
The compact meander line telemetry antenna is presented for pacemaker applications in the Medical Implant Communication Services (MICS) band (401 - 406 MHz). Initially, the proposed design is simulated and placed in homogenous phantom. Then, Gustav voxel model is used to verify the design performance. The proposed antenna provides peak maximum gain of -24 dBi and -22 dBi in phantom and Gustav voxel model respectively. Moreover, the simulated Effective Isotropically Radiated Power (EIRP) of proposed design is shown to be –25.80 dBm and -32.71 dBm in phantom and Gustav voxel respectively. The estimated EIRP value of this CMLTA satisfies the IEEE standard safety.
{"title":"Low Profile Compact Meander Line Antenna for Pacemaker Applications in MICS Band","authors":"N. H. Sulaiman, N. Samsuri, M. Rahim, M. Inam, F. Seman","doi":"10.1109/APCAP.2018.8538229","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538229","url":null,"abstract":"The compact meander line telemetry antenna is presented for pacemaker applications in the Medical Implant Communication Services (MICS) band (401 - 406 MHz). Initially, the proposed design is simulated and placed in homogenous phantom. Then, Gustav voxel model is used to verify the design performance. The proposed antenna provides peak maximum gain of -24 dBi and -22 dBi in phantom and Gustav voxel model respectively. Moreover, the simulated Effective Isotropically Radiated Power (EIRP) of proposed design is shown to be –25.80 dBm and -32.71 dBm in phantom and Gustav voxel respectively. The estimated EIRP value of this CMLTA satisfies the IEEE standard safety.","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":"117025562","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538267
Z. Zhu, Longhao Cheng, Shanqiang Pei, Z. Gao, Yang Zhu
An automatic sun tracking system for fiber optic lighting is proposed. Using STC89C52RC microcontroller as the core controller, together with the steering gear to control the system daylighting, the system is able to trigger the sun tracking system and auxiliary lighting system automatically for overheating protection and brightness adjustment. A practical sun tracking system with hardware and software is implemented and validated by experiments.
{"title":"An Automatic Sun Tracking System for Fiber Optic Lighting","authors":"Z. Zhu, Longhao Cheng, Shanqiang Pei, Z. Gao, Yang Zhu","doi":"10.1109/APCAP.2018.8538267","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538267","url":null,"abstract":"An automatic sun tracking system for fiber optic lighting is proposed. Using STC89C52RC microcontroller as the core controller, together with the steering gear to control the system daylighting, the system is able to trigger the sun tracking system and auxiliary lighting system automatically for overheating protection and brightness adjustment. A practical sun tracking system with hardware and software is implemented and validated by experiments.","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":"122682234","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538076
Fen Xia, Qingfeng Zhang, Qingfeng Zhang
In this letter, we propose a dual-band filter using open stub-loaded resonators. The dual-band filter is analysed by transmission line theory and the physical dimensions of the structure can be easily deduced for 5G application. Thus, based on full-wave simulation, the proposed design is verified.
{"title":"Dualband Filter with Loaded Stubs for 5G Application","authors":"Fen Xia, Qingfeng Zhang, Qingfeng Zhang","doi":"10.1109/APCAP.2018.8538076","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538076","url":null,"abstract":"In this letter, we propose a dual-band filter using open stub-loaded resonators. The dual-band filter is analysed by transmission line theory and the physical dimensions of the structure can be easily deduced for 5G application. Thus, based on full-wave simulation, the proposed design is verified.","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":"123115436","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538169
W. Tan, Z. Shen
A low-profile four-element antenna array for the purpose of monitoring unmanned aerial vehicles (UAV) is proposed in this paper. The operating frequency of this array is from 430 MHz to 440MHz. Each element is a monopole with a circular top-hat and its height is only 34 mm, which is less than 1/20 wavelength. This antenna array is able to cover the four 90° quadrants in the azimuth plane independently through four feeding ports. To enhance the antenna gain in each quadrant, a Butler matrix is introduced in the feeding network so that the four antenna ports are well isolated and the maximum gain is enhanced by about3 dB. This antenna array is fabricated and the measured results show it is suitable for the specified applications.
{"title":"A Beam-Switched Low-Profile Antenna Array with Butler Matrix","authors":"W. Tan, Z. Shen","doi":"10.1109/APCAP.2018.8538169","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538169","url":null,"abstract":"A low-profile four-element antenna array for the purpose of monitoring unmanned aerial vehicles (UAV) is proposed in this paper. The operating frequency of this array is from 430 MHz to 440MHz. Each element is a monopole with a circular top-hat and its height is only 34 mm, which is less than 1/20 wavelength. This antenna array is able to cover the four 90° quadrants in the azimuth plane independently through four feeding ports. To enhance the antenna gain in each quadrant, a Butler matrix is introduced in the feeding network so that the four antenna ports are well isolated and the maximum gain is enhanced by about3 dB. This antenna array is fabricated and the measured results show it is suitable for the specified applications.","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":"132486940","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538162
K. Saito, T. Nagaoka, Soichi Watanabe
In recent years, many types of mobile communication devices are used in close vicinity of our body. Along with the situation, electromagnetic energy absorption evaluated by specific absorption rate (SAR) radiated from the mobile radio terminal such as cellular phone has been investigated. In this study, changing the point of view,the SAR by a wireless local area network (LAN) router, which is sometimes installed around our body, was evaluated employing numerical calculations. Especially, SAR variation by beam forming function using an array antenna has been studied. As a result, the SAR distributions depending on the beam direction were revealed.
{"title":"SAR Evaluations of Array Antenna for Wireless LAN Router","authors":"K. Saito, T. Nagaoka, Soichi Watanabe","doi":"10.1109/APCAP.2018.8538162","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538162","url":null,"abstract":"In recent years, many types of mobile communication devices are used in close vicinity of our body. Along with the situation, electromagnetic energy absorption evaluated by specific absorption rate (SAR) radiated from the mobile radio terminal such as cellular phone has been investigated. In this study, changing the point of view,the SAR by a wireless local area network (LAN) router, which is sometimes installed around our body, was evaluated employing numerical calculations. Especially, SAR variation by beam forming function using an array antenna has been studied. As a result, the SAR distributions depending on the beam direction were revealed.","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":"130739839","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538091
Z. Huang, Y. Cheng
The design of sparse arrays with a minimum number of elements is an emerging field of study as it can reduce the cost and complexity of near-field antenna arrays. A sequential convex optimization based method is proposed to obtain the op- timal array locations and excitations. A numerical example is presented to show the effectiveness of the proposed method, where the synthesized layout consisted of only 41 elements can achieved the same 3dB beamwidth and peak sidelobe level radi- ated by a uniformly spaced array consisted of121 elements.
{"title":"Maximally Sparse Near-field Shaped Focusing Arrays by Sequential Convex Optimization","authors":"Z. Huang, Y. Cheng","doi":"10.1109/APCAP.2018.8538091","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538091","url":null,"abstract":"The design of sparse arrays with a minimum number of elements is an emerging field of study as it can reduce the cost and complexity of near-field antenna arrays. A sequential convex optimization based method is proposed to obtain the op- timal array locations and excitations. A numerical example is presented to show the effectiveness of the proposed method, where the synthesized layout consisted of only 41 elements can achieved the same 3dB beamwidth and peak sidelobe level radi- ated by a uniformly spaced array consisted of121 elements.","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":"131645535","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538309
Y. Shestopalov, E. Smolkin, M. Snegur
The problem of diffraction of TE polarized EM waves by an open dielectric waveguide with a nonlinear inhomogeneous filling is under consideration. In such problems a nonlinear eigenvalue problem for a system of differential equations is arised. For the numerical solution a method based on the solution of the auxillary Cauchy problem is proposed. Numerical results are presented.
{"title":"TE-polarized Wave Diffraction by a Cylinder Covered with Nonlinear Dielectric Layer","authors":"Y. Shestopalov, E. Smolkin, M. Snegur","doi":"10.1109/APCAP.2018.8538309","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538309","url":null,"abstract":"The problem of diffraction of TE polarized EM waves by an open dielectric waveguide with a nonlinear inhomogeneous filling is under consideration. In such problems a nonlinear eigenvalue problem for a system of differential equations is arised. For the numerical solution a method based on the solution of the auxillary Cauchy problem is proposed. Numerical results are presented.","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":"130681364","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538026
A. Zhao, Fuqiang Ai
To enhance the performance of the 5G mm-wave antenna array, an antenna array based on the T-slot antenna is proposed. It is demonstrated that the 3D radiation pattern can be optimized when the T-slot antenna is adopted. It is also shown that compared to the normal rectangular slot antenna array, the radiation pattern of the T-slot antenna array is more suitable for mobile phone application because the T-slot antenna has more uniform antenna gain.
{"title":"5G mm-Wave Antenna Array Based on T-Slot Antenna for Mobile Terminals","authors":"A. Zhao, Fuqiang Ai","doi":"10.1109/APCAP.2018.8538026","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538026","url":null,"abstract":"To enhance the performance of the 5G mm-wave antenna array, an antenna array based on the T-slot antenna is proposed. It is demonstrated that the 3D radiation pattern can be optimized when the T-slot antenna is adopted. It is also shown that compared to the normal rectangular slot antenna array, the radiation pattern of the T-slot antenna array is more suitable for mobile phone application because the T-slot antenna has more uniform antenna gain.","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":"123742071","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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538028
M. R. Akram, Chong He, Xianling Liang, Jun-ping Geng, R. Jin, Weiren Zhu
We present the design of novel metasurfaces capable of generating converging vortex beams carrying orbital angular momentum (OAM) at microwave frequencies. Isotropic unit cells are used for constructing such metasurfaces, which allows full phase control of 0 - 2 $pi$ with high efficiency. Two typical metasurfaces are designed for the generation of converging beams carrying OAM modes l = 1,2. The proposed metasurfaces are polarization-insensitive and can be applied to both linearly or circularly polarized waves.
{"title":"Polarization-insensitive metasurfaces for generating converging vortex beams carrying orbital angular momentum","authors":"M. R. Akram, Chong He, Xianling Liang, Jun-ping Geng, R. Jin, Weiren Zhu","doi":"10.1109/APCAP.2018.8538028","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538028","url":null,"abstract":"We present the design of novel metasurfaces capable of generating converging vortex beams carrying orbital angular momentum (OAM) at microwave frequencies. Isotropic unit cells are used for constructing such metasurfaces, which allows full phase control of 0 - 2 $pi$ with high efficiency. Two typical metasurfaces are designed for the generation of converging beams carrying OAM modes l = 1,2. The proposed metasurfaces are polarization-insensitive and can be applied to both linearly or circularly polarized waves.","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":"116863612","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}
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