Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538097
Ke Chen, Guowen Ding, Junming Zhao, Yijun Feng
Dynamic control of microwave is essential for many applications, such as antenna technique, focusing lens, etc. The recent developed metamaterials and metasurfaces provide more degrees of freedom to manipulate the electromagnetic wave through artificially engineered resonators. Here, we incorporate electrical tunable lumped elements into metamaterial and metasurface to dynamically manipulate the microwave. We will show that the chiral metamaterial can provide tunable asymmetric transmission in response to the bias voltage, and the Huygens’ metasurface can dynamically reshape the wavefront in a designable way.
{"title":"Dynamic control of microwave with tunable metamaterial and metasurface","authors":"Ke Chen, Guowen Ding, Junming Zhao, Yijun Feng","doi":"10.1109/APCAP.2018.8538097","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538097","url":null,"abstract":"Dynamic control of microwave is essential for many applications, such as antenna technique, focusing lens, etc. The recent developed metamaterials and metasurfaces provide more degrees of freedom to manipulate the electromagnetic wave through artificially engineered resonators. Here, we incorporate electrical tunable lumped elements into metamaterial and metasurface to dynamically manipulate the microwave. We will show that the chiral metamaterial can provide tunable asymmetric transmission in response to the bias voltage, and the Huygens’ metasurface can dynamically reshape the wavefront in a designable way.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133095194","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.2018.8538245
Muhammad Asad Rahman, E. Nishiyama, I. Toyoda
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{%}.
{"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":"52 1","pages":"0"},"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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538104
Dongwook Kim, Jaehyoung Park, Bumjin Park, Seungyoung Ahn
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.
{"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":"1 1","pages":"0"},"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}
Pub Date : 2018-08-01DOI: 10.1109/APCAP.2018.8538137
Vijay Sharma, M. Hashmi
Two unique configurations of chipless RFID tag are reported in this paper. They consist of integrated Lresonators and cross polarized transmitting and receiving circular patch antennas. The validations of the proposed designs have been carried out using 8-bit data encoded tags, for the frequency band of 3.3–5.8 GHz, and microstrip circular antenna prototypes on Rogers substrate. The measured power difference of more than 15dB between the presence and absence bits, can enable precise detection of bits. These features blended with simple design scheme make them potentially suitable for low power applications such as IoTs and for mass production and deployments.
{"title":"Simple Chipless RFID Tag Configurations","authors":"Vijay Sharma, M. Hashmi","doi":"10.1109/APCAP.2018.8538137","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538137","url":null,"abstract":"Two unique configurations of chipless RFID tag are reported in this paper. They consist of integrated Lresonators and cross polarized transmitting and receiving circular patch antennas. The validations of the proposed designs have been carried out using 8-bit data encoded tags, for the frequency band of 3.3–5.8 GHz, and microstrip circular antenna prototypes on Rogers substrate. The measured power difference of more than 15dB between the presence and absence bits, can enable precise detection of bits. These features blended with simple design scheme make them potentially suitable for low power applications such as IoTs and for mass production and deployments.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134151524","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.2018.8538185
Xingyun Zhang, C. Ruan, Jun Dai, T. Haq
A frequency and radiation pattern reconfigurable antenna based on graphene at terahertz band is presented in this paper. By applying different chemical potentials on the one arm of the proposed antenna while keeping it unchanged of the other arm, the antenna can operate at 1-2 THz, and the obtained maximum impedance bandwidth can be up to 26.68 %. Radiation patterns of the proposed antenna can also be controlled by the applied chemical potentials, which makes it very promising for beam-scanning in terahertz systems or devices.
{"title":"Frequency and Radiation Pattern Reconfigurable Graphene Square Spiral Antenna at Terahertz Band","authors":"Xingyun Zhang, C. Ruan, Jun Dai, T. Haq","doi":"10.1109/APCAP.2018.8538185","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538185","url":null,"abstract":"A frequency and radiation pattern reconfigurable antenna based on graphene at terahertz band is presented in this paper. By applying different chemical potentials on the one arm of the proposed antenna while keeping it unchanged of the other arm, the antenna can operate at 1-2 THz, and the obtained maximum impedance bandwidth can be up to 26.68 %. Radiation patterns of the proposed antenna can also be controlled by the applied chemical potentials, which makes it very promising for beam-scanning in terahertz systems or devices.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134232270","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.2018.8538120
Zhang Qiang, Z. Zhipeng
In this paper the RCS simulation and measurement of FSS radome are present. A Pyramid or diamond shape Asandwich radome is designed aim to simplify modeling. The FSS are embedded within the skins of A-sandwich wall. The RCS of radome without FSS and with FSS are both calculated by commercial software. The experiment is conducted that shows agreement with simulation in contour. It is also found that the RCS reduction of radome is significant when absorbing structure is applied. It has been demonstrated that it is possible to control the RCS of FSS radome by suitable design and validate simulation.
{"title":"Research on RCS of FSS Radome","authors":"Zhang Qiang, Z. Zhipeng","doi":"10.1109/APCAP.2018.8538120","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538120","url":null,"abstract":"In this paper the RCS simulation and measurement of FSS radome are present. A Pyramid or diamond shape Asandwich radome is designed aim to simplify modeling. The FSS are embedded within the skins of A-sandwich wall. The RCS of radome without FSS and with FSS are both calculated by commercial software. The experiment is conducted that shows agreement with simulation in contour. It is also found that the RCS reduction of radome is significant when absorbing structure is applied. It has been demonstrated that it is possible to control the RCS of FSS radome by suitable design and validate simulation.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132023265","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.2018.8538266
Xiaonan Zhao, R. Jin, Jun-ping Geng, Han Zhou, Zhengji Liu, Hang Ji, Xiao Du
In this paper, a spoof surface plasmon polariton (SSPP) conical beam antenna is proposed for haze-detecting mobile station. It is composed of a smoothly connected truncated- cone with multilayered toothed structure along the cylindrical bar. And the antenna combines the whip performance and SSPP effect to construct the conical beam. After optimization of PSO, the antenna achieves impedance bandwidth 20% over 320 MHz ~ 525 MHz, the rotation symmetrical beam covers the upper half space and satisfies the air link gain demands to haze-detecting. The maximum size is $0.39lambda ^{star }0.39lambda ^{star }0.55lambda (phi 365mathrm {m}mathrm {m}^{star }mathrm {h}512.9mathrm {m}mathrm {m})$, which is very compact, lightweight, and being suitable for 3D printing.
本文提出了一种用于雾霾探测移动台的欺骗表面等离子体极化子锥形波束天线。它是由一个沿圆柱杆光滑连接的截锥和多层齿状结构组成的。该天线结合了鞭波特性和SSPP效应来构造锥形波束。优化后的天线阻抗带宽达到20% over 320 MHz ~ 525 MHz, the rotation symmetrical beam covers the upper half space and satisfies the air link gain demands to haze-detecting. The maximum size is $0.39lambda ^{star }0.39lambda ^{star }0.55lambda (phi 365mathrm {m}mathrm {m}^{star }mathrm {h}512.9mathrm {m}mathrm {m})$, which is very compact, lightweight, and being suitable for 3D printing.
{"title":"Design of Spoof Surface Plasmon Polariton Conical Beam Antenna Combining Particle Swarm Optimization for Haze-detecting","authors":"Xiaonan Zhao, R. Jin, Jun-ping Geng, Han Zhou, Zhengji Liu, Hang Ji, Xiao Du","doi":"10.1109/APCAP.2018.8538266","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538266","url":null,"abstract":"In this paper, a spoof surface plasmon polariton (SSPP) conical beam antenna is proposed for haze-detecting mobile station. It is composed of a smoothly connected truncated- cone with multilayered toothed structure along the cylindrical bar. And the antenna combines the whip performance and SSPP effect to construct the conical beam. After optimization of PSO, the antenna achieves impedance bandwidth 20% over 320 MHz ~ 525 MHz, the rotation symmetrical beam covers the upper half space and satisfies the air link gain demands to haze-detecting. The maximum size is $0.39lambda ^{star }0.39lambda ^{star }0.55lambda (phi 365mathrm {m}mathrm {m}^{star }mathrm {h}512.9mathrm {m}mathrm {m})$, which is very compact, lightweight, and being suitable for 3D printing.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131936251","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.2018.8538033
Jianping Li, Linda Shao, Ying Tang, Lei Wang, Yuliang Liang, Liang Liu, Xianling Liang, Jun-ping Geng, Weiren Zhu, R. Jin
A substrate covered holey parallel-plate-waveguide (PPW) is presented for manipulating the propagation of electromagnetic waves. This is achieved by constructing an effective gradient index profile via varying the sizes of holes on one side of the PPW. Size-variable unit lattices are used for achieving a smooth variation of the effective refractive index profile. As an example, a holey PPW with gradient effective index mimicking a convex lens is designed and numerically demonstrated via fullwave simulations.
{"title":"Wave-front manipulation in a substrate covered inhomogeneous holey waveguide","authors":"Jianping Li, Linda Shao, Ying Tang, Lei Wang, Yuliang Liang, Liang Liu, Xianling Liang, Jun-ping Geng, Weiren Zhu, R. Jin","doi":"10.1109/APCAP.2018.8538033","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538033","url":null,"abstract":"A substrate covered holey parallel-plate-waveguide (PPW) is presented for manipulating the propagation of electromagnetic waves. This is achieved by constructing an effective gradient index profile via varying the sizes of holes on one side of the PPW. Size-variable unit lattices are used for achieving a smooth variation of the effective refractive index profile. As an example, a holey PPW with gradient effective index mimicking a convex lens is designed and numerically demonstrated via fullwave simulations.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133459650","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.2018.8538163
Boyu Sima, Ke Chen, Yijun Feng
In this paper, we have designed and fabricated a reflective type 1-bit coding metasurface, which can be used forefciently reducing the backward radar cross section with frequency selective characteristic. Different from conventional diffusion-like metasurfaces, the proposed metasurface only diffuse the scattering wave outside the working frequency band, while at the working frequency it behaves as a mirror surface with specular refection property. Both simulated and experimental results validate that the proposed metasurface has a RCS reduction effect more than 10 dB from 9 GHz to 13.6 GHz and 17 GHz to 20 GHz, while a specular reflection around 15 GHz.
{"title":"Reflective 1-bit Coding Metasurface for Frequency Selective RCS Reduction","authors":"Boyu Sima, Ke Chen, Yijun Feng","doi":"10.1109/APCAP.2018.8538163","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538163","url":null,"abstract":"In this paper, we have designed and fabricated a reflective type 1-bit coding metasurface, which can be used forefciently reducing the backward radar cross section with frequency selective characteristic. Different from conventional diffusion-like metasurfaces, the proposed metasurface only diffuse the scattering wave outside the working frequency band, while at the working frequency it behaves as a mirror surface with specular refection property. Both simulated and experimental results validate that the proposed metasurface has a RCS reduction effect more than 10 dB from 9 GHz to 13.6 GHz and 17 GHz to 20 GHz, while a specular reflection around 15 GHz.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117339626","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.2018.8538204
Zhen-Xing Xia, K. Leung
A gain enhancement method for the rectangular dielectric resonator antenna (RDRA) is studied. A new uniplanar electromagnetic bandgap (EBG) surface is printed around the RDRA. Its reflection coefficient, radiation pattern, and antenna gain are studied and compared with those of a reference DRA without the EBG structure. Simulated results show that the antenna gain can be increased by more than 3.5 dB.
{"title":"Gain Enhancement of Rectangular Dielectric Resonator Antenna Using EBG Surface","authors":"Zhen-Xing Xia, K. Leung","doi":"10.1109/APCAP.2018.8538204","DOIUrl":"https://doi.org/10.1109/APCAP.2018.8538204","url":null,"abstract":"A gain enhancement method for the rectangular dielectric resonator antenna (RDRA) is studied. A new uniplanar electromagnetic bandgap (EBG) surface is printed around the RDRA. Its reflection coefficient, radiation pattern, and antenna gain are studied and compared with those of a reference DRA without the EBG structure. Simulated results show that the antenna gain can be increased by more than 3.5 dB.","PeriodicalId":198124,"journal":{"name":"2018 IEEE Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116446396","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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