Pub Date : 2021-11-28DOI: 10.1109/iwem53379.2021.9790661
Yingsong Li, Yinfeng Xia, Tao Jiang
A consideration for super low frequency (SLF) antenna design is proposed on the basis of the piezoelectric material, which is to reduce the size of traditional SLF antenna designed using metal. The proposed SLF antenna design is realized by using voltage to excite different modes of the piezoelectric material to give mechanical waves and then to produce electromagnetic wave. The proposed SLF antenna has a very compact size of hundred millimeters. Different materials are investigated to discuss the effect on the resonance frequency, while the different modes are also analyzed to control the resonate frequency. The results show that the proposed SLF antenna can be flexibly designed for implementing at expected acoustic frequency bands.
{"title":"Acoustics Driven Antennas for SLF Communication Applications","authors":"Yingsong Li, Yinfeng Xia, Tao Jiang","doi":"10.1109/iwem53379.2021.9790661","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790661","url":null,"abstract":"A consideration for super low frequency (SLF) antenna design is proposed on the basis of the piezoelectric material, which is to reduce the size of traditional SLF antenna designed using metal. The proposed SLF antenna design is realized by using voltage to excite different modes of the piezoelectric material to give mechanical waves and then to produce electromagnetic wave. The proposed SLF antenna has a very compact size of hundred millimeters. Different materials are investigated to discuss the effect on the resonance frequency, while the different modes are also analyzed to control the resonate frequency. The results show that the proposed SLF antenna can be flexibly designed for implementing at expected acoustic frequency bands.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116917444","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}
A filtering planar magnetoelectric (ME) dipole antenna is proposed. The proposed ME-dipole antenna is made up of a half-wave dipole used as the electric dipole, a quarter-wave patch with both ends short-circuited used as the magnetic dipole. The electric and magnetic dipoles are placed at the same level of the substrate and fed simultaneously. In addition, a U-shaped metal plate is set below the substrate to introduce a upper stopband radiation null, a symmetric open-ended quarter-wave microstrips printed below the magnetic dipole to produce a lower stopband radiation null. Thus, the proposed antenna expresses good bandpass filtering response. Simulation results declare that the proposed antenna operates at 1.89 GHz with good selectivity, similar radiation patterns at both E and H plane and 6.3% impedance bandwidth from 1.83 to 1.95 GHz..
{"title":"A filtering planar magnetoelectric dipole antenna","authors":"Xian‐Jing Lin, Ke-Lin Yu, Qing-Guang Gu, Miaowang Zeng, Yan-Yu Ding, Jie Huang","doi":"10.1109/iWEM53379.2021.9790545","DOIUrl":"https://doi.org/10.1109/iWEM53379.2021.9790545","url":null,"abstract":"A filtering planar magnetoelectric (ME) dipole antenna is proposed. The proposed ME-dipole antenna is made up of a half-wave dipole used as the electric dipole, a quarter-wave patch with both ends short-circuited used as the magnetic dipole. The electric and magnetic dipoles are placed at the same level of the substrate and fed simultaneously. In addition, a U-shaped metal plate is set below the substrate to introduce a upper stopband radiation null, a symmetric open-ended quarter-wave microstrips printed below the magnetic dipole to produce a lower stopband radiation null. Thus, the proposed antenna expresses good bandpass filtering response. Simulation results declare that the proposed antenna operates at 1.89 GHz with good selectivity, similar radiation patterns at both E and H plane and 6.3% impedance bandwidth from 1.83 to 1.95 GHz..","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123494605","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 : 2021-11-28DOI: 10.1109/iwem53379.2021.9790560
Qinyuan Hu, Chunlai Jia, Gui Wang, Rushan Chen
In this paper, a fast analysis method based on the method of moments (MoM) for dynamic array is proposed. The distances between array elements are changed with the time. The vector potential term and the scalar potential term in electric field integral equation (EFIE) are treated separately to achieve the fast analysis of radar cross section (RCS). An example of the unmanned aerial vehicle (UAV) array is given to show that the proposed method can significantly reduce the calculation time with encouraging accuracy.
{"title":"A Fast Analysis Method for Dynamic Array structures","authors":"Qinyuan Hu, Chunlai Jia, Gui Wang, Rushan Chen","doi":"10.1109/iwem53379.2021.9790560","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790560","url":null,"abstract":"In this paper, a fast analysis method based on the method of moments (MoM) for dynamic array is proposed. The distances between array elements are changed with the time. The vector potential term and the scalar potential term in electric field integral equation (EFIE) are treated separately to achieve the fast analysis of radar cross section (RCS). An example of the unmanned aerial vehicle (UAV) array is given to show that the proposed method can significantly reduce the calculation time with encouraging accuracy.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123719453","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 : 2021-11-28DOI: 10.1109/iwem53379.2021.9790500
Lilian Fan, Y. Hongxi, Ling Xiaoxiao
Higher order modulation is widely used in modern Communication systems such as OFDM and CA which lead to high peak to average power ratio (PAPR). It's crucial for radio frequency (RF) power amplifiers (PAs) to maintain high efficiency not only at saturation, but also output power back-off working condition. Sequential Power Amplifier (SPA) is a technique proposed in recent years to reach these demands. Based on academic researches, the development of broadband high-efficiency SPA is reviewed. Finally, the developing trend of SPA is presented.
{"title":"Development Overview of Sequential Power Amplifiers","authors":"Lilian Fan, Y. Hongxi, Ling Xiaoxiao","doi":"10.1109/iwem53379.2021.9790500","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790500","url":null,"abstract":"Higher order modulation is widely used in modern Communication systems such as OFDM and CA which lead to high peak to average power ratio (PAPR). It's crucial for radio frequency (RF) power amplifiers (PAs) to maintain high efficiency not only at saturation, but also output power back-off working condition. Sequential Power Amplifier (SPA) is a technique proposed in recent years to reach these demands. Based on academic researches, the development of broadband high-efficiency SPA is reviewed. Finally, the developing trend of SPA is presented.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122017796","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 : 2021-11-28DOI: 10.1109/iwem53379.2021.9790376
Hongcheng Zhang, Lei Li, Xu Yan
A broadband circularly polarized (CP) antenna is designed in this letter. The antenna mainly consists of two parts, one is the driver patch, the other is the parasitic patch. By cutting the corner perturbation of the drive patch, CP radiation is generated. In order to further broaden the circular polarization bandwidth. Two pairs of parasitic patches are introduced, by changing the distance between patches, the two new Axial ratio (AR) minima poles are introduced, thereby broadening the circular polarization bandwidth. After the proposed antenna is finally optimized, its -10dB impedance bandwidth can reach 30.9%, and its 3dB AR bandwidth can reach 12.6%.
{"title":"A Novel Low Profile Broadband Circularly Polarized Patch Antenna","authors":"Hongcheng Zhang, Lei Li, Xu Yan","doi":"10.1109/iwem53379.2021.9790376","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790376","url":null,"abstract":"A broadband circularly polarized (CP) antenna is designed in this letter. The antenna mainly consists of two parts, one is the driver patch, the other is the parasitic patch. By cutting the corner perturbation of the drive patch, CP radiation is generated. In order to further broaden the circular polarization bandwidth. Two pairs of parasitic patches are introduced, by changing the distance between patches, the two new Axial ratio (AR) minima poles are introduced, thereby broadening the circular polarization bandwidth. After the proposed antenna is finally optimized, its -10dB impedance bandwidth can reach 30.9%, and its 3dB AR bandwidth can reach 12.6%.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122177418","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 : 2021-11-28DOI: 10.1109/iwem53379.2021.9790516
Zhe Zhou, Huafeng Su, Bo Yang, Shangkun Wu, Xiu Yin Zhang
This paper designs a reconfigurable holographic antenna, using the SIW waveguide with 480 preinstalled slots fed by a serial-fed waveguide. The PIN diodes are installed in the slots in order to control the working states of the slots according to the holographic interference pattern. It can be obtained from the simulation results that the holographic antenna can be used to scan from -45° to 45° in the elevation direction over the band 26.5 to 28.5 GHz; the maximum gain is 11.4~14.1dBi. As shown by the simulation result, the designed antenna puts up a good performancein beamforming for the 5G system.
{"title":"Digital encoding holographic antenna based on SIW waveguide","authors":"Zhe Zhou, Huafeng Su, Bo Yang, Shangkun Wu, Xiu Yin Zhang","doi":"10.1109/iwem53379.2021.9790516","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790516","url":null,"abstract":"This paper designs a reconfigurable holographic antenna, using the SIW waveguide with 480 preinstalled slots fed by a serial-fed waveguide. The PIN diodes are installed in the slots in order to control the working states of the slots according to the holographic interference pattern. It can be obtained from the simulation results that the holographic antenna can be used to scan from -45° to 45° in the elevation direction over the band 26.5 to 28.5 GHz; the maximum gain is 11.4~14.1dBi. As shown by the simulation result, the designed antenna puts up a good performancein beamforming for the 5G system.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124679621","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 : 2021-11-28DOI: 10.1109/iwem53379.2021.9790626
Jinyuan Cui, Xiaoyu Wang, F. Feng, Shuxia Yan, Qi-jun Zhang
The neuro-TF methods are widely used for electromagnetic (EM) parametric modeling. The paper looks back the recent research progress in optimization based on the neuro-TF. Two neuro-TF methods we have proposed in the paper, include neuro-TF method with pole/residue format and neuro-TF method with hybrid format. The effectiveness of these methods are verified by two parametric modeling examples of a coupled-line filter and a four-pole waveguide filter.
{"title":"Recent Advances in Neuro-TF Methods with Different Format for EM Parametric Modeling","authors":"Jinyuan Cui, Xiaoyu Wang, F. Feng, Shuxia Yan, Qi-jun Zhang","doi":"10.1109/iwem53379.2021.9790626","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790626","url":null,"abstract":"The neuro-TF methods are widely used for electromagnetic (EM) parametric modeling. The paper looks back the recent research progress in optimization based on the neuro-TF. Two neuro-TF methods we have proposed in the paper, include neuro-TF method with pole/residue format and neuro-TF method with hybrid format. The effectiveness of these methods are verified by two parametric modeling examples of a coupled-line filter and a four-pole waveguide filter.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"volume1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129706832","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 : 2021-11-28DOI: 10.1109/iwem53379.2021.9790630
Xue Ren, Q. Lin, Qingyi Guo, Wenlong He, H. Wong, S. Liao, Q. Xue
This paper introduces a fan-beam antenna using gradient refractive index metasurface. The unit cell of the metamaterial lens is composed of four rectangular rings. The proposed lens is composed of impedance matching layer and core layer. They both contribute to the fan-beam generation. Moreover, impedance matching layer is used to enhance the radiation efficiency of the lens and reduce the lens height. The realized lens is with height of about 0.24 λ0, where λ0 is the wavelength at 10 GHz in free space. The reflection coefficient is lower than -12 dB from 7 to 13 GHz. The results show that the 3 dB beamwidths on E and H-plane are 18o and 40o, respectively. Meantime, the realized gain is about 16.4 at center frequency.
{"title":"Design of Fan-Beam Antenna Using High Refractive Index Metasurface","authors":"Xue Ren, Q. Lin, Qingyi Guo, Wenlong He, H. Wong, S. Liao, Q. Xue","doi":"10.1109/iwem53379.2021.9790630","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790630","url":null,"abstract":"This paper introduces a fan-beam antenna using gradient refractive index metasurface. The unit cell of the metamaterial lens is composed of four rectangular rings. The proposed lens is composed of impedance matching layer and core layer. They both contribute to the fan-beam generation. Moreover, impedance matching layer is used to enhance the radiation efficiency of the lens and reduce the lens height. The realized lens is with height of about 0.24 λ0, where λ0 is the wavelength at 10 GHz in free space. The reflection coefficient is lower than -12 dB from 7 to 13 GHz. The results show that the 3 dB beamwidths on E and H-plane are 18o and 40o, respectively. Meantime, the realized gain is about 16.4 at center frequency.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"364 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126964217","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 : 2021-11-28DOI: 10.1109/iwem53379.2021.9790675
Kuan-Hua Huang, Wen‐Shan Chen
The eight-port massive MIMO antennas of USB device for 5G C-band is proposed and investigated. The overall size of the design is 71 × 28 × 5.8 mm3. The design is implemented on the FR4 substrate with permittivity of 4.4 and thickness of 0.8 mm. The antennas are designed with open slot structures on the metal frame and the parasitic elements with cross shaped strips are placed in the middle of the antenna as the isolation mechanism. According to the results, The S parameters are all less than -10 dB with the 5G C-band and the isolations are all larger than 10 dB and the ECC are all less than 0.3. The design could be applied the band of 5G C-band and good performances is good for application of USB dongle devices with 8 × 8 massive MIMO antennas.
{"title":"Eight-Port Massive MIMO Antennas of USB Device for 5G C-Band","authors":"Kuan-Hua Huang, Wen‐Shan Chen","doi":"10.1109/iwem53379.2021.9790675","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790675","url":null,"abstract":"The eight-port massive MIMO antennas of USB device for 5G C-band is proposed and investigated. The overall size of the design is 71 × 28 × 5.8 mm3. The design is implemented on the FR4 substrate with permittivity of 4.4 and thickness of 0.8 mm. The antennas are designed with open slot structures on the metal frame and the parasitic elements with cross shaped strips are placed in the middle of the antenna as the isolation mechanism. According to the results, The S parameters are all less than -10 dB with the 5G C-band and the isolations are all larger than 10 dB and the ECC are all less than 0.3. The design could be applied the band of 5G C-band and good performances is good for application of USB dongle devices with 8 × 8 massive MIMO antennas.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132479928","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 : 2021-11-28DOI: 10.1109/iwem53379.2021.9790622
Peng Lyu, Wei Wang, Huijie Yang, Yan Li, He Zhang, Zhiwei Fu, Lei Yang
In the paper, a splicing curved surface conformal phased array antenna is presented for wide coverage. The proposed antenna is composed of splicing electromechanical-thermal integrated modulus, which not only realizes fast frameless splicing and overall size adjustable but also achieves certain flexibility and versatility. Moreover, an S-band multi-beam spherical phased array antenna is built based on the splicing method, and the electrical performance is validated via electromagnetic simulation. The results indicate that the proposed design has the potential for modern wireless communication systems.
{"title":"Design of splicing conformal phased array antenna for wide coverage","authors":"Peng Lyu, Wei Wang, Huijie Yang, Yan Li, He Zhang, Zhiwei Fu, Lei Yang","doi":"10.1109/iwem53379.2021.9790622","DOIUrl":"https://doi.org/10.1109/iwem53379.2021.9790622","url":null,"abstract":"In the paper, a splicing curved surface conformal phased array antenna is presented for wide coverage. The proposed antenna is composed of splicing electromechanical-thermal integrated modulus, which not only realizes fast frameless splicing and overall size adjustable but also achieves certain flexibility and versatility. Moreover, an S-band multi-beam spherical phased array antenna is built based on the splicing method, and the electrical performance is validated via electromagnetic simulation. The results indicate that the proposed design has the potential for modern wireless communication systems.","PeriodicalId":141204,"journal":{"name":"2021 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130817927","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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