Pub Date : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221496
K. Kaboutari, P. Pinho, A. Oliveira
The purpose of this work is to present a novel design and application for a printed Magneto-Electric Dipole (MED) antenna with a directional pattern and high gain intended for use in the n78-5G NR frequency band implementations. Indeed, the MED antenna should have a resonance frequency of 3.5 GHz and work within the 3.3 to 3.8 GHz range. The electric and magnetic dipoles as well as a reflector ground structure have been formed on an FR4 substrate with a thickness of 1 mm. The manufactured antenna has a 10 dBi stable gain in its frequency band. It also exhibits a S11 of less than -25 dB at a resonance frequency of 3.5 GHz. As a result, a quad Multiple-Input/Multiple-Output (MIMO) structure is designed and fabricated in accordance with the physical specifications of its electrical and mechanical container and the requirements for the application. The fabricated quad-MIMO antennas covering the frequency range of 3.27 to 3.83 GHz achieve 10 dBi gains. As a result of quad-MIMO antennas' unidirectional radiation patterns, there is a greater than 10 dB contrast between the co- and cross-polarized radiation patterns in the main direction of the antenna. Furthermore, aligned and vertical antennas provide isolation of more than 16 dB. The single-element and quad-MIMO MED antennas are analyzed in Computer Simulation Technology (CST) Studio Suite, a high-frequency simulator software.
{"title":"5G Indoor Micro-BTS Antenna Design Using Quad-MIMO MED Antennas","authors":"K. Kaboutari, P. Pinho, A. Oliveira","doi":"10.1109/PIERS59004.2023.10221496","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221496","url":null,"abstract":"The purpose of this work is to present a novel design and application for a printed Magneto-Electric Dipole (MED) antenna with a directional pattern and high gain intended for use in the n78-5G NR frequency band implementations. Indeed, the MED antenna should have a resonance frequency of 3.5 GHz and work within the 3.3 to 3.8 GHz range. The electric and magnetic dipoles as well as a reflector ground structure have been formed on an FR4 substrate with a thickness of 1 mm. The manufactured antenna has a 10 dBi stable gain in its frequency band. It also exhibits a S11 of less than -25 dB at a resonance frequency of 3.5 GHz. As a result, a quad Multiple-Input/Multiple-Output (MIMO) structure is designed and fabricated in accordance with the physical specifications of its electrical and mechanical container and the requirements for the application. The fabricated quad-MIMO antennas covering the frequency range of 3.27 to 3.83 GHz achieve 10 dBi gains. As a result of quad-MIMO antennas' unidirectional radiation patterns, there is a greater than 10 dB contrast between the co- and cross-polarized radiation patterns in the main direction of the antenna. Furthermore, aligned and vertical antennas provide isolation of more than 16 dB. The single-element and quad-MIMO MED antennas are analyzed in Computer Simulation Technology (CST) Studio Suite, a high-frequency simulator software.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129167788","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221431
Zheng Liu, Jinjin Wang, Congguang Mao, Chuanbao Du, Zhizhen Zhu, Xin Nie
High-altitude Electromagnetic Pulse (HEMP) could induce very fast transient pulse on the transmission line or antenna connected with electrical devices. The conducted environment parameters in IEC 61000-2-10 which is used as a guideline for pulse current injection (PCI) of these devices is available by the statistical calculation of all field-to-line couplings. Even all incidence angles and polarization are listed in the calculation above, the incidence field in the calculation is a standard waveform from IEC 61000-2-9 (with rise time of 2.5 ns, pulse width of 23 ns and amplitude of 50 kV/m). In real situation, peak value, rise time and pulse width of radiated field has a variation distribution on the earth's surface depending on the dip angle and height of burst (HOB). However, high calculation cost (hour level) for radiated field is impossible to calculate conducted environment under the consideration of radiated distribution (105 times calculation is required). In this paper, a new method with the combination of Polynomial Chaos (PC) and neural network is used here to make it possible to calculate the conducted environment parameters efficiently. Polynomial Chaos by transferring the uncertainty of field-to-line coupling into the coefficients of polynomial could reduce the total number of calculation and neural network method based on published experimental data speeds up the time cost of the calculation of radiated field distribution from hour level to second level. The numerical result shows that the conducted environment parameters with the consideration of radiated distribution is much more different from IEC 61000-2-10 hence we may need to calculate the specific parameters for the PCI test with different electrical devices.
{"title":"An Efficient Way to Calculate the Conducted Environment with the Consideration of Radiated Distribution","authors":"Zheng Liu, Jinjin Wang, Congguang Mao, Chuanbao Du, Zhizhen Zhu, Xin Nie","doi":"10.1109/PIERS59004.2023.10221431","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221431","url":null,"abstract":"High-altitude Electromagnetic Pulse (HEMP) could induce very fast transient pulse on the transmission line or antenna connected with electrical devices. The conducted environment parameters in IEC 61000-2-10 which is used as a guideline for pulse current injection (PCI) of these devices is available by the statistical calculation of all field-to-line couplings. Even all incidence angles and polarization are listed in the calculation above, the incidence field in the calculation is a standard waveform from IEC 61000-2-9 (with rise time of 2.5 ns, pulse width of 23 ns and amplitude of 50 kV/m). In real situation, peak value, rise time and pulse width of radiated field has a variation distribution on the earth's surface depending on the dip angle and height of burst (HOB). However, high calculation cost (hour level) for radiated field is impossible to calculate conducted environment under the consideration of radiated distribution (105 times calculation is required). In this paper, a new method with the combination of Polynomial Chaos (PC) and neural network is used here to make it possible to calculate the conducted environment parameters efficiently. Polynomial Chaos by transferring the uncertainty of field-to-line coupling into the coefficients of polynomial could reduce the total number of calculation and neural network method based on published experimental data speeds up the time cost of the calculation of radiated field distribution from hour level to second level. The numerical result shows that the conducted environment parameters with the consideration of radiated distribution is much more different from IEC 61000-2-10 hence we may need to calculate the specific parameters for the PCI test with different electrical devices.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"41 20","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131873190","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221249
Peng Mei, G. Pedersen, Shuai Zhang
Reconfigurable intelligent surfaces (RISs) have been envisaged as a key and promising technology for evolved millimeter-wave 5G and upcoming 6G applications to enhance wireless communication channel capacity and quality. RISs are, in general, implemented with an electrically large size that is much larger than the wavelength at the frequency of interest. In some specific indoor application scenarios, such as intelligent factories, intelligent offices, intelligent shopping malls, etc., the users or targets are usually located at the near-field regions of the RISs. In these application scenarios, using RISs to perform near-field communications rather than conventional far-field communications might bring significant benefits. This paper will demonstrate our findings on the characterizations of millimeter-wave reconfigurable intelligent surfaces in the near-field regions, where it is found and concluded that using a near-field focusing RIS can indeed gain some benefits for wireless communications. Some figures of the metric of benefit distance and near-field gain are defined to quantitatively evaluate the benefits gained by the near-field focusing RIS. The findings will provide system-level reference and thumb of the rule of RISs for some indoor application scenarios, where the users are in the near-field region of the RIS.
{"title":"Characterizations of Millimeter-wave Reconfigurable Intelligent Surfaces in the Near-field Region","authors":"Peng Mei, G. Pedersen, Shuai Zhang","doi":"10.1109/PIERS59004.2023.10221249","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221249","url":null,"abstract":"Reconfigurable intelligent surfaces (RISs) have been envisaged as a key and promising technology for evolved millimeter-wave 5G and upcoming 6G applications to enhance wireless communication channel capacity and quality. RISs are, in general, implemented with an electrically large size that is much larger than the wavelength at the frequency of interest. In some specific indoor application scenarios, such as intelligent factories, intelligent offices, intelligent shopping malls, etc., the users or targets are usually located at the near-field regions of the RISs. In these application scenarios, using RISs to perform near-field communications rather than conventional far-field communications might bring significant benefits. This paper will demonstrate our findings on the characterizations of millimeter-wave reconfigurable intelligent surfaces in the near-field regions, where it is found and concluded that using a near-field focusing RIS can indeed gain some benefits for wireless communications. Some figures of the metric of benefit distance and near-field gain are defined to quantitatively evaluate the benefits gained by the near-field focusing RIS. The findings will provide system-level reference and thumb of the rule of RISs for some indoor application scenarios, where the users are in the near-field region of the RIS.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133838043","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10220961
Weiran Li, Xiaochao Liu, Guomin Yang, Ya-Qiu Jin
In this paper, a 2-bit reconfigurable intelligent metasurface element with integrated phase shifters operating at 3.75 GHz is proposed. In order to achieve phase shift of reconfigurable metasurface, the variable size method is most commonly used, but the design is complex and especially difficult in multi-bit design. Therefore, the new design method of separating the radiation structure and the phase-shifting structure is used to reduce design complexity, in which the 2-bit phase difference is controlled independently by the phase-shifting structure. Simulation results show that by controlling three PIN diodes, the proposed unit cell can switch between four states with insertion loss less than 1.4 dB at the operating frequency and reflection phases of 85.25°, −4.28°, −89.9°, 177.95° respectively. This design approach significantly reduces the design complexity of multi-bit metasurfaces and has great potential for multi-bit metasurface design and applications in the future.
{"title":"A 2-bit Reconfigurable Metasurface Element with Integrated Phase Shifters","authors":"Weiran Li, Xiaochao Liu, Guomin Yang, Ya-Qiu Jin","doi":"10.1109/PIERS59004.2023.10220961","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10220961","url":null,"abstract":"In this paper, a 2-bit reconfigurable intelligent metasurface element with integrated phase shifters operating at 3.75 GHz is proposed. In order to achieve phase shift of reconfigurable metasurface, the variable size method is most commonly used, but the design is complex and especially difficult in multi-bit design. Therefore, the new design method of separating the radiation structure and the phase-shifting structure is used to reduce design complexity, in which the 2-bit phase difference is controlled independently by the phase-shifting structure. Simulation results show that by controlling three PIN diodes, the proposed unit cell can switch between four states with insertion loss less than 1.4 dB at the operating frequency and reflection phases of 85.25°, −4.28°, −89.9°, 177.95° respectively. This design approach significantly reduces the design complexity of multi-bit metasurfaces and has great potential for multi-bit metasurface design and applications in the future.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132585112","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221503
Sara Yehia Abdel Fatah, Fatma Taher, T. Elwi, M. F. Abo Sree, Mohammad Alibakhshikenart, B. Virdee, P. Livreri, Naser Ojaroudi Patchin, C. See, Giovanni Pau, I. Dayoub, E. Limiti
In this article, an antenna design is presented based on three horizontally staggered microstrip lines for wearable telemedicine devices. The antenna is excited through a 50-ohm microstrip line. The proposed antenna was fabricated using conductive copper tape of 35μm thickness and printed on a flexible photo paper suitable for telemedicine applications. The proposed antenna has physical dimensions of 40 × 35 ×0.635 mm3. It was designed to operate at the ISM band 2.45 GHz. The proposed antenna design was simulated and optimized using Computer Simulation Technology of Microwave Studio software (CSTMWS). The design of the antenna was then validated through measurement. The results show good agreement between the simulated and measured results. The proposed antenna's performance is evaluated in terms of radiation efficiency, radiation patterns, and return loss. The results confirm the antenna described here is suitable for wearable wireless electronic devices.
{"title":"Flexible Antenna Design for Wearable Telemedicine Applications","authors":"Sara Yehia Abdel Fatah, Fatma Taher, T. Elwi, M. F. Abo Sree, Mohammad Alibakhshikenart, B. Virdee, P. Livreri, Naser Ojaroudi Patchin, C. See, Giovanni Pau, I. Dayoub, E. Limiti","doi":"10.1109/PIERS59004.2023.10221503","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221503","url":null,"abstract":"In this article, an antenna design is presented based on three horizontally staggered microstrip lines for wearable telemedicine devices. The antenna is excited through a 50-ohm microstrip line. The proposed antenna was fabricated using conductive copper tape of 35μm thickness and printed on a flexible photo paper suitable for telemedicine applications. The proposed antenna has physical dimensions of 40 × 35 ×0.635 mm3. It was designed to operate at the ISM band 2.45 GHz. The proposed antenna design was simulated and optimized using Computer Simulation Technology of Microwave Studio software (CSTMWS). The design of the antenna was then validated through measurement. The results show good agreement between the simulated and measured results. The proposed antenna's performance is evaluated in terms of radiation efficiency, radiation patterns, and return loss. The results confirm the antenna described here is suitable for wearable wireless electronic devices.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122329879","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221566
A. Putz, M. Hussels, J. Gienger
When images are recorded using the elastically side-scattered light of spherical micro-particles (“beads”) in an imaging flow cytometer one can often see two or more bright spots rather than an image resembling the outline of the particle, like this would be seen in a bright-field or dark-field microscope. The cause of this effect is not clear - at least in the flow cytometry community. Some common explanations include them being the entry and exit points of the laser beam, possibly in connection with either fluorescence or parasitic scattering at a rough particle surface. Here we show that these bright spots are in fact so called glare points (or glare spots) that are fully explained by the elastically scattered light from a smooth, homogeneous particle and have been know in other fields of optics for many years. However, the common theoretical framework (particles with large size parameter $x > 1000$, small optical apertures) needs to be extended in order to quantitatively describe the glare points seen with high numerical aperture objectives and particle size parameters $xleq 100$ that are common in flow cytometry. The characteristics of the glare-point image (number, shape, position and brightness of points) depend on particle diameter and refractive index, as well as the optics used to form the image. Particularly for small particles $(xleq 50)$, the glare points seem to lie outside of the particle, as we discuss. We show measurements and simulations for polystyrene particles, where this effect is clearly visible and - if not properly taken into account - would significantly affect the results of glare-point based particle sizing.
{"title":"Glare Points in Laser Flow Cytometry","authors":"A. Putz, M. Hussels, J. Gienger","doi":"10.1109/PIERS59004.2023.10221566","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221566","url":null,"abstract":"When images are recorded using the elastically side-scattered light of spherical micro-particles (“beads”) in an imaging flow cytometer one can often see two or more bright spots rather than an image resembling the outline of the particle, like this would be seen in a bright-field or dark-field microscope. The cause of this effect is not clear - at least in the flow cytometry community. Some common explanations include them being the entry and exit points of the laser beam, possibly in connection with either fluorescence or parasitic scattering at a rough particle surface. Here we show that these bright spots are in fact so called glare points (or glare spots) that are fully explained by the elastically scattered light from a smooth, homogeneous particle and have been know in other fields of optics for many years. However, the common theoretical framework (particles with large size parameter $x > 1000$, small optical apertures) needs to be extended in order to quantitatively describe the glare points seen with high numerical aperture objectives and particle size parameters $xleq 100$ that are common in flow cytometry. The characteristics of the glare-point image (number, shape, position and brightness of points) depend on particle diameter and refractive index, as well as the optics used to form the image. Particularly for small particles $(xleq 50)$, the glare points seem to lie outside of the particle, as we discuss. We show measurements and simulations for polystyrene particles, where this effect is clearly visible and - if not properly taken into account - would significantly affect the results of glare-point based particle sizing.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122522348","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221232
L. Rossi, L. Cheng, W. De Jong, R. Jansen, G. Bolognini
A ϑ-OTDR interferometric sensor employing a nonlinear preamplification approach to couneract signal fading is proposed and used to characterize the noise floor for strain values in a survey well in the Netherlands. The characterization shows the system is capable of detecting strain noise levels below 1 nε in the 0.1-100 Hz frequency range.
提出了一种ϑ-OTDR干涉传感器，采用非线性预放大方法来抵消信号衰落，并用于表征荷兰测量井应变值的本底噪声。表征表明，该系统能够在0.1-100 Hz频率范围内检测低于1 ne ε的应变噪声电平。
{"title":"Two-Stage Preamplification for ϑ-OTDR Distributed Acoustic Sensing","authors":"L. Rossi, L. Cheng, W. De Jong, R. Jansen, G. Bolognini","doi":"10.1109/PIERS59004.2023.10221232","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221232","url":null,"abstract":"A ϑ-OTDR interferometric sensor employing a nonlinear preamplification approach to couneract signal fading is proposed and used to characterize the noise floor for strain values in a survey well in the Netherlands. The characterization shows the system is capable of detecting strain noise levels below 1 nε in the 0.1-100 Hz frequency range.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117275051","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221500
¨O. Eri¸s, ¨O. Erg¨ul
We present computational design and analysis of near-zero-index (NZI) shell structures with elliptical cavities, which can provide directional radiation characteristics when excited by isotropic sources. Alternative strategies, such as geometric shaping of internal cavities, using pyramidal textures, and selecting suitable material properties, are employed to create symmetric and asymmetric beams.
{"title":"Computational Design and Analysis of Beam-generating Shells with Elliptical Cavities Made of Near-Zero-Index Materials","authors":"¨O. Eri¸s, ¨O. Erg¨ul","doi":"10.1109/PIERS59004.2023.10221500","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221500","url":null,"abstract":"We present computational design and analysis of near-zero-index (NZI) shell structures with elliptical cavities, which can provide directional radiation characteristics when excited by isotropic sources. Alternative strategies, such as geometric shaping of internal cavities, using pyramidal textures, and selecting suitable material properties, are employed to create symmetric and asymmetric beams.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121458878","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221438
Osama Aziz, Muhibur Rahman
This paper presents a miniaturized four-port MIMO antenna for URLLC and virtual MIMO applications. Virtual MIMO is a novel approach to deploying an energy-efficient sensor network. For networking purposes, this methodology necessitates the use of an omnidirectional, highly efficient, and frequency-sensitive antenna. This article discusses an omnidirectional, polarization mismatch-free, high-gain MIMO antenna. In the antenna module, defected ground structures are used to achieve decoupling of around -40dB between the orthogonal ports. The gain of almost 2.9 dB is achieved having the overall size of the antenna 55× 60 ×1.6 mm3. Because of the optimal performance of the discussed MIMO radiator, it is suitable for virtual MIMO-based wireless sensor applications.
{"title":"Miniaturized Four Port MIMO Antenna for URLLC and Virtual MIMO Applications","authors":"Osama Aziz, Muhibur Rahman","doi":"10.1109/PIERS59004.2023.10221438","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221438","url":null,"abstract":"This paper presents a miniaturized four-port MIMO antenna for URLLC and virtual MIMO applications. Virtual MIMO is a novel approach to deploying an energy-efficient sensor network. For networking purposes, this methodology necessitates the use of an omnidirectional, highly efficient, and frequency-sensitive antenna. This article discusses an omnidirectional, polarization mismatch-free, high-gain MIMO antenna. In the antenna module, defected ground structures are used to achieve decoupling of around -40dB between the orthogonal ports. The gain of almost 2.9 dB is achieved having the overall size of the antenna 55× 60 ×1.6 mm3. Because of the optimal performance of the discussed MIMO radiator, it is suitable for virtual MIMO-based wireless sensor applications.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121636831","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 : 2023-07-03DOI: 10.1109/PIERS59004.2023.10221351
Peng Zhang, Yi Liu, Jin Di Ouyang, Ming Chu Chen, Jun Cheng Gao, Y. Du, M. Tong
In this paper, we present a fully-coupled electromagnetic-thermal-mechanical multiphysics simulation method for the packaging analysis of chips by overcoming the challenges resulting from the miniaturization of packaging structure and inclusion of thermodynamic and mechanical coupling effects. By using the multiphysics object-oriented simulation environment (MOOSE), we achieve a parallel high-performance simulation which employs a hybrid scheme of combining the finite element method (FEM) and the finite-difference time-domain (FDTD) method to minimize computational costs. Numerical experiments demonstrate that the method has a superior efficiency compared to the COMSOL while it can give a consistent result.
{"title":"A Novel Multiphysics Simulation Method for Packaging Analysis of Chips Based on MOOSE","authors":"Peng Zhang, Yi Liu, Jin Di Ouyang, Ming Chu Chen, Jun Cheng Gao, Y. Du, M. Tong","doi":"10.1109/PIERS59004.2023.10221351","DOIUrl":"https://doi.org/10.1109/PIERS59004.2023.10221351","url":null,"abstract":"In this paper, we present a fully-coupled electromagnetic-thermal-mechanical multiphysics simulation method for the packaging analysis of chips by overcoming the challenges resulting from the miniaturization of packaging structure and inclusion of thermodynamic and mechanical coupling effects. By using the multiphysics object-oriented simulation environment (MOOSE), we achieve a parallel high-performance simulation which employs a hybrid scheme of combining the finite element method (FEM) and the finite-difference time-domain (FDTD) method to minimize computational costs. Numerical experiments demonstrate that the method has a superior efficiency compared to the COMSOL while it can give a consistent result.","PeriodicalId":354610,"journal":{"name":"2023 Photonics & Electromagnetics Research Symposium (PIERS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116689714","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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