Pub Date : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559825
Itthinat Jongsuebchoke, D. Torrungrueng, S. Kittiwittayapong, P. Akkaraekthalin
Integral equations (IEs) have been commonly used in solving electromagnetic problems. Thus, it is important to expose undergraduate students to IEs by illustrating with familiar, simple and intuitive examples. Using uncoupled IEs to solve transmission line (TL) problems as an example for undergraduate students was proposed in the literature, but a mathematical complexity still remains, which should be avoided for the introductory course on IEs. In this paper, solving TL problems using coupled IEs and the method of moments (MM) is proposed instead to further reduce the mathematical complexity and gain better understanding of the coupled nature of associated voltage and current distributed along TLs. Several numerical examples for different load terminations are given to illustrate that the coupled IEs with the MM can provide accurate results indeed.
{"title":"Solving Transmission-Line (TL) Problems Using Simple Coupled Integral Equations and the Method of Moments (MM) for Undergraduate Education","authors":"Itthinat Jongsuebchoke, D. Torrungrueng, S. Kittiwittayapong, P. Akkaraekthalin","doi":"10.1109/RI2C51727.2021.9559825","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559825","url":null,"abstract":"Integral equations (IEs) have been commonly used in solving electromagnetic problems. Thus, it is important to expose undergraduate students to IEs by illustrating with familiar, simple and intuitive examples. Using uncoupled IEs to solve transmission line (TL) problems as an example for undergraduate students was proposed in the literature, but a mathematical complexity still remains, which should be avoided for the introductory course on IEs. In this paper, solving TL problems using coupled IEs and the method of moments (MM) is proposed instead to further reduce the mathematical complexity and gain better understanding of the coupled nature of associated voltage and current distributed along TLs. Several numerical examples for different load terminations are given to illustrate that the coupled IEs with the MM can provide accurate results indeed.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123323899","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559793
C. Joochim, P. Keeratiwintakorn
Industrial now a day has become more active in automation system. Both in terms of cost reduction, price, human error, quality as well as the introduction of automatic system technology. It able to work with the least manual labor required but quick and efficient. Today, the technology of automation and industrial robots is increasingly playing a role in the industry. It can work for human beings in various fields such as lifting products from production lines, assembly work, packing products. Work with repetitive processes, tasks that require the same quality standards. It can be seen that before the introduction of automation technology. To be used in industrial plants will require a lot of labor. It costs more to hire than automation and industrial robots to work instead of humans. This paper use automation system and industrial robot to sorting the equipment. It focuses on speed, accuracy and efficiency. Digital image processing is used to classify the text on equipment and shape of the equipment.
{"title":"Automatic Sorting Machine Using Industrial Robot and Digital Image Processing","authors":"C. Joochim, P. Keeratiwintakorn","doi":"10.1109/RI2C51727.2021.9559793","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559793","url":null,"abstract":"Industrial now a day has become more active in automation system. Both in terms of cost reduction, price, human error, quality as well as the introduction of automatic system technology. It able to work with the least manual labor required but quick and efficient. Today, the technology of automation and industrial robots is increasingly playing a role in the industry. It can work for human beings in various fields such as lifting products from production lines, assembly work, packing products. Work with repetitive processes, tasks that require the same quality standards. It can be seen that before the introduction of automation technology. To be used in industrial plants will require a lot of labor. It costs more to hire than automation and industrial robots to work instead of humans. This paper use automation system and industrial robot to sorting the equipment. It focuses on speed, accuracy and efficiency. Digital image processing is used to classify the text on equipment and shape of the equipment.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125792410","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559772
Busarin Visitsilp, Nalinpat Bhumpenpein
Information technology has become an integral part of the main task enhancing organizations success. The results are in line with the goals set by many organizations, both in the government and private sectors, for a better recognition of the significance on information technology work and initiation of viewpoints on information technology governance. This research proposes the concept of adopting an integration of ISO 38500: 2015, an international standard for information technology governance, and guidelines recommended for the executive committee on an effective and acceptable implementation of information technology within the organization, and COBIT 2019framework via mapping the 6 key principles of information technology governance of ISO 38500: 2015 and the 5 domains and 4 0 processes of COBIT 2 0 1 9 core processes through a consideration of the processes relevant and suitable for the organization’s context as a case study for the guidelines on information technology governance and a determination on operational guidelines conformity with the organization’s objectives to achieve the desired benefits and goals.
{"title":"Guidelines for Information Technology Governance Based on Integrated ISO 38500 and COBIT 2019","authors":"Busarin Visitsilp, Nalinpat Bhumpenpein","doi":"10.1109/RI2C51727.2021.9559772","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559772","url":null,"abstract":"Information technology has become an integral part of the main task enhancing organizations success. The results are in line with the goals set by many organizations, both in the government and private sectors, for a better recognition of the significance on information technology work and initiation of viewpoints on information technology governance. This research proposes the concept of adopting an integration of ISO 38500: 2015, an international standard for information technology governance, and guidelines recommended for the executive committee on an effective and acceptable implementation of information technology within the organization, and COBIT 2019framework via mapping the 6 key principles of information technology governance of ISO 38500: 2015 and the 5 domains and 4 0 processes of COBIT 2 0 1 9 core processes through a consideration of the processes relevant and suitable for the organization’s context as a case study for the guidelines on information technology governance and a determination on operational guidelines conformity with the organization’s objectives to achieve the desired benefits and goals.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125887580","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559817
Sajeewan Pratsri, P. Nilsook, P. Wannapiroon
This research is the study and development of an augmented intelligence system for higher education students. Augmented intelligence is an intelligent system driven by feedback, self-learning, and self-assuring. An augmented intelligence system facilitates the practitioner's self-learning through questioning, active listening, and appropriate challenges. The learning environment has five main components: 1) the learner section, 2) the content section, 3) the teaching format section, 4) the learner analysis section, and 5) the user interface. Using the system appropriately will support learning management easily, conveniently, and quickly. Learners can manipulate their learning activities at any time and anywhere with access to an internet signal. The system will consist of four components: a coaching management system consisting of 1) Setting the topic 2) Questions, 3) Act & Check, and 4) Commitment. The learners can choose a learning style according to their needs. Moreover, there is a test in each learning unit to assess and determine the level of ability of the learners. The options to help learners understand the content of each lesson are also provided.
{"title":"Augmented Intelligence Coaching System","authors":"Sajeewan Pratsri, P. Nilsook, P. Wannapiroon","doi":"10.1109/RI2C51727.2021.9559817","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559817","url":null,"abstract":"This research is the study and development of an augmented intelligence system for higher education students. Augmented intelligence is an intelligent system driven by feedback, self-learning, and self-assuring. An augmented intelligence system facilitates the practitioner's self-learning through questioning, active listening, and appropriate challenges. The learning environment has five main components: 1) the learner section, 2) the content section, 3) the teaching format section, 4) the learner analysis section, and 5) the user interface. Using the system appropriately will support learning management easily, conveniently, and quickly. Learners can manipulate their learning activities at any time and anywhere with access to an internet signal. The system will consist of four components: a coaching management system consisting of 1) Setting the topic 2) Questions, 3) Act & Check, and 4) Commitment. The learners can choose a learning style according to their needs. Moreover, there is a test in each learning unit to assess and determine the level of ability of the learners. The options to help learners understand the content of each lesson are also provided.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126701977","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559820
W. Koodtalang, N. Thong-un
the comparison of the different types of time domain filter for dynamic weighting system is presented in this paper. The three popular filters consist of FIR filter, IIR filter and Kalman filter, which are implemented to evaluate its performances both accuracy and computation time. The conveyor belt type checkweigher is also established, comprising of an in-feed, a weighting and an out-feed conveyor. The load cell is mounted on weighting conveyor. Furthermore, two photoelectric sensors are installed at the front and the end point of weighting conveyor. As the result, the total time of object movement on weighting conveyor, which can be detected. The load cell signal is then passed to all filters at a time, utilizing to compensate the error caused by the movement of conveyor. The suitable measurement algorithm is designed to program on a commercial digital processor of Teensy4.0. Experimental results showed that the Kalman filter has ability to eliminate the noise with the smallest error of ±10g similar to IIR filter. However, IIR filter is slowest converged compared with all filters, but it shows the fast computation of 40µs. Meanwhile, the FIR filter is lowest performances both accuracy and computation time.
{"title":"The Comparison of Methods for Mass Measurement on the Continuing Movement Conveyor using Digital Processor","authors":"W. Koodtalang, N. Thong-un","doi":"10.1109/RI2C51727.2021.9559820","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559820","url":null,"abstract":"the comparison of the different types of time domain filter for dynamic weighting system is presented in this paper. The three popular filters consist of FIR filter, IIR filter and Kalman filter, which are implemented to evaluate its performances both accuracy and computation time. The conveyor belt type checkweigher is also established, comprising of an in-feed, a weighting and an out-feed conveyor. The load cell is mounted on weighting conveyor. Furthermore, two photoelectric sensors are installed at the front and the end point of weighting conveyor. As the result, the total time of object movement on weighting conveyor, which can be detected. The load cell signal is then passed to all filters at a time, utilizing to compensate the error caused by the movement of conveyor. The suitable measurement algorithm is designed to program on a commercial digital processor of Teensy4.0. Experimental results showed that the Kalman filter has ability to eliminate the noise with the smallest error of ±10g similar to IIR filter. However, IIR filter is slowest converged compared with all filters, but it shows the fast computation of 40µs. Meanwhile, the FIR filter is lowest performances both accuracy and computation time.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126787894","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559741
Yeganeh Ghandriz, Seyed Mohamadreza Ziaiean Noorbakhsh, R. Gavagsaz-Ghoachani, M. Phattanasak
Engineering system is always looking to promote educational routes for students. The promotion of the educational route is only possible with the changes in education infrastructure, the new methods of training should be chosen in a way that considers the opportunity of learning from the environment, understand the performance and the effectiveness of the method on the educational system. The proposed method is a combination of wide observation of nature along with educationally effective parameters. The purpose of this method in the training process is to provide the development of deep thinking, movement and curiosity, in addition to the apparent attractiveness. The general structure of this method can be applied in any field and discipline. The focus of the paper is centered on the influence of the wide observation of nature in renewable energy. Choosing a new educational method will depend on the students acceptance. To evaluate this method, two questionnaires were design and two groups of students with a bachelor of mechanical engineering and master of renewable energy were asked to respond to them. The results of surveys showed that the method was satisfying in the education of renewable energy. On the other hand, it helps with developing expertise and creativity in producing technical and specialized knowledge.
{"title":"Effect of wide observation of nature in renewable energy engineering education","authors":"Yeganeh Ghandriz, Seyed Mohamadreza Ziaiean Noorbakhsh, R. Gavagsaz-Ghoachani, M. Phattanasak","doi":"10.1109/RI2C51727.2021.9559741","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559741","url":null,"abstract":"Engineering system is always looking to promote educational routes for students. The promotion of the educational route is only possible with the changes in education infrastructure, the new methods of training should be chosen in a way that considers the opportunity of learning from the environment, understand the performance and the effectiveness of the method on the educational system. The proposed method is a combination of wide observation of nature along with educationally effective parameters. The purpose of this method in the training process is to provide the development of deep thinking, movement and curiosity, in addition to the apparent attractiveness. The general structure of this method can be applied in any field and discipline. The focus of the paper is centered on the influence of the wide observation of nature in renewable energy. Choosing a new educational method will depend on the students acceptance. To evaluate this method, two questionnaires were design and two groups of students with a bachelor of mechanical engineering and master of renewable energy were asked to respond to them. The results of surveys showed that the method was satisfying in the education of renewable energy. On the other hand, it helps with developing expertise and creativity in producing technical and specialized knowledge.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126234674","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559768
Kongphope Chaarmart, A. Vora–ud, T. Seetawan
Constant temperature controlling for the aging of Mao-wine is significant of that quality of wine. In this presentation, the aging tank of the Mao-wine was designed and the intelligent temperature controlling and monitoring systems were carried by using Arduino Mega and ds180b20 temperature sensors. The system can detect the set temperature in the specified range. The principle that was designed is uncomplicated, easy to understand. The result showed that Mao-wine has been matured in aging tank within the temperature controlled around 13 °C. This result was confirmed with the temperature distribution during wine aging as simulated by the finite element method. Note that, this temperature as controlled was suitable into wine aging and reduced time of wine aging to product as same the quality of wine. Therefore, the principle does not require linear control because it has designed the work according to the written algorithm, so it works respectfully can be used in the local enterprises regarding Mao-wine production.
{"title":"Temperature Controlling and Monitoring System of Mao-Wine Aging Tank for Local Enterprises","authors":"Kongphope Chaarmart, A. Vora–ud, T. Seetawan","doi":"10.1109/RI2C51727.2021.9559768","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559768","url":null,"abstract":"Constant temperature controlling for the aging of Mao-wine is significant of that quality of wine. In this presentation, the aging tank of the Mao-wine was designed and the intelligent temperature controlling and monitoring systems were carried by using Arduino Mega and ds180b20 temperature sensors. The system can detect the set temperature in the specified range. The principle that was designed is uncomplicated, easy to understand. The result showed that Mao-wine has been matured in aging tank within the temperature controlled around 13 °C. This result was confirmed with the temperature distribution during wine aging as simulated by the finite element method. Note that, this temperature as controlled was suitable into wine aging and reduced time of wine aging to product as same the quality of wine. Therefore, the principle does not require linear control because it has designed the work according to the written algorithm, so it works respectfully can be used in the local enterprises regarding Mao-wine production.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129208370","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559780
T. Leeudomwong, C. Bunluechokchai
This study focuses on the design of a semi-cylindrical capacitive sensor for intravenous (IV) drip detection. A main objective is to explore the capacitance of the semi-cylindrical capacitive sensor in response to drops of the IV fluid inside the drip chamber. The different sizes of semi-cylindrical capacitive sensors made of copper plates were constructed to be the IV drip detectors. They were put on the drip chamber of IV administration sets for detecting drops of the IV fluid appearing inside the drip chamber. Three sizes of the IV set were involved in the investigation: 15, 20, and 60 drops/ml. The sensor capacitances were measured, and the capacitance waveforms were observed. The relationships among the sensor sizes, the drip sizes, and the IV fluid levels inside the drip chamber were explored. The results showed that changes of the sensor capacitances are consistent with the basic principle of capacitor. The larger sensor size can produce the greater changes in capacitance of the semi-cylindrical capacitive sensor in response to the drops of IV fluid. The detected changes in sensor capacitance are approximately in the range of 0.02, 0.03, and 0.04 pF for the drip sizes 60, 20, and 15 drops/ml, respectively. Several factors have influence on the morphology of the capacitance waveform including the sensor size, the drip size, and the IV fluid level inside the drip chamber. In order to obtain the capacitance waveform appropriate for furthering processing, the design of the semi-cylindrical capacitive sensor must make a trade-off between the sensor size and the IV fluid level inside the drip chamber. The semi-cylindrical capacitive sensor would be an alternative effective device for the IV drip detection. The effective processing method is also required for identifying drops of the IV fluid from the detected capacitive waveform.
{"title":"A Study on the Design of A Semi-Cylindrical Capacitive Sensor for Intravenous Drip Detection","authors":"T. Leeudomwong, C. Bunluechokchai","doi":"10.1109/RI2C51727.2021.9559780","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559780","url":null,"abstract":"This study focuses on the design of a semi-cylindrical capacitive sensor for intravenous (IV) drip detection. A main objective is to explore the capacitance of the semi-cylindrical capacitive sensor in response to drops of the IV fluid inside the drip chamber. The different sizes of semi-cylindrical capacitive sensors made of copper plates were constructed to be the IV drip detectors. They were put on the drip chamber of IV administration sets for detecting drops of the IV fluid appearing inside the drip chamber. Three sizes of the IV set were involved in the investigation: 15, 20, and 60 drops/ml. The sensor capacitances were measured, and the capacitance waveforms were observed. The relationships among the sensor sizes, the drip sizes, and the IV fluid levels inside the drip chamber were explored. The results showed that changes of the sensor capacitances are consistent with the basic principle of capacitor. The larger sensor size can produce the greater changes in capacitance of the semi-cylindrical capacitive sensor in response to the drops of IV fluid. The detected changes in sensor capacitance are approximately in the range of 0.02, 0.03, and 0.04 pF for the drip sizes 60, 20, and 15 drops/ml, respectively. Several factors have influence on the morphology of the capacitance waveform including the sensor size, the drip size, and the IV fluid level inside the drip chamber. In order to obtain the capacitance waveform appropriate for furthering processing, the design of the semi-cylindrical capacitive sensor must make a trade-off between the sensor size and the IV fluid level inside the drip chamber. The semi-cylindrical capacitive sensor would be an alternative effective device for the IV drip detection. The effective processing method is also required for identifying drops of the IV fluid from the detected capacitive waveform.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130973001","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559789
B. Hong, Yanbing Qiu, Lei Sun, Guo Ping Wang, N. Chudpooti, J. Cunningham, I. Robertson, N. Somjit
We numerically and experimentally demonstrate a broadband single-mode hollow substrate integrated waveguide using one-dimensional photonic crystal as sidewalls in place of metallic via holes. By avoiding the vertical metallic walls, the waveguide can be easily fabricated as a photonic crystal structure on a single planar substrate sandwiched between two parallel metal plates. Such a hybrid flat waveguide can tightly confine the millimeter and terahertz waves in the low-loss air core. With the aid of the photonic crystal sidewalls, high-order competing modes in the waveguide are substantially suppressed based on the so-called modal-filtering effect, allowing the waveguide to be operated in a single-HE01-mode pattern over an octave bandwidth. Benefiting from the less use of metallic walls, the propagation loss of the proposed hybrid waveguide can be less than that of the classic hollow metallic rectangular waveguide at millimeter-wave and terahertz frequencies according to our numerical simulation. A proof-of-concept experimental demonstration operating between 20 to 45 GHz is presented verifying the properties and the advantages of the proposed waveguide. This works offers a promising candidate for an octave-bandwidth single-mode transmission line for millimeter-wave and THz multilayer system-in-package applications.
{"title":"Broadband Single-Mode Hollow Substrate Integrated Waveguide with Photonic Crystal Sidewalls for Multilayer System-in-Package Applications","authors":"B. Hong, Yanbing Qiu, Lei Sun, Guo Ping Wang, N. Chudpooti, J. Cunningham, I. Robertson, N. Somjit","doi":"10.1109/RI2C51727.2021.9559789","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559789","url":null,"abstract":"We numerically and experimentally demonstrate a broadband single-mode hollow substrate integrated waveguide using one-dimensional photonic crystal as sidewalls in place of metallic via holes. By avoiding the vertical metallic walls, the waveguide can be easily fabricated as a photonic crystal structure on a single planar substrate sandwiched between two parallel metal plates. Such a hybrid flat waveguide can tightly confine the millimeter and terahertz waves in the low-loss air core. With the aid of the photonic crystal sidewalls, high-order competing modes in the waveguide are substantially suppressed based on the so-called modal-filtering effect, allowing the waveguide to be operated in a single-HE01-mode pattern over an octave bandwidth. Benefiting from the less use of metallic walls, the propagation loss of the proposed hybrid waveguide can be less than that of the classic hollow metallic rectangular waveguide at millimeter-wave and terahertz frequencies according to our numerical simulation. A proof-of-concept experimental demonstration operating between 20 to 45 GHz is presented verifying the properties and the advantages of the proposed waveguide. This works offers a promising candidate for an octave-bandwidth single-mode transmission line for millimeter-wave and THz multilayer system-in-package applications.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132371149","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 : 2021-09-01DOI: 10.1109/RI2C51727.2021.9559794
Suthat Hongdumnuen, W. Chanwattanapong, Boonyarit Kumkhet
This paper presents a multiband antenna for WLAN and LTE MIMO systems based on a thin-film substrate. Which has ε_r= 3.2 and thickness of 0.3 mm. the proposed antennas consist of a two-ring patch monopole and a ground patch on the back, built using conductive material is copper with thickness of 0.1 mm. When integrated with the substrate material, makes the antenna thickness at 0.5 mm and its size is 55.4 mm x 110.4 mm (W×L). The measurement result of antenna shows the frequency response range between 1GHz-3GHz that is operation frequency of multiband. Which is cover WLAN band (2.4GHz), LTE 1800MHz band 3 (UL1710-1785MHz, DL1805-1880MHz), LTE 2100MHz band 1 (UL1920-1980MHz, DL2110-2170MHz), and LTE 2300MHz band 40 (2300- 2400GHz) and LTE 2600MHz band 38 (2570-2620MHz) at S11 less than -6 dB. In addition, the prototype antenna has average gain of 3.9 dBi and a correlation coefficient less than 0.5 over of the operation frequency. Therefore, the prototype antenna can be the measurement for other performance and applied to the LTE mobile network.
{"title":"Multiband Thin Film Antenna for WLAN and LTE MIMO Systems","authors":"Suthat Hongdumnuen, W. Chanwattanapong, Boonyarit Kumkhet","doi":"10.1109/RI2C51727.2021.9559794","DOIUrl":"https://doi.org/10.1109/RI2C51727.2021.9559794","url":null,"abstract":"This paper presents a multiband antenna for WLAN and LTE MIMO systems based on a thin-film substrate. Which has ε_r= 3.2 and thickness of 0.3 mm. the proposed antennas consist of a two-ring patch monopole and a ground patch on the back, built using conductive material is copper with thickness of 0.1 mm. When integrated with the substrate material, makes the antenna thickness at 0.5 mm and its size is 55.4 mm x 110.4 mm (W×L). The measurement result of antenna shows the frequency response range between 1GHz-3GHz that is operation frequency of multiband. Which is cover WLAN band (2.4GHz), LTE 1800MHz band 3 (UL1710-1785MHz, DL1805-1880MHz), LTE 2100MHz band 1 (UL1920-1980MHz, DL2110-2170MHz), and LTE 2300MHz band 40 (2300- 2400GHz) and LTE 2600MHz band 38 (2570-2620MHz) at S11 less than -6 dB. In addition, the prototype antenna has average gain of 3.9 dBi and a correlation coefficient less than 0.5 over of the operation frequency. Therefore, the prototype antenna can be the measurement for other performance and applied to the LTE mobile network.","PeriodicalId":422981,"journal":{"name":"2021 Research, Invention, and Innovation Congress: Innovation Electricals and Electronics (RI2C)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131675452","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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