Pub Date : 2014-10-02DOI: 10.1109/I4CT.2014.6914213
D. S. Awang Damit, A. I. Che Ani, A. Muhamad, M. H. Abbas, Fatimah Zaharah Ali
Literacy rates of visually impaired people in modern development country are being concerned nowadays. Early education for children with visual impairments is said to be one of the factors. Learning Braille is no longer a boring lesson to visually impaired children. This paper mediated a new pathway to interlink and translates inputs from keyboard into the most used Braille character automatically and enables normal visually people to have real time interaction with visually impaired person. This system also can be switches to Arabic Braille character to introduce them with Quran language. The output was able to represent each alphabet, number and Arabic letter of the Braille symbol by mechanically raising and lowering pins to create the tactile dots of Braille using solenoid. This method is a low cost, portable, and easy to operate. Experiments show that the method can effectively convert a keyboard as an input into Braille symbol.
{"title":"Dual braille code translator: Basic education tool for visually impaired children","authors":"D. S. Awang Damit, A. I. Che Ani, A. Muhamad, M. H. Abbas, Fatimah Zaharah Ali","doi":"10.1109/I4CT.2014.6914213","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914213","url":null,"abstract":"Literacy rates of visually impaired people in modern development country are being concerned nowadays. Early education for children with visual impairments is said to be one of the factors. Learning Braille is no longer a boring lesson to visually impaired children. This paper mediated a new pathway to interlink and translates inputs from keyboard into the most used Braille character automatically and enables normal visually people to have real time interaction with visually impaired person. This system also can be switches to Arabic Braille character to introduce them with Quran language. The output was able to represent each alphabet, number and Arabic letter of the Braille symbol by mechanically raising and lowering pins to create the tactile dots of Braille using solenoid. This method is a low cost, portable, and easy to operate. Experiments show that the method can effectively convert a keyboard as an input into Braille symbol.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123520239","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914141
Yasothaa Kalai Chelvam, N. Zamin
Failure to take a medication of the right dosage, at the right time causes minor healthcare problems to become worse. This is extremely problematic for the elderly patients who have difficulties in keeping track of their medicine. Therefore, M3DITRACK3R, an automated medicine dispenser which keep tracks of the dosage and duration between each consumption would be beneficial for senior citizens living independently. Elderly patients that have ageing issues, such as dementia or Alzheimer's disease have difficulties to remember their responsibilities. Poor eyesight as one of the contributors for medicine consumption errors such as misdosage since the elderly finds it troublesome to read the instruction on the medicine case, and identifying the right dosage of the medicine. Physical disabilities such as arthritis makes it difficult for elderly patients to open the cap of a vacuum tight medicine bottle. Hence, this paper presents a robotic application referred as M3DITRACK3R that is able to track the location of patient using the infrared sensor and dispense medicine at the right dosage and at the right time. The hardware and software design are outlined based on critical reviews made over the existing systems. Performance test and user acceptance test have been conducted and satisfactory results are achieved.
{"title":"M3DITRACK3R: A design of an automated patient tracking and medicine dispensing mobile robot for senior citizens","authors":"Yasothaa Kalai Chelvam, N. Zamin","doi":"10.1109/I4CT.2014.6914141","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914141","url":null,"abstract":"Failure to take a medication of the right dosage, at the right time causes minor healthcare problems to become worse. This is extremely problematic for the elderly patients who have difficulties in keeping track of their medicine. Therefore, M3DITRACK3R, an automated medicine dispenser which keep tracks of the dosage and duration between each consumption would be beneficial for senior citizens living independently. Elderly patients that have ageing issues, such as dementia or Alzheimer's disease have difficulties to remember their responsibilities. Poor eyesight as one of the contributors for medicine consumption errors such as misdosage since the elderly finds it troublesome to read the instruction on the medicine case, and identifying the right dosage of the medicine. Physical disabilities such as arthritis makes it difficult for elderly patients to open the cap of a vacuum tight medicine bottle. Hence, this paper presents a robotic application referred as M3DITRACK3R that is able to track the location of patient using the infrared sensor and dispense medicine at the right dosage and at the right time. The hardware and software design are outlined based on critical reviews made over the existing systems. Performance test and user acceptance test have been conducted and satisfactory results are achieved.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"227 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123562750","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914201
Sum Keng Chung, O. C. Yee, M. Singh, Rohail Hassan
E-learning enables acquisition of knowledge and information through technologies such as computers, smartphones, tablets and wide area networks. The existence of e-learning does contribute in the field of education field such as in the university because its improve the education quality and distributing and sharing of teaching material efficiently. However, due to the open-network in which e-learning tools resides, it is prone to various security attacks. In this paper, we will classify e-learning technology security based attacks into classification via active and passive attacks. Next, two major attacks which is the SQL injection attack and session hijacking is explored in-depth. Case study for each attack to investigate the vulnerabilities in e-learning system and mechanism of solutions to tackle this attack is also presented. An evaluation of the proposed solutions against the X.800 security architecture is done at the end of the study.
{"title":"SQL injections attack and session hijacking on e-learning systems","authors":"Sum Keng Chung, O. C. Yee, M. Singh, Rohail Hassan","doi":"10.1109/I4CT.2014.6914201","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914201","url":null,"abstract":"E-learning enables acquisition of knowledge and information through technologies such as computers, smartphones, tablets and wide area networks. The existence of e-learning does contribute in the field of education field such as in the university because its improve the education quality and distributing and sharing of teaching material efficiently. However, due to the open-network in which e-learning tools resides, it is prone to various security attacks. In this paper, we will classify e-learning technology security based attacks into classification via active and passive attacks. Next, two major attacks which is the SQL injection attack and session hijacking is explored in-depth. Case study for each attack to investigate the vulnerabilities in e-learning system and mechanism of solutions to tackle this attack is also presented. An evaluation of the proposed solutions against the X.800 security architecture is done at the end of the study.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122788120","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914138
Zeyid T. Ibraheem, S. Yaakob, R. A. Kadhim, Md. Mijanur Rahman, M. S. Razalli, Kawakib K. Ahmed
Orthogonal frequency division multiplexing (OFDM) is a promising modulation technique for transmitting large amounts of digital data through radio waves. One major drawback in OFDM communication is peak-to-average power ratio (PAPR). Mainly because of the nonlinearity of the high power amplifier, these results in high out-of-band radiation, inter-carrier interference, and bit error rate performance degradation. Partial transmit sequences (PTS), an attractive technique of PAPR reduction, provides significant PAPR reduction performance for (OFDM) signals. It essentially involves partitioning the OFDM data frame into disjoint sub-blocks. Adjacent partitioning (AP) scheme can be regarded as the best of the existing partitioning schemes when PAPR reduction performance and cost are considered together. In this paper, we study the impact of the size of PTS partitions on the performance through varying the size of the disjoint sub-blocks partition and comparing the PAPR reduction performance of three well known sub-block partitioning schemes namely Adjacent Partitioning (AP), Interleaved Partitioning (IP) and Pseudorandom Partitioning (PRP). Simulation results showed that performance of these PTS schemes largely depends on the chosen size of the partitions.
{"title":"Performance of PTS techniques with varied partition size in PAPR reduction of OFDM system","authors":"Zeyid T. Ibraheem, S. Yaakob, R. A. Kadhim, Md. Mijanur Rahman, M. S. Razalli, Kawakib K. Ahmed","doi":"10.1109/I4CT.2014.6914138","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914138","url":null,"abstract":"Orthogonal frequency division multiplexing (OFDM) is a promising modulation technique for transmitting large amounts of digital data through radio waves. One major drawback in OFDM communication is peak-to-average power ratio (PAPR). Mainly because of the nonlinearity of the high power amplifier, these results in high out-of-band radiation, inter-carrier interference, and bit error rate performance degradation. Partial transmit sequences (PTS), an attractive technique of PAPR reduction, provides significant PAPR reduction performance for (OFDM) signals. It essentially involves partitioning the OFDM data frame into disjoint sub-blocks. Adjacent partitioning (AP) scheme can be regarded as the best of the existing partitioning schemes when PAPR reduction performance and cost are considered together. In this paper, we study the impact of the size of PTS partitions on the performance through varying the size of the disjoint sub-blocks partition and comparing the PAPR reduction performance of three well known sub-block partitioning schemes namely Adjacent Partitioning (AP), Interleaved Partitioning (IP) and Pseudorandom Partitioning (PRP). Simulation results showed that performance of these PTS schemes largely depends on the chosen size of the partitions.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122440234","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914200
Nurulhuda Zainuddin, A. Selamat
Sentiment analysis is treated as a classification task as it classifies the orientation of a text into either positive or negative. This paper describes experimental results that applied Support Vector Machine (SVM) on benchmark datasets to train a sentiment classifier. N-grams and different weighting scheme were used to extract the most classical features. It also explores Chi-Square weight features to select informative features for the classification. Experimental analysis reveals that by using Chi-Square feature selection may provide significant improvement on classification accuracy.
{"title":"Sentiment analysis using Support Vector Machine","authors":"Nurulhuda Zainuddin, A. Selamat","doi":"10.1109/I4CT.2014.6914200","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914200","url":null,"abstract":"Sentiment analysis is treated as a classification task as it classifies the orientation of a text into either positive or negative. This paper describes experimental results that applied Support Vector Machine (SVM) on benchmark datasets to train a sentiment classifier. N-grams and different weighting scheme were used to extract the most classical features. It also explores Chi-Square weight features to select informative features for the classification. Experimental analysis reveals that by using Chi-Square feature selection may provide significant improvement on classification accuracy.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128647587","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914208
K. Jiju, P. Ramesh, P. Brijesh, B. Sreekumari
This paper describes the development of an online monitoring and control system for distributed Renewable Energy Sources (RES) based on Android platform. This method utilizes the Bluetooth interface of Android Tablet/ Mobile phone as a communication link for data exchange with digital hardware of Power Conditioning Unit (PCU). The Low Cost Android tablet can replace the graphical LCD displays and Internet modem of RES Power Conditioning Unit (PCU) with enhanced graphical visualization and touch screen interface.
本文介绍了一种基于Android平台的分布式可再生能源(RES)在线监控系统的开发。该方法利用Android平板/手机的蓝牙接口作为通信链路，与PCU (Power Conditioning Unit)的数字硬件进行数据交换。低成本的Android平板电脑可以用增强的图形可视化和触摸屏界面取代RES Power Conditioning Unit (PCU)的图形LCD显示器和Internet调制解调器。
{"title":"Development of Android based on-line monitoring and control system for Renewable Energy Sources","authors":"K. Jiju, P. Ramesh, P. Brijesh, B. Sreekumari","doi":"10.1109/I4CT.2014.6914208","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914208","url":null,"abstract":"This paper describes the development of an online monitoring and control system for distributed Renewable Energy Sources (RES) based on Android platform. This method utilizes the Bluetooth interface of Android Tablet/ Mobile phone as a communication link for data exchange with digital hardware of Power Conditioning Unit (PCU). The Low Cost Android tablet can replace the graphical LCD displays and Internet modem of RES Power Conditioning Unit (PCU) with enhanced graphical visualization and touch screen interface.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128648010","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914212
Umair Sarwar, M. Muhammad, Z. A. A. Karim
Accurate machine performance prediction is crucial to an effective maintenance strategy for improved reliability and to reduce total maintenance cost. In this study, a time series neural network based approach is introduced to achieve more accurate and reliable performance prediction of machine using condition monitoring data source. The proposed time series model utilizes the various measured condition monitoring data at the current and previous inspection marks as the inputs, and the machine output performance as the targets for the model. To validate the model, it considers a two-shaft industrial gas turbine as a case study. The collected condition monitoring data are used to train and validate the proposed model. Results showed that the proposed time series method could predict the performance of the gas turbine power output with more accuracy and better results.
{"title":"Time series method for machine performance prediction using condition monitoring data","authors":"Umair Sarwar, M. Muhammad, Z. A. A. Karim","doi":"10.1109/I4CT.2014.6914212","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914212","url":null,"abstract":"Accurate machine performance prediction is crucial to an effective maintenance strategy for improved reliability and to reduce total maintenance cost. In this study, a time series neural network based approach is introduced to achieve more accurate and reliable performance prediction of machine using condition monitoring data source. The proposed time series model utilizes the various measured condition monitoring data at the current and previous inspection marks as the inputs, and the machine output performance as the targets for the model. To validate the model, it considers a two-shaft industrial gas turbine as a case study. The collected condition monitoring data are used to train and validate the proposed model. Results showed that the proposed time series method could predict the performance of the gas turbine power output with more accuracy and better results.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114739969","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914159
B. Diop, Dame Diongue, Ousmane Thiaré
Recent improvements in affordable and efficient integrated electronic devices have enabled a wide range of applications in the estate of wireless sensor networks. An important issue addressed in wireless sensor networks is the coverage problem. This latter is centered on a fundamental question: how well do the sensors observe the physical space? A major challenge in coverage problem is how to maximize the lifetime of the network while ensuring coverage of a set of targets. To achieve this, the usual process, consists on scheduling sensors activity, which enables energy dissipation control. Scheduling process goes by activating sensors by round such that in each round, only one subset of sensors that satisfies the coverage requirement is activated, while all other sensors are in a low energy mode and will be activated later. In this paper, we propose a weight-based greedy algorithm (WGA) which organizes sensors in multiple subsets. Our objective is to partition an initial set of sensors into a maximum possible number of sensors set covers (SSCs), which can completely monitor targets in a region of interest. Performance evaluation of WGA have proven its efficiency over some well-known algorithms proposed in the literature, in term of computed set covers.
{"title":"A weight-based greedy algorithm for target coverage problem in wireless sensor networks","authors":"B. Diop, Dame Diongue, Ousmane Thiaré","doi":"10.1109/I4CT.2014.6914159","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914159","url":null,"abstract":"Recent improvements in affordable and efficient integrated electronic devices have enabled a wide range of applications in the estate of wireless sensor networks. An important issue addressed in wireless sensor networks is the coverage problem. This latter is centered on a fundamental question: how well do the sensors observe the physical space? A major challenge in coverage problem is how to maximize the lifetime of the network while ensuring coverage of a set of targets. To achieve this, the usual process, consists on scheduling sensors activity, which enables energy dissipation control. Scheduling process goes by activating sensors by round such that in each round, only one subset of sensors that satisfies the coverage requirement is activated, while all other sensors are in a low energy mode and will be activated later. In this paper, we propose a weight-based greedy algorithm (WGA) which organizes sensors in multiple subsets. Our objective is to partition an initial set of sensors into a maximum possible number of sensors set covers (SSCs), which can completely monitor targets in a region of interest. Performance evaluation of WGA have proven its efficiency over some well-known algorithms proposed in the literature, in term of computed set covers.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126443571","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914147
M. F. Kamaruzaman, I. H. Zainol
This research investigated the essential medium for mobile advertising towards the millennial. Mobile advertising has become a significant instrument for the marketers to get in touch with the end users. The usage of mobile phones to the millennial are experience a revolution where it is not just an instrument for conversation, education, social networking but entertainment as well, which bestows the emergence of mobile advertising. However, the reactions of millennial are uncertain whether or not the commercial sent to them is effective. Hence, a preliminary questionnaire, interview and case study has been carried out in order to validate the acceptance towards mobile advertising and the culture that influences the response. The culture of influence may involve informativeness, social influence and cost. Result indicates that majority of the respondents have an optimistic attitude towards mobile advertising. Many agree that interesting designated advertisement will attract them to pay more attention to the advertisement.
{"title":"The role of mobile advertising technology towards millennial social behavior","authors":"M. F. Kamaruzaman, I. H. Zainol","doi":"10.1109/I4CT.2014.6914147","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914147","url":null,"abstract":"This research investigated the essential medium for mobile advertising towards the millennial. Mobile advertising has become a significant instrument for the marketers to get in touch with the end users. The usage of mobile phones to the millennial are experience a revolution where it is not just an instrument for conversation, education, social networking but entertainment as well, which bestows the emergence of mobile advertising. However, the reactions of millennial are uncertain whether or not the commercial sent to them is effective. Hence, a preliminary questionnaire, interview and case study has been carried out in order to validate the acceptance towards mobile advertising and the culture that influences the response. The culture of influence may involve informativeness, social influence and cost. Result indicates that majority of the respondents have an optimistic attitude towards mobile advertising. Many agree that interesting designated advertisement will attract them to pay more attention to the advertisement.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115904827","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 : 2014-10-02DOI: 10.1109/I4CT.2014.6914193
Hatam Zaghiran Bavi, S. Paramasivam, L. T. Fat
Current trend of greater mobility of wireless communication devices has stimulated designs of portability to be at the forefront of manufacturer's interest. In fact, micro strip patch antenna has gain greater popularity because of their many advantages such as, light weight, low fabrication cost, polarization diversity and ease of integration with microwave integrated circuits. This paper covers the Quad ring patch antenna design for UHF (Ultra high frequency) and VHF (very high frequency) application. The Quad ring patch antenna will have a gain of 10 dB and above. Four ring patch antennas are placed in the array form and are joined by a Wilkinson power divider at one point in order to equally divide the power among the circular ring and make the power lossless. A Balun was incorporated at the feed point of the antenna so as to match the impedance of the coaxial cable with the impedance of the Quad ring patch antenna in order to ensure maximum power transfer. This uniquely designed array structure was tested on television application and the result shows that such portable array of reduced size was well receptive towards such frequency range. This portable antenna which was kept at close proximity with the television was able to produce relatively good quality signal over three channels under a static position. In fact, these results can be very useful while designing micro-strip patch antenna of different structure and array.
{"title":"Quad ring patch antenna design for VHF/UHF application","authors":"Hatam Zaghiran Bavi, S. Paramasivam, L. T. Fat","doi":"10.1109/I4CT.2014.6914193","DOIUrl":"https://doi.org/10.1109/I4CT.2014.6914193","url":null,"abstract":"Current trend of greater mobility of wireless communication devices has stimulated designs of portability to be at the forefront of manufacturer's interest. In fact, micro strip patch antenna has gain greater popularity because of their many advantages such as, light weight, low fabrication cost, polarization diversity and ease of integration with microwave integrated circuits. This paper covers the Quad ring patch antenna design for UHF (Ultra high frequency) and VHF (very high frequency) application. The Quad ring patch antenna will have a gain of 10 dB and above. Four ring patch antennas are placed in the array form and are joined by a Wilkinson power divider at one point in order to equally divide the power among the circular ring and make the power lossless. A Balun was incorporated at the feed point of the antenna so as to match the impedance of the coaxial cable with the impedance of the Quad ring patch antenna in order to ensure maximum power transfer. This uniquely designed array structure was tested on television application and the result shows that such portable array of reduced size was well receptive towards such frequency range. This portable antenna which was kept at close proximity with the television was able to produce relatively good quality signal over three channels under a static position. In fact, these results can be very useful while designing micro-strip patch antenna of different structure and array.","PeriodicalId":356190,"journal":{"name":"2014 International Conference on Computer, Communications, and Control Technology (I4CT)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123181312","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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