Pub Date : 2014-12-12DOI: 10.1109/MMS.2014.7089005
S. El-Samad, D. Obeid, S. Sadek, G. Zaharia, G. El Zein
This paper presents a wireless cardiopulmonary activity measurement system. This system generates a continuous wave toward a person's chest set at a distance of 1 m, then reflected to the system. Using a vector network analyzer, the phase of S21 is computed. The phase variation of S21 contains information about cardiopulmonary activity. Several processing techniques are used to separate heartbeat signal from cardiorespiratory signal either in frequency or in temporal domain. The measurements were performed simultaneously with a PC-based electrocardiogram to validate the heartbeat rate detection techniques. In conclusion, processing techniques used in this paper give accurate results.
{"title":"Contact-less measurement system for cardiopulmonary activity","authors":"S. El-Samad, D. Obeid, S. Sadek, G. Zaharia, G. El Zein","doi":"10.1109/MMS.2014.7089005","DOIUrl":"https://doi.org/10.1109/MMS.2014.7089005","url":null,"abstract":"This paper presents a wireless cardiopulmonary activity measurement system. This system generates a continuous wave toward a person's chest set at a distance of 1 m, then reflected to the system. Using a vector network analyzer, the phase of S21 is computed. The phase variation of S21 contains information about cardiopulmonary activity. Several processing techniques are used to separate heartbeat signal from cardiorespiratory signal either in frequency or in temporal domain. The measurements were performed simultaneously with a PC-based electrocardiogram to validate the heartbeat rate detection techniques. In conclusion, processing techniques used in this paper give accurate results.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127190520","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 : 2014-12-12DOI: 10.1109/MMS.2014.7088791
H. Raggad, M. Latrach, A. Gharsallah
This paper presents a broadband conical bowtie dielectric resonator antenna operating from 4.8 to 6.3 GHz. The DRA is simply excited by a single slot fed by a microstrip feed line. It is found that the bandwidth of the proposed antenna can be as high as 29%. The antenna gain varies between 5.28 and 7.1dBi across the antenna bandwidth (4.8-6.3 GHz). The antennas have broadside radiation patterns in all cases across the matching band. The envelope size of this antenna is 65 × 50 × 9.5 mm3. The reflection coefficient, the radiation pattern and the antenna gain of the proposed configuration are studied. A reasonable agreement between the measured and simulated results is observed.
{"title":"Compact bowtie dielectric resonator antenna for broadband applications","authors":"H. Raggad, M. Latrach, A. Gharsallah","doi":"10.1109/MMS.2014.7088791","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088791","url":null,"abstract":"This paper presents a broadband conical bowtie dielectric resonator antenna operating from 4.8 to 6.3 GHz. The DRA is simply excited by a single slot fed by a microstrip feed line. It is found that the bandwidth of the proposed antenna can be as high as 29%. The antenna gain varies between 5.28 and 7.1dBi across the antenna bandwidth (4.8-6.3 GHz). The antennas have broadside radiation patterns in all cases across the matching band. The envelope size of this antenna is 65 × 50 × 9.5 mm3. The reflection coefficient, the radiation pattern and the antenna gain of the proposed configuration are studied. A reasonable agreement between the measured and simulated results is observed.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122882940","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 : 2014-12-12DOI: 10.1109/MMS.2014.7088993
S. Dakhli, J. Floch, K. Mahdjoubi, H. Rmili, F. Choubani
In this work, a reconfigurable radiation pattern metamaterial-inspired antenna is proposed. The structure consists of a simple split resonator (SRR) loaded with four open circuits and introduced into the near field region of a monopole antenna. Four configurations are studied by considering the states of the open circuits. Simulated results show that the structure can change its radiating behavior by controlling the switching states. The simulated results of return loss and radiation patterns are presented and discussed.
{"title":"Design of a reconfigurable radiation pattern metamaterial-inspired monopole antenna","authors":"S. Dakhli, J. Floch, K. Mahdjoubi, H. Rmili, F. Choubani","doi":"10.1109/MMS.2014.7088993","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088993","url":null,"abstract":"In this work, a reconfigurable radiation pattern metamaterial-inspired antenna is proposed. The structure consists of a simple split resonator (SRR) loaded with four open circuits and introduced into the near field region of a monopole antenna. Four configurations are studied by considering the states of the open circuits. Simulated results show that the structure can change its radiating behavior by controlling the switching states. The simulated results of return loss and radiation patterns are presented and discussed.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116338703","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 : 2014-12-12DOI: 10.1109/MMS.2014.7089004
D. Oueslati, H. Rmili, C. Dumouchel, J. Floch, L. Laadhar
Printed antenna based on 2D-images of a fractal liquid jet has been designed and analyzed numerically. In this work, the effect of the structure's size on the antenna behavior was presented. The return loss, radiation patterns and surface current densities were simulated over the frequency band 1-20 GHz for 3 different sizes of the structure. It is found the size of the fractal antenna affects the antenna radiation properties.
{"title":"Numerical analysis of the size effect on a printed 2D-irregular fractal-jet antenna","authors":"D. Oueslati, H. Rmili, C. Dumouchel, J. Floch, L. Laadhar","doi":"10.1109/MMS.2014.7089004","DOIUrl":"https://doi.org/10.1109/MMS.2014.7089004","url":null,"abstract":"Printed antenna based on 2D-images of a fractal liquid jet has been designed and analyzed numerically. In this work, the effect of the structure's size on the antenna behavior was presented. The return loss, radiation patterns and surface current densities were simulated over the frequency band 1-20 GHz for 3 different sizes of the structure. It is found the size of the fractal antenna affects the antenna radiation properties.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121372923","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 : 2014-12-01DOI: 10.1109/MMS.2014.7089007
Kerim Ture, Enver G. Kilinc, C. Dehollain
This paper presents the advantages and drawbacks of designing different power amplifier types. The study also compares the drain efficiencies of the current-source and switch-type power amplifiers. The appropriate power amplifier needs to be chosen for low-power short range data communication. A fully integrated low-power class-E power amplifier at 869 MHz for short range communication is designed. The power amplifier is integrated using a 0.18 μm CMOS technology. Post-layout simulation results show the effectiveness of the power amplifier. The power amplifier consumes only 487.2 μW at 0.2 V supply voltage. The drain efficiency of the power amplifier is 55% at -5.8 dBm output power for 50 Ω load.
{"title":"A fully integrated low-power class-E power amplifier for short range communication","authors":"Kerim Ture, Enver G. Kilinc, C. Dehollain","doi":"10.1109/MMS.2014.7089007","DOIUrl":"https://doi.org/10.1109/MMS.2014.7089007","url":null,"abstract":"This paper presents the advantages and drawbacks of designing different power amplifier types. The study also compares the drain efficiencies of the current-source and switch-type power amplifiers. The appropriate power amplifier needs to be chosen for low-power short range data communication. A fully integrated low-power class-E power amplifier at 869 MHz for short range communication is designed. The power amplifier is integrated using a 0.18 μm CMOS technology. Post-layout simulation results show the effectiveness of the power amplifier. The power amplifier consumes only 487.2 μW at 0.2 V supply voltage. The drain efficiency of the power amplifier is 55% at -5.8 dBm output power for 50 Ω load.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115394679","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 : 2014-12-01DOI: 10.1109/MMS.2014.7088786
F. Mazeh, H. Ayad, A. Khalil, A. Rahal, M. Fadllallah, J. Jomaah, F. Ndagijimana
An arbitrary tri-band transmission line (TL) using double-Lorentz (DL) metamaterial medium is presented. A DL TL has sufficient degrees of freedom to realize tri-band microwave devices. We demonstrate that the three operating frequencies can be obtained by tuning the phase slope of the line section. Then, the design equations are extracted for the first time and validated by Surface Mount Technology implementation (SMT) to have a first cut design before the transition to a real design at 900 MHz, 1800 MHz, and 2100 MHz. Moreover, real TL effects are added and compensated by non-linear programming: "optimization".
{"title":"Design and optimization of a double-Lorentz transmission line for tri-band applications","authors":"F. Mazeh, H. Ayad, A. Khalil, A. Rahal, M. Fadllallah, J. Jomaah, F. Ndagijimana","doi":"10.1109/MMS.2014.7088786","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088786","url":null,"abstract":"An arbitrary tri-band transmission line (TL) using double-Lorentz (DL) metamaterial medium is presented. A DL TL has sufficient degrees of freedom to realize tri-band microwave devices. We demonstrate that the three operating frequencies can be obtained by tuning the phase slope of the line section. Then, the design equations are extracted for the first time and validated by Surface Mount Technology implementation (SMT) to have a first cut design before the transition to a real design at 900 MHz, 1800 MHz, and 2100 MHz. Moreover, real TL effects are added and compensated by non-linear programming: \"optimization\".","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116940583","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 : 2014-12-01DOI: 10.1109/MMS.2014.7088952
R. Kopru, S. Kılınç, A. Aksen, B. Yarman
Design of a UWB (Ultra Wideband) microstrip patch antenna to operate in the first channel of the UWB standard and a bandpass (BP) UE (Unit Element) microstrip filter (BPUEF) for this antenna are studied and presented with promising experimental results. A typical UE BP filter is a lossless 2-port network which is formed with certain number of cascade connected commensurate transmission lines. Based on the simplified real frequency technique (SRFT) in Richards domain, driving point Darlington impedance function of the BPUEF is obtained via optimization such that optimum power transfer would be possible between a PA (power amplifier) and the antenna. Using the UE synthesis, characteristic impedance values of each UE is extracted from the input impedance function. Theoretical design (Matlab), simulation (ADS, Agilent Inc.) and the measurements are shown to be in a high degree of agreement.
{"title":"Unit element bandpass filter design via simplified real frequency technique for UWB microstrip patch antenna","authors":"R. Kopru, S. Kılınç, A. Aksen, B. Yarman","doi":"10.1109/MMS.2014.7088952","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088952","url":null,"abstract":"Design of a UWB (Ultra Wideband) microstrip patch antenna to operate in the first channel of the UWB standard and a bandpass (BP) UE (Unit Element) microstrip filter (BPUEF) for this antenna are studied and presented with promising experimental results. A typical UE BP filter is a lossless 2-port network which is formed with certain number of cascade connected commensurate transmission lines. Based on the simplified real frequency technique (SRFT) in Richards domain, driving point Darlington impedance function of the BPUEF is obtained via optimization such that optimum power transfer would be possible between a PA (power amplifier) and the antenna. Using the UE synthesis, characteristic impedance values of each UE is extracted from the input impedance function. Theoretical design (Matlab), simulation (ADS, Agilent Inc.) and the measurements are shown to be in a high degree of agreement.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117174264","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 : 2014-12-01DOI: 10.1109/MMS.2014.7088790
Amine Hedfi, Mohamed Hayouni
Since the approval and allocation of the frequency range of 3.1-10.6 GHz, ultrawideband (UWB) technology has become one of the most promising technologies for the high-data-rate wireless communications. Compact UWB antenna, as an essential part of the UWB system, has become the main subject of recent researches. Several techniques have been reported in the literature showing desirable characteristics. However, with an increase in the number of wireless communication devices, there is a problem of a possible electromagnetic interference, as over the allocated spectrum of the UWB system, some narrow band of other communication standards exist. In this paper, we summarize the main recent applied techniques used to suppress electromagnetic interferences with such narrow bands. Three notched bands relative to WiMAX, WLAN and for downlink X-band satellite communication systems are achieved by incorporating a stick of semicircular half-wavelength and open-ended quarter-wavelength straight slots etched in the radiating patch. Dual notched-bands can also achieved by incorporating two Γ-shaped slits and Ω-shaped parasitic structure in the radiating patch. Another technique, applied to suppress interference, consisted of two short-circuited folded Stepped Impedance Resonators (SIRs) embedded in the ground plane. The last presented band-notching technique consists of incorporating slots in both radiating patch and ground plane. The studies and discuss are followed by experimental and simulated reported results such as the coefficient reflexion over the allocated spectrum of the UWB system, the impedance bandwidth, radiation patterns and the antenna dimensions.
{"title":"Band-notched UWB antennas: Recent trends and development","authors":"Amine Hedfi, Mohamed Hayouni","doi":"10.1109/MMS.2014.7088790","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088790","url":null,"abstract":"Since the approval and allocation of the frequency range of 3.1-10.6 GHz, ultrawideband (UWB) technology has become one of the most promising technologies for the high-data-rate wireless communications. Compact UWB antenna, as an essential part of the UWB system, has become the main subject of recent researches. Several techniques have been reported in the literature showing desirable characteristics. However, with an increase in the number of wireless communication devices, there is a problem of a possible electromagnetic interference, as over the allocated spectrum of the UWB system, some narrow band of other communication standards exist. In this paper, we summarize the main recent applied techniques used to suppress electromagnetic interferences with such narrow bands. Three notched bands relative to WiMAX, WLAN and for downlink X-band satellite communication systems are achieved by incorporating a stick of semicircular half-wavelength and open-ended quarter-wavelength straight slots etched in the radiating patch. Dual notched-bands can also achieved by incorporating two Γ-shaped slits and Ω-shaped parasitic structure in the radiating patch. Another technique, applied to suppress interference, consisted of two short-circuited folded Stepped Impedance Resonators (SIRs) embedded in the ground plane. The last presented band-notching technique consists of incorporating slots in both radiating patch and ground plane. The studies and discuss are followed by experimental and simulated reported results such as the coefficient reflexion over the allocated spectrum of the UWB system, the impedance bandwidth, radiation patterns and the antenna dimensions.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126195341","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 : 2014-12-01DOI: 10.1109/MMS.2014.7088966
Hiba Abdel Ali, R. Bedira, H. Trabelsi, A. Gharsallah, S. Moscato, R. Moro, M. Pasian, M. Bozzi, L. Perregrini
This paper presents a novel technique for the implementation of substrate integrated waveguide components based on paper substrate. The aim of the work is to develop a new class of microwave devices where the main advantages are the eco-compatibility and the low cost. These aspects match the requirements of microwave components for the new generation wireless sensor networks. The key points of this work are the manufacturing process based on physical etching of a metal layer and the implementation of a substrate integrated waveguide components on paper. In order to verify the reliability of the manufacturing process, two preliminary designs are proposed: a two poles band-pass filter and a cavity backed antenna both operating at 4 GHz.
{"title":"Innovative technique for substrate integrated waveguide implementation on paper substrate","authors":"Hiba Abdel Ali, R. Bedira, H. Trabelsi, A. Gharsallah, S. Moscato, R. Moro, M. Pasian, M. Bozzi, L. Perregrini","doi":"10.1109/MMS.2014.7088966","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088966","url":null,"abstract":"This paper presents a novel technique for the implementation of substrate integrated waveguide components based on paper substrate. The aim of the work is to develop a new class of microwave devices where the main advantages are the eco-compatibility and the low cost. These aspects match the requirements of microwave components for the new generation wireless sensor networks. The key points of this work are the manufacturing process based on physical etching of a metal layer and the implementation of a substrate integrated waveguide components on paper. In order to verify the reliability of the manufacturing process, two preliminary designs are proposed: a two poles band-pass filter and a cavity backed antenna both operating at 4 GHz.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116726059","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 : 2014-12-01DOI: 10.1109/MMS.2014.7088949
Omar Lehmer, Farid Ben Abdelouahab, M. Essaaidi
In this paper a new reconfigurable antenna is presented. The idea of this work is to integrate two switches in well-defined positions to obtain reconfigurability in frequency in the operating band of the standard DVB-H (digital video broadcasting-handheld). The antenna is printed on a substrate size 92 × 41 ×1.56 mm3 with a relative permittivity of 4.4mm. The gain of the antenna for the three state ON-ON, OFF-ON and OFF-OFF is respectively 1.75, 2.03 and 2.2 dB, respectively.
{"title":"A compact frequency reconfigurable antenna for handheld devices standard","authors":"Omar Lehmer, Farid Ben Abdelouahab, M. Essaaidi","doi":"10.1109/MMS.2014.7088949","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088949","url":null,"abstract":"In this paper a new reconfigurable antenna is presented. The idea of this work is to integrate two switches in well-defined positions to obtain reconfigurability in frequency in the operating band of the standard DVB-H (digital video broadcasting-handheld). The antenna is printed on a substrate size 92 × 41 ×1.56 mm3 with a relative permittivity of 4.4mm. The gain of the antenna for the three state ON-ON, OFF-ON and OFF-OFF is respectively 1.75, 2.03 and 2.2 dB, respectively.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129474034","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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