Pub Date : 2014-12-01DOI: 10.1109/MMS.2014.7088988
H. Shaman, S. Almorqi, O. Haraz, S. Alshebeili, A. Sebak
Design of millimeter-wave microstrip diplexer using elliptical open-loop ring resonators (OLRRs) for the next fifth generation (5G) wireless applications, is presented in this paper. The proposed design consists of two 14-GHz and 28-GHz band pass filters (BPFs). Each BPF consists of elliptical OLRRs that couple two microstrip lines. The geometrical parameters of both BPFs can easily adjust the passband and stopband frequencies to the desired frequencies. The proposed elliptical-shaped OLRRs show good broadband characteristics. The longer OLRR is responsible for achieving passband at the lower resonant frequency of 14-GHz while the shorter OLRR is used to generate a 28-GHz resonant frequency. The proposed diplexer has good return losses and insertion losses at the two resonant frequencies of 14-GHz and 28-GHz.
{"title":"Millimeter-wave microstrip diplexer using elliptical open-loop ring resonators for next generation 5G wireless applications","authors":"H. Shaman, S. Almorqi, O. Haraz, S. Alshebeili, A. Sebak","doi":"10.1109/MMS.2014.7088988","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088988","url":null,"abstract":"Design of millimeter-wave microstrip diplexer using elliptical open-loop ring resonators (OLRRs) for the next fifth generation (5G) wireless applications, is presented in this paper. The proposed design consists of two 14-GHz and 28-GHz band pass filters (BPFs). Each BPF consists of elliptical OLRRs that couple two microstrip lines. The geometrical parameters of both BPFs can easily adjust the passband and stopband frequencies to the desired frequencies. The proposed elliptical-shaped OLRRs show good broadband characteristics. The longer OLRR is responsible for achieving passband at the lower resonant frequency of 14-GHz while the shorter OLRR is used to generate a 28-GHz resonant frequency. The proposed diplexer has good return losses and insertion losses at the two resonant frequencies of 14-GHz and 28-GHz.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"39 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":"123521593","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.2014.7088948
Hu Zheng, David Smith, M. Elsdon, B. Livingstone, Wai Pang Ng, O. Yurduseven
This paper describes the use of indirect microwave holographic together with inverse scattering techniques for the reconstruction of the dielectric properties of unknown objects. The use of indirect microwave holography enables the complex field scattered from the object under imaging to be recovered from intensity-only scalar microwave measurements and therefore removes the requirement of using expensive vector measurement equipment. This significantly reduces the cost of the imaging system and simplifies the hardware implementation. Following the successful implementation of indirect holography method for shape and position reconstruction, we have explored an algorithm which combines indirect holography method and CSI method to solve the phaseless data reconstruction problem. Results presented here indicate that the material properties of composite dielectric objects can be accurately reconstructed using scalar measurements from indirect holography.
{"title":"Microwave inverse scattering using scalar indirect holographic techniques","authors":"Hu Zheng, David Smith, M. Elsdon, B. Livingstone, Wai Pang Ng, O. Yurduseven","doi":"10.1109/MMS.2014.7088948","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088948","url":null,"abstract":"This paper describes the use of indirect microwave holographic together with inverse scattering techniques for the reconstruction of the dielectric properties of unknown objects. The use of indirect microwave holography enables the complex field scattered from the object under imaging to be recovered from intensity-only scalar microwave measurements and therefore removes the requirement of using expensive vector measurement equipment. This significantly reduces the cost of the imaging system and simplifies the hardware implementation. Following the successful implementation of indirect holography method for shape and position reconstruction, we have explored an algorithm which combines indirect holography method and CSI method to solve the phaseless data reconstruction problem. Results presented here indicate that the material properties of composite dielectric objects can be accurately reconstructed using scalar measurements from indirect holography.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"76 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":"127690078","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.2014.7088946
S. Lagmiri, M. Amghar, N. Sbiti
This work presents synchronization between two different chaotic systems by a high gain observer. We have studied the synchronization problem between Rössler system and a new chaotic system recently developed in the literature. A theoretical frame is provided in order to show the convergence characteristics of the proposed observer under some satisfied assumptions. The observer performances are verified by numerical simulations.
{"title":"Synchronization between a new chaotic system and Rössler system by a high gain observer","authors":"S. Lagmiri, M. Amghar, N. Sbiti","doi":"10.1109/MMS.2014.7088946","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088946","url":null,"abstract":"This work presents synchronization between two different chaotic systems by a high gain observer. We have studied the synchronization problem between Rössler system and a new chaotic system recently developed in the literature. A theoretical frame is provided in order to show the convergence characteristics of the proposed observer under some satisfied assumptions. The observer performances are verified by numerical simulations.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"129 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":"130479779","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.2014.7088783
S. Dhar, S. Sankaralingam, B. Gupta, D. R. Poddar, R. Ghatak
A circularly polarized rectangular dielectric resonator antenna is presented. Circular polarization is obtained by introducing a cross slot to generate two near orthogonal degenerate modes having similar amplitudes and 900 phase difference. Four pin diodes are placed across the slots to switch between two polarization states namely, Right Hand Circular Polarization (RHCP) and Left Hand Circular Polarization (LHCP). The antenna yields a measured impedance bandwidth of 26.3% in case of LHCP and 28.2% in case of RHCP. The antenna radiates with a gain of 4.21 dB exhibiting an axial ratio bandwidth of radiate with an acceptable gain over the entire band.
{"title":"A reconfigurable dielectric resonator antenna for polarization diversity applications","authors":"S. Dhar, S. Sankaralingam, B. Gupta, D. R. Poddar, R. Ghatak","doi":"10.1109/MMS.2014.7088783","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088783","url":null,"abstract":"A circularly polarized rectangular dielectric resonator antenna is presented. Circular polarization is obtained by introducing a cross slot to generate two near orthogonal degenerate modes having similar amplitudes and 900 phase difference. Four pin diodes are placed across the slots to switch between two polarization states namely, Right Hand Circular Polarization (RHCP) and Left Hand Circular Polarization (LHCP). The antenna yields a measured impedance bandwidth of 26.3% in case of LHCP and 28.2% in case of RHCP. The antenna radiates with a gain of 4.21 dB exhibiting an axial ratio bandwidth of radiate with an acceptable gain over the entire band.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"47 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":"131646873","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.2014.7088941
M. A. Ennasar, H. Berbia, M. Essaaidi, O. El Mrabet, I. Aznabet, M. Aznabet, S. Tedjini
In this paper, a new modified S-shaped antenna for RFID -UHF tag application is presented. To provide a good conjugate matching between the S-shaped tag antenna and the ship, the technique of adding asymmetrical triangular stubs on both side of the tag chip was applied. The proposed tag antenna operating in the 915MHz RFID band proposed here has dimensions of only 51×43 mm2 and the operating bandwidth is from 909 to 920 MHz (to cover US Band) under -10dB reflection coefficient condition. Furthermore, the measured read range was found to be 0.56 m at 915 MHz. This small value makes the proposed antenna suitable for many RFID-UHF applications, especially those that may involve short reading distance.
{"title":"A new modified S-shaped compact antenna for RFID-UHF tag applications","authors":"M. A. Ennasar, H. Berbia, M. Essaaidi, O. El Mrabet, I. Aznabet, M. Aznabet, S. Tedjini","doi":"10.1109/MMS.2014.7088941","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088941","url":null,"abstract":"In this paper, a new modified S-shaped antenna for RFID -UHF tag application is presented. To provide a good conjugate matching between the S-shaped tag antenna and the ship, the technique of adding asymmetrical triangular stubs on both side of the tag chip was applied. The proposed tag antenna operating in the 915MHz RFID band proposed here has dimensions of only 51×43 mm2 and the operating bandwidth is from 909 to 920 MHz (to cover US Band) under -10dB reflection coefficient condition. Furthermore, the measured read range was found to be 0.56 m at 915 MHz. This small value makes the proposed antenna suitable for many RFID-UHF applications, especially those that may involve short reading distance.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"20 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":"133462039","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.2014.7088965
G. Monti, L. Corchia, L. Tarricone
Two novel textile antennas are presented in this paper. The geometry of the two antennas has been shaped so to mimic the logo of two popular companies: the French clothing company LACOSTE and the American multinational corporation APPLE Inc. Two prototypes fabricated by using a conductive non-woven textile on a layer of jeans are presented. Both prototypes were optimized to work at 1.8 GHz. From experimental data excellent performance are demonstrated.
{"title":"Textile logo antennas","authors":"G. Monti, L. Corchia, L. Tarricone","doi":"10.1109/MMS.2014.7088965","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088965","url":null,"abstract":"Two novel textile antennas are presented in this paper. The geometry of the two antennas has been shaped so to mimic the logo of two popular companies: the French clothing company LACOSTE and the American multinational corporation APPLE Inc. Two prototypes fabricated by using a conductive non-woven textile on a layer of jeans are presented. Both prototypes were optimized to work at 1.8 GHz. From experimental data excellent performance are demonstrated.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"83 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":"131315502","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.2014.7088974
E. Aguirre, P. López-Iturri, L. Azpilicueta, F. Falcone
In this work, different types of indoor vehicular scenarios will be characterized in order to provide assessment in the performance of on-board wireless systems, with the aid of an in-house developed 3D ray launching code. Estimations of received power as well as of time domain parameters show the relevance of multipath propagation and hence, the impact of topology and morphology in the overall system performance.
{"title":"Characterization of wireless channel response in in-vehicle environments","authors":"E. Aguirre, P. López-Iturri, L. Azpilicueta, F. Falcone","doi":"10.1109/MMS.2014.7088974","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088974","url":null,"abstract":"In this work, different types of indoor vehicular scenarios will be characterized in order to provide assessment in the performance of on-board wireless systems, with the aid of an in-house developed 3D ray launching code. Estimations of received power as well as of time domain parameters show the relevance of multipath propagation and hence, the impact of topology and morphology in the overall system performance.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"45 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":"115932744","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.2014.7088921
L. Chouti, A. Behloul, I. Messaoudene, A. Benghalia
In this paper, we present a simulation and design of a microstrip MIMO antenna array. The basic configuration is a microstrip patch antennas consist of a metallic patch on one side of the dielectric substrate with a ground plane on the other side. The antenna system consists of 2×4 radiating elements of similar geometry printed on a substrate. The designed antenna is excited using the microstrip feeding. The theoretical analysis is based on the finite-difference time-domain (FDTD) method. In these analyses the characteristics of the MIMO antenna arrays are presented in terms of return loss, mutual coupling, gain and radiation patterns. The proposed antenna is simulated by using High Frequency Structure Simulator (HFSS). The designed antenna is suitable for MIMO systems operating for several WLAN applications.
{"title":"Numerical analysis of a microstrip MIMO antenna array","authors":"L. Chouti, A. Behloul, I. Messaoudene, A. Benghalia","doi":"10.1109/MMS.2014.7088921","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088921","url":null,"abstract":"In this paper, we present a simulation and design of a microstrip MIMO antenna array. The basic configuration is a microstrip patch antennas consist of a metallic patch on one side of the dielectric substrate with a ground plane on the other side. The antenna system consists of 2×4 radiating elements of similar geometry printed on a substrate. The designed antenna is excited using the microstrip feeding. The theoretical analysis is based on the finite-difference time-domain (FDTD) method. In these analyses the characteristics of the MIMO antenna arrays are presented in terms of return loss, mutual coupling, gain and radiation patterns. The proposed antenna is simulated by using High Frequency Structure Simulator (HFSS). The designed antenna is suitable for MIMO systems operating for several WLAN applications.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"2015 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":"130722536","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.2014.7088943
I. Aznabet, O. El Mrabet, M. Khalladi
In this paper, a new modified T-shaped antenna for RFID-UHF tag application is presented. To achieve a good conjugate matching between the tag chip and the antenna, the technique of adding four half-circle shaped patches at the both ends of each T monopoles was applied. The measured maximum read range in free space is 7.5. By adding foam substrate of thickness 3 mm between the tag antenna and the metallic plate the read range remains constant. Details of the proposed tag antenna design, as well as simulated and measured results are presented and discussed in this paper.
{"title":"Free and on metal modified T-shaped tag antenna for UHF-RFID applications","authors":"I. Aznabet, O. El Mrabet, M. Khalladi","doi":"10.1109/MMS.2014.7088943","DOIUrl":"https://doi.org/10.1109/MMS.2014.7088943","url":null,"abstract":"In this paper, a new modified T-shaped antenna for RFID-UHF tag application is presented. To achieve a good conjugate matching between the tag chip and the antenna, the technique of adding four half-circle shaped patches at the both ends of each T monopoles was applied. The measured maximum read range in free space is 7.5. By adding foam substrate of thickness 3 mm between the tag antenna and the metallic plate the read range remains constant. Details of the proposed tag antenna design, as well as simulated and measured results are presented and discussed in this paper.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"49 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":"127849470","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.2014.7089001
Abdenasser Benahmed, L. Zenkouar, E. Hamzaoui
In this paper, we propose a new method based on the blind source separation concept to estimate the direction of arrival (DOA) for a smart antenna system and then steer its radiation pattern toward the desired radio-frequency emitter. Indeed, we generate a set of observations according to a mathematical model of smart antennas, and we apply various separation methods, such as ICA based ones to perform the extraction of the independent components and the mixing matrix. The tested algorithms are classified according to their performance index of separability. When the best separation is achieved, the extracted independent components are characterized using their power spectral densities which will be used to calculate the beamforming vectors.
{"title":"DOA estimation for automatic steering of a smart antenna radiation pattern using the conventional ICA-based blind source separation method","authors":"Abdenasser Benahmed, L. Zenkouar, E. Hamzaoui","doi":"10.1109/MMS.2014.7089001","DOIUrl":"https://doi.org/10.1109/MMS.2014.7089001","url":null,"abstract":"In this paper, we propose a new method based on the blind source separation concept to estimate the direction of arrival (DOA) for a smart antenna system and then steer its radiation pattern toward the desired radio-frequency emitter. Indeed, we generate a set of observations according to a mathematical model of smart antennas, and we apply various separation methods, such as ICA based ones to perform the extraction of the independent components and the mixing matrix. The tested algorithms are classified according to their performance index of separability. When the best separation is achieved, the extracted independent components are characterized using their power spectral densities which will be used to calculate the beamforming vectors.","PeriodicalId":166697,"journal":{"name":"Proceedings of 2014 Mediterranean Microwave Symposium (MMS2014)","volume":"95 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":"121555940","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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