Pub Date : 2019-10-01DOI: 10.1109/MMS48040.2019.9157250
Fakher Sboui, J. Macháč, L. Latrach, A. Gharsallah
This communication was developed with the purpose of presenting a frequency reconfigurable rectangular cavity backed antenna based substrate integrated waveguide, using for wireless applications. The frequency agility is obtained by the integration of a crystal liquid material between the upper face and the substrate of the proposed SIW antenna, this material maintains the proprieties of changing the permittivity and the permeability by applying a DC voltage. This is leads to the variation of the resonance frequency. Simulated results obtained by CST simulator show that the first band is tuned from 27 GHz to 28 GHz, the second one is varied from 27.85 to 29 GHz. and the frequency in the third band is changing from 29.45 GHz to 30.89 GHz. Those results are obtained when the permittivity of the CL is varying from 2.7 to 3.4. The maximum gain is around 7.92 dB and a high radiation efficiency is obtained. The proposed antenna is required for wireless applications.
{"title":"Triple Band Tunable SIW Cavity Antenna with Cristal Liquid Materials for Wireless Applications","authors":"Fakher Sboui, J. Macháč, L. Latrach, A. Gharsallah","doi":"10.1109/MMS48040.2019.9157250","DOIUrl":"https://doi.org/10.1109/MMS48040.2019.9157250","url":null,"abstract":"This communication was developed with the purpose of presenting a frequency reconfigurable rectangular cavity backed antenna based substrate integrated waveguide, using for wireless applications. The frequency agility is obtained by the integration of a crystal liquid material between the upper face and the substrate of the proposed SIW antenna, this material maintains the proprieties of changing the permittivity and the permeability by applying a DC voltage. This is leads to the variation of the resonance frequency. Simulated results obtained by CST simulator show that the first band is tuned from 27 GHz to 28 GHz, the second one is varied from 27.85 to 29 GHz. and the frequency in the third band is changing from 29.45 GHz to 30.89 GHz. Those results are obtained when the permittivity of the CL is varying from 2.7 to 3.4. The maximum gain is around 7.92 dB and a high radiation efficiency is obtained. The proposed antenna is required for wireless applications.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133457283","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 : 2019-10-01DOI: 10.1109/MMS48040.2019.9157291
A. Khodja, D. Abbou, M. Yagoub, R. Touhami
A recursive algorithm using suitable choice of trial functions is proposed for adequate analysis of uniaxial anisotropic microstrip type structures in multilayer configuration. The technique is based on the extension of the modal domain integral technique involving the Galerkin's procedure combined with the formalism of mathematical operators. Such approach allows a more efficient resolution of boundary conditions. The efficiency of the proposed algorithm was demonstrated through a successful comparison of the dispersion parameters with published results.
{"title":"Efficient Recursive Algorithm for Analysis of Anisotropic Microstrip Structures in Multilayer Configuration","authors":"A. Khodja, D. Abbou, M. Yagoub, R. Touhami","doi":"10.1109/MMS48040.2019.9157291","DOIUrl":"https://doi.org/10.1109/MMS48040.2019.9157291","url":null,"abstract":"A recursive algorithm using suitable choice of trial functions is proposed for adequate analysis of uniaxial anisotropic microstrip type structures in multilayer configuration. The technique is based on the extension of the modal domain integral technique involving the Galerkin's procedure combined with the formalism of mathematical operators. Such approach allows a more efficient resolution of boundary conditions. The efficiency of the proposed algorithm was demonstrated through a successful comparison of the dispersion parameters with published results.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"2 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132987626","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 : 2019-10-01DOI: 10.1109/mms48040.2019.9157295
Avez Syed, R. Aldhaheri
In this paper, a compact MIMO antenna with improved isolation is proposed for WLAN applications. The overall dimension of the antenna is only 35 mm × 62 mm. Two identical monopole patch antennas are backed by a modified ground plane. Three rectangular cuts on each antenna element along with modified ground plane are responsible for higher isolation of about 40 dB at 5.5 GHz. The antenna prototype is printed on FR4 substrate (εr=4.4, tanδ=0.02) of thickness 1.5 mm. The measured result show that the −10dB impedance bandwidth of 5.25 − 5.75 GHz for WLAN. The reflection coefficient, mutual coupling, current distribution, radiation patterns, and gain have been simulated to justify the functionality of the MIMO antenna.
{"title":"Low Profile and High Isolation MIMO Antenna for WLAN Application","authors":"Avez Syed, R. Aldhaheri","doi":"10.1109/mms48040.2019.9157295","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157295","url":null,"abstract":"In this paper, a compact MIMO antenna with improved isolation is proposed for WLAN applications. The overall dimension of the antenna is only 35 mm × 62 mm. Two identical monopole patch antennas are backed by a modified ground plane. Three rectangular cuts on each antenna element along with modified ground plane are responsible for higher isolation of about 40 dB at 5.5 GHz. The antenna prototype is printed on FR4 substrate (εr=4.4, tanδ=0.02) of thickness 1.5 mm. The measured result show that the −10dB impedance bandwidth of 5.25 − 5.75 GHz for WLAN. The reflection coefficient, mutual coupling, current distribution, radiation patterns, and gain have been simulated to justify the functionality of the MIMO antenna.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114371499","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 : 2019-10-01DOI: 10.1109/mms48040.2019.9157263
Fakher Sboui, J. Macháč, A. Gharsallah
A novel compact, low profile frequency reconfigurable antennas, loaded by varactors and based on substrate integrated waveguide (SIW) structure, are proposed. Due to the loaded varactors, the operating frequency of the antenna can be tuned in a wide frequency range by changing electric bias. Two samples of frequency reconfigurable SIW cavity backed antennas are presented. They are designed, fabricated and measured. The antenna radiating from a circular slot is designed for low frequency band (2.28 GHz). The antenna radiating from a rectangular slot is designed to radiate at higher frequencies (11 GHz). The experimental results demonstrate the frequency tunability of the antennas. The radiation pattern and gain characterize the antennas good radiation performance, which is suitable for modern wireless communication systems.
{"title":"Varactor-loaded SIW cavity backed antennas for modern wireless communication systems","authors":"Fakher Sboui, J. Macháč, A. Gharsallah","doi":"10.1109/mms48040.2019.9157263","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157263","url":null,"abstract":"A novel compact, low profile frequency reconfigurable antennas, loaded by varactors and based on substrate integrated waveguide (SIW) structure, are proposed. Due to the loaded varactors, the operating frequency of the antenna can be tuned in a wide frequency range by changing electric bias. Two samples of frequency reconfigurable SIW cavity backed antennas are presented. They are designed, fabricated and measured. The antenna radiating from a circular slot is designed for low frequency band (2.28 GHz). The antenna radiating from a rectangular slot is designed to radiate at higher frequencies (11 GHz). The experimental results demonstrate the frequency tunability of the antennas. The radiation pattern and gain characterize the antennas good radiation performance, which is suitable for modern wireless communication systems.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116124422","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 : 2019-10-01DOI: 10.1109/mms48040.2019.9157260
Zied Troudi, L. Osman
In this paper, a novel compact band-pass filter is designed and simulated by using new miniaturized split ring resonator. The size of the proposed opposite arm SRR (OA-SRR) can be reduced by 15% compared with classical SRR. The developed bandpass filter occupies an area equal to 28.8*7.5mm giving high miniaturization up to 76% compared to the conventional structure. The resonance frequency has been approximately valued at 1.9 GHz, as well, the insertion loss is less than 1dB with a good rejection outside the band.
{"title":"Analysis and Design of Band-Pass Filter Based on Metamaterial","authors":"Zied Troudi, L. Osman","doi":"10.1109/mms48040.2019.9157260","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157260","url":null,"abstract":"In this paper, a novel compact band-pass filter is designed and simulated by using new miniaturized split ring resonator. The size of the proposed opposite arm SRR (OA-SRR) can be reduced by 15% compared with classical SRR. The developed bandpass filter occupies an area equal to 28.8*7.5mm giving high miniaturization up to 76% compared to the conventional structure. The resonance frequency has been approximately valued at 1.9 GHz, as well, the insertion loss is less than 1dB with a good rejection outside the band.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124217217","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 : 2019-10-01DOI: 10.1109/mms48040.2019.9157285
Rania Rabhi, S. Gahgouh, J. Ribero, A. Gharsallah
This paper is devoted to the study and design of flexible and transparent antenna encased inside a soft smart contact lens for medical diagnostics operating in the Industrial, Scientific, and Medical (ISM) band (5.83GHz). The proposed antenna is based on the integration of conductive transparent graphene on a bio-compatible polymer substrate with thickness of 0,25 mm and dielectric constant of approximately 2,65. The antenna dimensions and its performance are determined using CST simulator. Good results in terms of S11 (−35.13dB), gain (2.91dB), directivity (3.02dBi), bandwidth (8.06%) and efficiency (96.35%) are reached. Significant gain improvement is observed when integrating graphene as contact lens antenna, as compared to a reference antenna made from gold.
{"title":"Design of transparent and flexible antenna for smart contact lenses","authors":"Rania Rabhi, S. Gahgouh, J. Ribero, A. Gharsallah","doi":"10.1109/mms48040.2019.9157285","DOIUrl":"https://doi.org/10.1109/mms48040.2019.9157285","url":null,"abstract":"This paper is devoted to the study and design of flexible and transparent antenna encased inside a soft smart contact lens for medical diagnostics operating in the Industrial, Scientific, and Medical (ISM) band (5.83GHz). The proposed antenna is based on the integration of conductive transparent graphene on a bio-compatible polymer substrate with thickness of 0,25 mm and dielectric constant of approximately 2,65. The antenna dimensions and its performance are determined using CST simulator. Good results in terms of S11 (−35.13dB), gain (2.91dB), directivity (3.02dBi), bandwidth (8.06%) and efficiency (96.35%) are reached. Significant gain improvement is observed when integrating graphene as contact lens antenna, as compared to a reference antenna made from gold.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129714729","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 : 2019-10-01DOI: 10.1109/MMS48040.2019.9157298
Joydeep Pal, K. Patra, B. Gupta
Unprecedented growth in data traffic due to several high end customer applications such 3D visual, Augmented Reality (AR), Virtual Reality (VR), High Definition (HD) video enforce the efficient usage of existing spectrum and parallely demands additional frequency spectra in higher frequency bands for upcoming 5G ecosystem. In this work a new frequency spectrum is prescribed in K band that has an inherent atmospheric loss window. A microstrip patch antenna has been designed and fabricated in K band i.e. at 22GHz. In this manuscript we have investigated indoor channel characterisation at 22GHz and modelled the deviation Friis transmission equation for indoor environment for UDN and IoT application in 5G domain.
{"title":"Indoor Channel Characterisation and Modelling for 5G Applications at 22GHz","authors":"Joydeep Pal, K. Patra, B. Gupta","doi":"10.1109/MMS48040.2019.9157298","DOIUrl":"https://doi.org/10.1109/MMS48040.2019.9157298","url":null,"abstract":"Unprecedented growth in data traffic due to several high end customer applications such 3D visual, Augmented Reality (AR), Virtual Reality (VR), High Definition (HD) video enforce the efficient usage of existing spectrum and parallely demands additional frequency spectra in higher frequency bands for upcoming 5G ecosystem. In this work a new frequency spectrum is prescribed in K band that has an inherent atmospheric loss window. A microstrip patch antenna has been designed and fabricated in K band i.e. at 22GHz. In this manuscript we have investigated indoor channel characterisation at 22GHz and modelled the deviation Friis transmission equation for indoor environment for UDN and IoT application in 5G domain.","PeriodicalId":373813,"journal":{"name":"2019 IEEE 19th Mediterranean Microwave Symposium (MMS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124679657","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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