Pub Date : 2009-12-01DOI: 10.1109/MMS.2009.5409783
M. A. A. Abessolo, M. Aznabet, A. Alilouch, O. Mrabet, M. Essaaidi, M. Beruete, M. Navarro‐Cía, F. Falcone, M. Sorolla, N. Aknin, M. El Moussaoui
In this paper, we study a planar horn antenna fed by a rectangular waveguide operating in the fundamental mode. The aim of this work is to enhance gain by periodic stacked subwavelengh hole array. We applied several types of holes with different thicknesses of the metal plate and with varied distance between the periodic stacked subwavelength hole array and the antenna. We found a good improvement of gain from 6 to 17.5dB in some cases. We also showed that the directivity of the antenna is good in the case of transverse resonance.
{"title":"Planar horn antenna: Application of periodic stacked subwavelength hole array with metamaterials proprieties","authors":"M. A. A. Abessolo, M. Aznabet, A. Alilouch, O. Mrabet, M. Essaaidi, M. Beruete, M. Navarro‐Cía, F. Falcone, M. Sorolla, N. Aknin, M. El Moussaoui","doi":"10.1109/MMS.2009.5409783","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409783","url":null,"abstract":"In this paper, we study a planar horn antenna fed by a rectangular waveguide operating in the fundamental mode. The aim of this work is to enhance gain by periodic stacked subwavelengh hole array. We applied several types of holes with different thicknesses of the metal plate and with varied distance between the periodic stacked subwavelength hole array and the antenna. We found a good improvement of gain from 6 to 17.5dB in some cases. We also showed that the directivity of the antenna is good in the case of transverse resonance.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133461423","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 : 2009-11-01DOI: 10.1109/mms.2009.5409816
F. van Dijk, A. Enard, G. Duan, A. Accard, F. Lelarge, A. Shen, O. Parillaud, A. Akrout, G. de Valicourt, S. Ginestar, A. Ramdane
In this paper we present the different type of laser diodes that are developed at Alcatel-Thales III-V Lab in order to fulfil different functions required for radio over fibre and radar systems. The first device that is presented is a directly modulated laser with a bandwidth exceeding 20 GHz and good linearity that is used for analog wideband link. This kind of device is precious for remote delivery and distribution of wide bandwidth signals with very low attenuations. The second device we will present is a passive mode-locked quantum dash lasers that has sufficiently good phase noise performances to be used as a carrier for 60 GHz wireless transmission links. The third device we will present is a dual wavelength laser. It can be used for a wide and potentially fast tuning of the frequency generated by heterodyning two optical wavelengths on a photodetector, the photodetector behaving as a photomixer.
{"title":"Laser diodes for microwave and millimeter wave photonics","authors":"F. van Dijk, A. Enard, G. Duan, A. Accard, F. Lelarge, A. Shen, O. Parillaud, A. Akrout, G. de Valicourt, S. Ginestar, A. Ramdane","doi":"10.1109/mms.2009.5409816","DOIUrl":"https://doi.org/10.1109/mms.2009.5409816","url":null,"abstract":"In this paper we present the different type of laser diodes that are developed at Alcatel-Thales III-V Lab in order to fulfil different functions required for radio over fibre and radar systems. The first device that is presented is a directly modulated laser with a bandwidth exceeding 20 GHz and good linearity that is used for analog wideband link. This kind of device is precious for remote delivery and distribution of wide bandwidth signals with very low attenuations. The second device we will present is a passive mode-locked quantum dash lasers that has sufficiently good phase noise performances to be used as a carrier for 60 GHz wireless transmission links. The third device we will present is a dual wavelength laser. It can be used for a wide and potentially fast tuning of the frequency generated by heterodyning two optical wavelengths on a photodetector, the photodetector behaving as a photomixer.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126140915","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409801
N. Ghannay, M. B. Ben Salah, F. Romdhani, A. Samet
In this paper, the effects of a metal plate to antenna parameters (input impedance, return loss and radiation patterns) is presented when the RFID tag antenna is horizontally placed near the metal plate. The metal plate has finite size and rectangular shape. The new technique based on the moment method and RWG basis functions developed by Ghannay et al. has been used to simulate the dependency of antenna parameters on the size of the plate and the distance between the antenna and the plate.
{"title":"Effects of metal plate to RFID tag antenna parameters","authors":"N. Ghannay, M. B. Ben Salah, F. Romdhani, A. Samet","doi":"10.1109/MMS.2009.5409801","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409801","url":null,"abstract":"In this paper, the effects of a metal plate to antenna parameters (input impedance, return loss and radiation patterns) is presented when the RFID tag antenna is horizontally placed near the metal plate. The metal plate has finite size and rectangular shape. The new technique based on the moment method and RWG basis functions developed by Ghannay et al. has been used to simulate the dependency of antenna parameters on the size of the plate and the distance between the antenna and the plate.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115079488","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409767
Bashir Alshami, Hassan Aboulnour, M. Dib
The design of a Broadband Electrically Steerable Passive Array Radiator (BB-ESPAR) antenna as a uniform structure, for broadband modern communication systems, is proposed in this paper.
针对宽带现代通信系统，提出了一种统一结构的宽带电控无源阵列辐射天线(BB-ESPAR)。
{"title":"Design of a broadband ESPAR antenna","authors":"Bashir Alshami, Hassan Aboulnour, M. Dib","doi":"10.1109/MMS.2009.5409767","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409767","url":null,"abstract":"The design of a Broadband Electrically Steerable Passive Array Radiator (BB-ESPAR) antenna as a uniform structure, for broadband modern communication systems, is proposed in this paper.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116438163","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409820
A. Eskandari, M. N. Moghaddasi, M. A. Honarvar
In this paper a novel circularly polarized dual-feed microstrip patch antenna is proposed and also Electromagnetic Band-Gap (EBG) structures are utilized to enhance the antenna efficiency and bandwidth. The microstrip patch is a square with a chamfered corner and a cross-slot of equal arm lengths. It is fed by 50Ω two microstrip lines. The proposed antenna is designed to work on a substrate Taconic RF-30 that has a thickness of 0.76 mm and relative permittivity (εr) of 2.92. This substrate has several vaccum holes for realization EBG. The proposed structure is designed and simulated by Ansoft HFSS software. Effects of varying the parameters of the patch antenna on the performance of the antenna have also been studied.
{"title":"Design of a novel circularly polarized microstrip patch antenna using EBG structure","authors":"A. Eskandari, M. N. Moghaddasi, M. A. Honarvar","doi":"10.1109/MMS.2009.5409820","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409820","url":null,"abstract":"In this paper a novel circularly polarized dual-feed microstrip patch antenna is proposed and also Electromagnetic Band-Gap (EBG) structures are utilized to enhance the antenna efficiency and bandwidth. The microstrip patch is a square with a chamfered corner and a cross-slot of equal arm lengths. It is fed by 50Ω two microstrip lines. The proposed antenna is designed to work on a substrate Taconic RF-30 that has a thickness of 0.76 mm and relative permittivity (εr) of 2.92. This substrate has several vaccum holes for realization EBG. The proposed structure is designed and simulated by Ansoft HFSS software. Effects of varying the parameters of the patch antenna on the performance of the antenna have also been studied.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116559868","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409809
N. Murad, M. Lancaster, Yi Wang, M. Ke
This paper presents a micromachined patch antenna array with an integrated 2×2 Butler matrix (BM) beamformer. It was designed at 63 GHz and simulated using CST Microwave Studio 3D simulator. The BM is made using a low loss air filled rectangular coaxial line. The structure is constructed by bonding five layers of gold coated photoresist SU-8, each 200 microns thick. The experimental result shows a good matching achieved with return loss of −13 dB and inter-port isolation of about −22 dB at 63 GHz.
本文提出了一种集成2×2巴特勒矩阵波束形成器的微机械贴片天线阵列。设计频率为63 GHz，采用CST Microwave Studio 3D模拟器进行仿真。BM是用低损耗的填充空气的矩形同轴线制成的。该结构由五层镀金光刻胶SU-8粘合而成，每层200微米厚。实验结果表明，在63 GHz时，回波损耗为- 13 dB，端口间隔离约为- 22 dB，实现了良好的匹配。
{"title":"Micromachined millimeter-wave Butler matrix with a patch antenna array","authors":"N. Murad, M. Lancaster, Yi Wang, M. Ke","doi":"10.1109/MMS.2009.5409809","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409809","url":null,"abstract":"This paper presents a micromachined patch antenna array with an integrated 2×2 Butler matrix (BM) beamformer. It was designed at 63 GHz and simulated using CST Microwave Studio 3D simulator. The BM is made using a low loss air filled rectangular coaxial line. The structure is constructed by bonding five layers of gold coated photoresist SU-8, each 200 microns thick. The experimental result shows a good matching achieved with return loss of −13 dB and inter-port isolation of about −22 dB at 63 GHz.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121404322","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409787
Abdulla. A. Rabeea, F. Barlow, A. Elshabini
This paper presents an easy follow up design methodology for designing second order microstrip dual-mode bandpass filters using full-wave electromagnetic (EM) simulation tools. The developed methodology was validated by designed and fabricated second order microstrip dual-mode bandpass filters. The simulated and measured performances are presented.
{"title":"Design methodology for designing second order microstrip dual-mode filters","authors":"Abdulla. A. Rabeea, F. Barlow, A. Elshabini","doi":"10.1109/MMS.2009.5409787","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409787","url":null,"abstract":"This paper presents an easy follow up design methodology for designing second order microstrip dual-mode bandpass filters using full-wave electromagnetic (EM) simulation tools. The developed methodology was validated by designed and fabricated second order microstrip dual-mode bandpass filters. The simulated and measured performances are presented.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124159518","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409829
H. Oraizi, A. Sharifi
Since the common microstrip power dividers are generally low power devices, in this paper a modified wideband Gysel power divider is proposed, which possesses high power handling capabilities and arbitrary power division. The proposed divider configuration has the provision of heat transfer by resistors connected to the ground plane through vias. The divider structure is devised in such a way that voltage distributions in its two half circuit are symmetrical and the even-and odd- mode analysis may be applied. The method of least squares (MLS) is used to develop an algorithm for its design and optimization, which also incorporates impedance matching among its input and output ports. The widths and lengths of line sections are determined in the design procedure. the proposed power divider and its MLS design algorithm are verified by the electromagnetic softwares.
{"title":"Design and optimization of a two-way Gysel power divider with arbitrary power division and impedance matching","authors":"H. Oraizi, A. Sharifi","doi":"10.1109/MMS.2009.5409829","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409829","url":null,"abstract":"Since the common microstrip power dividers are generally low power devices, in this paper a modified wideband Gysel power divider is proposed, which possesses high power handling capabilities and arbitrary power division. The proposed divider configuration has the provision of heat transfer by resistors connected to the ground plane through vias. The divider structure is devised in such a way that voltage distributions in its two half circuit are symmetrical and the even-and odd- mode analysis may be applied. The method of least squares (MLS) is used to develop an algorithm for its design and optimization, which also incorporates impedance matching among its input and output ports. The widths and lengths of line sections are determined in the design procedure. the proposed power divider and its MLS design algorithm are verified by the electromagnetic softwares.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"169 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134137507","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409760
M. Meloui, I. Akhchaf, H. Setti, M. Charif, M. Essaaidi
This paper presents a design technique for a low-noise amplifier for the 1.8–4 GHz ultra wideband (UWB) wireless receivers. The LNA uses a circuit topology consisting of one gain stage with series inductor feedback using ATF technology and it is operated at 1 V. The noise figure of this LNA varies from 3 to 1.5 dB, and its gain is very flat 10 dB through out frequency band spanning from 1.8 to 4 Ghz. These results were obtained using Agilent ADS commercial simulator and confirmed with ansoft designer utilizing ATF-10136 amplifier technology.
{"title":"A flat gain low noise amplifier for1.8 to 4 GHz wide band wireless receivers","authors":"M. Meloui, I. Akhchaf, H. Setti, M. Charif, M. Essaaidi","doi":"10.1109/MMS.2009.5409760","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409760","url":null,"abstract":"This paper presents a design technique for a low-noise amplifier for the 1.8–4 GHz ultra wideband (UWB) wireless receivers. The LNA uses a circuit topology consisting of one gain stage with series inductor feedback using ATF technology and it is operated at 1 V. The noise figure of this LNA varies from 3 to 1.5 dB, and its gain is very flat 10 dB through out frequency band spanning from 1.8 to 4 Ghz. These results were obtained using Agilent ADS commercial simulator and confirmed with ansoft designer utilizing ATF-10136 amplifier technology.","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134428757","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 : 2009-11-01DOI: 10.1109/MMS.2009.5409770
F. T. Alami, N. Aknin, A. El Moussaoui
Admission control of a WCDMA network is a very important task which an operator must take into account in order to avoid the instability of mobile network due to the increasing of interference level when a new mobile station appears in the cell. It is based on the target load factor value fixed in the dimensioning phase. The numerical results are obtained by Matlab and an interface is developed by JAVA language
{"title":"Cell capacity improvement by using a resources liberation mechanism in uplink direction","authors":"F. T. Alami, N. Aknin, A. El Moussaoui","doi":"10.1109/MMS.2009.5409770","DOIUrl":"https://doi.org/10.1109/MMS.2009.5409770","url":null,"abstract":"Admission control of a WCDMA network is a very important task which an operator must take into account in order to avoid the instability of mobile network due to the increasing of interference level when a new mobile station appears in the cell. It is based on the target load factor value fixed in the dimensioning phase. The numerical results are obtained by Matlab and an interface is developed by JAVA language","PeriodicalId":300247,"journal":{"name":"2009 Mediterrannean Microwave Symposium (MMS)","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131640021","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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