Pub Date : 2015-05-25DOI: 10.1109/GSMM.2015.7175467
A. Doghri, T. Djerafi, K. Wu
This paper analyses the main configuration of the substrate integrated waveguide (SIW) allowing spatial arrangement and miniaturization. With the increasing performance demand on wireless systems, high-density millimeter-wave system integration techniques have been under intense development. The performance of the guided-wave structure is crucial for the design of millimeter and sub-millimeter systems. Following the appearance of SIW, many researchers worked to develop an improvement of the standard version. The main known configurations of SIW: half mode SIW, folded C-type SIW, ridge SIW, E-plane SIW and folded L-type SIW are summarized in this paper. The losses and propagation constant are compared. The proposed configurations don't allow only spatial arrangement and miniaturization but also the control of other characteristics like bandwidth, loss and impedance. To illustrate the advantages and flexibility of these lines, four structures feed by this type of lines are presented.
{"title":"Multi-dimensional substrate integrated waveguide for high density integration","authors":"A. Doghri, T. Djerafi, K. Wu","doi":"10.1109/GSMM.2015.7175467","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175467","url":null,"abstract":"This paper analyses the main configuration of the substrate integrated waveguide (SIW) allowing spatial arrangement and miniaturization. With the increasing performance demand on wireless systems, high-density millimeter-wave system integration techniques have been under intense development. The performance of the guided-wave structure is crucial for the design of millimeter and sub-millimeter systems. Following the appearance of SIW, many researchers worked to develop an improvement of the standard version. The main known configurations of SIW: half mode SIW, folded C-type SIW, ridge SIW, E-plane SIW and folded L-type SIW are summarized in this paper. The losses and propagation constant are compared. The proposed configurations don't allow only spatial arrangement and miniaturization but also the control of other characteristics like bandwidth, loss and impedance. To illustrate the advantages and flexibility of these lines, four structures feed by this type of lines are presented.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133343812","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175449
Venu-Madhav-Reddy Gongal-Reddy, F. Feng, Qi-jun Zhang
This paper propose to develop the combined neural networks and transfer functions (neuro-TF) for parametric modeling of millimeter-wave passive components. Artificial neural networks (ANN) techniques are recognized as a powerful tool for modeling the EM behavior of microwave components. In this paper, we train the ANN to map geometrical variables onto coefficients of transfer functions. The model obtained using our proposed technique can achieve good accuracy, and can be further used in the high-level design. Two millimeter-wave examples are used to demonstrate the validity of this technique.
{"title":"Parametric modeling of millimeter-wave passive components using combined neural networks and transfer functions","authors":"Venu-Madhav-Reddy Gongal-Reddy, F. Feng, Qi-jun Zhang","doi":"10.1109/GSMM.2015.7175449","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175449","url":null,"abstract":"This paper propose to develop the combined neural networks and transfer functions (neuro-TF) for parametric modeling of millimeter-wave passive components. Artificial neural networks (ANN) techniques are recognized as a powerful tool for modeling the EM behavior of microwave components. In this paper, we train the ANN to map geometrical variables onto coefficients of transfer functions. The model obtained using our proposed technique can achieve good accuracy, and can be further used in the high-level design. Two millimeter-wave examples are used to demonstrate the validity of this technique.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122773754","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175439
W. Abdel-Wahab, S. Safavi-Naeini, Ying Wang
This paper presents a novel design to enhance the gain of the substrate integrated waveguide (SIW)-integrated microstrip patch antenna. An SIW air-filled cavity is created under the patch, which is excited by a narrow slot. The simulated results for reflection coefficient, gain and radiation pattern are presented. The antenna shows a 5 dB gain enhancement over the operating frequency band 54.9-64 GHz.
{"title":"Gain enhancement of SIW-integrated patch antenna for emerging millimeter wave systems","authors":"W. Abdel-Wahab, S. Safavi-Naeini, Ying Wang","doi":"10.1109/GSMM.2015.7175439","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175439","url":null,"abstract":"This paper presents a novel design to enhance the gain of the substrate integrated waveguide (SIW)-integrated microstrip patch antenna. An SIW air-filled cavity is created under the patch, which is excited by a narrow slot. The simulated results for reflection coefficient, gain and radiation pattern are presented. The antenna shows a 5 dB gain enhancement over the operating frequency band 54.9-64 GHz.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115858208","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175453
Hassna Ouassal, L. Roy, J. Shaker, R. Chaharmir
We present theoretical studies on an EBG line-defect waveguide which is formed in a two-dimensional (2D) slab, comprised of a square lattice of multi-layer metallic open square rings (OSRs). The waveguide is created by reducing the size of the layered rings to create a channel area. We compute the dispersion diagrams and the eigenfield distributions of the guided modes. It is shown that these guided modes are confined to the channel waveguide vertically (as a result of confinement via the slab) and horizontally (as a result of confinement by the EBG lattice). Also it is observed that the number of layers having defects corresponds to the number of confined modes. Furthermore, single guided, in-gap and broadband mode operation is illustrated. These characteristics give rise to a compact, broadband and multi-band EBG slab waveguide.
{"title":"Guided modes of a line-defect EBG slab waveguide in a 3-D square lattice of metallic open square rings","authors":"Hassna Ouassal, L. Roy, J. Shaker, R. Chaharmir","doi":"10.1109/GSMM.2015.7175453","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175453","url":null,"abstract":"We present theoretical studies on an EBG line-defect waveguide which is formed in a two-dimensional (2D) slab, comprised of a square lattice of multi-layer metallic open square rings (OSRs). The waveguide is created by reducing the size of the layered rings to create a channel area. We compute the dispersion diagrams and the eigenfield distributions of the guided modes. It is shown that these guided modes are confined to the channel waveguide vertically (as a result of confinement via the slab) and horizontally (as a result of confinement by the EBG lattice). Also it is observed that the number of layers having defects corresponds to the number of confined modes. Furthermore, single guided, in-gap and broadband mode operation is illustrated. These characteristics give rise to a compact, broadband and multi-band EBG slab waveguide.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122457538","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175443
Mustapha Bennai, L. Talbi, J. Le Bel, K. Hettak
This paper presents and analyzes the results of medium range propagation channel measurements with and without the presence of a reflecting obstacle at 60 GHz. Root-Mean-Square (RMS) delay spread, path loss and signal intensity are investigated. A strong relationship is found between the use of a reflector and the received signal strength. An RMS delay spread is established to help identify a possibility for InterSymbol Interference (ISI) to occur. Based on measurements held in the intersection of two corridors under non-line-of-sight (NLOS) scenario without reflector, we noticed that diffracted waves from the propagation environment were present. However, a very high loss of received signal power is noticed. In the meantime, it is found that the presence of adequate passive reflectors, strategically located, will help minimize delay spread and maximize the received energy level in NLOS scenarios. Finally, the results achieved using a reflector can be used to help design 60 GHz medium range NLOS backhaul.
{"title":"Medium range backhaul feasibility under NLOS conditions at 60 GHz","authors":"Mustapha Bennai, L. Talbi, J. Le Bel, K. Hettak","doi":"10.1109/GSMM.2015.7175443","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175443","url":null,"abstract":"This paper presents and analyzes the results of medium range propagation channel measurements with and without the presence of a reflecting obstacle at 60 GHz. Root-Mean-Square (RMS) delay spread, path loss and signal intensity are investigated. A strong relationship is found between the use of a reflector and the received signal strength. An RMS delay spread is established to help identify a possibility for InterSymbol Interference (ISI) to occur. Based on measurements held in the intersection of two corridors under non-line-of-sight (NLOS) scenario without reflector, we noticed that diffracted waves from the propagation environment were present. However, a very high loss of received signal power is noticed. In the meantime, it is found that the presence of adequate passive reflectors, strategically located, will help minimize delay spread and maximize the received energy level in NLOS scenarios. Finally, the results achieved using a reflector can be used to help design 60 GHz medium range NLOS backhaul.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116845721","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175462
H. Spisser, A.-S. Grimault-Jacquin, N. Zerounian, A. Aassime, L. Cao, F. Boone, H. Maher, Y. Cordier, F. Aniel
We investigate plasmonic THz detectors on Al-GaN/GaN hetero-structures for different configurations of the grating (symmetric or asymmetric pattern) and spatial modulation of the electron sheet density. The absorption spectra have been calculated for the different configurations and a few detectors have freshly been fabricated and the transmission and reflection spectra have been measured for one of them. It appears that these detectors could be the ideal candidate for an on-chip, electrically tunable, room-temperature operating and cheap THz detector.
{"title":"AlGaN/GaN THz resonant plasmonic detectors with symmetric and asymmetric patterns deposited above homogeneous and inhomogeneous 2DEG","authors":"H. Spisser, A.-S. Grimault-Jacquin, N. Zerounian, A. Aassime, L. Cao, F. Boone, H. Maher, Y. Cordier, F. Aniel","doi":"10.1109/GSMM.2015.7175462","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175462","url":null,"abstract":"We investigate plasmonic THz detectors on Al-GaN/GaN hetero-structures for different configurations of the grating (symmetric or asymmetric pattern) and spatial modulation of the electron sheet density. The absorption spectra have been calculated for the different configurations and a few detectors have freshly been fabricated and the transmission and reflection spectra have been measured for one of them. It appears that these detectors could be the ideal candidate for an on-chip, electrically tunable, room-temperature operating and cheap THz detector.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130107605","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175446
H. Attia, M. S. Sorkherizi, A. Kishk
A simple and low-cost solution to reduce the coupling between two slot antennas working at 60 GHz is presented. The slot antennas formed in the top plate of printed ridge gap waveguide (PRGW) structure to avoid the losses associated with conventional feeding mechanisms. The coupling reduction of more than 10 dB is achieved by removing a part of the top metallic plate of the PRGW between the two slots. Coupling reduction is achieved while maintaining a small distance of half free-space wavelength between the two slots. Also, the coupling reduction covers nearly all the 12% impedance bandwidth of the slot antennas.
{"title":"60 GHz PRGW slot antenna array with small separation and low mutual coupling","authors":"H. Attia, M. S. Sorkherizi, A. Kishk","doi":"10.1109/GSMM.2015.7175446","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175446","url":null,"abstract":"A simple and low-cost solution to reduce the coupling between two slot antennas working at 60 GHz is presented. The slot antennas formed in the top plate of printed ridge gap waveguide (PRGW) structure to avoid the losses associated with conventional feeding mechanisms. The coupling reduction of more than 10 dB is achieved by removing a part of the top metallic plate of the PRGW between the two slots. Coupling reduction is achieved while maintaining a small distance of half free-space wavelength between the two slots. Also, the coupling reduction covers nearly all the 12% impedance bandwidth of the slot antennas.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131444077","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175468
A. Ghiotto, A. Doghri, F. Parment, T. Djerafi, T. Vuong, K. Wu
Emerging millimeter-wave frequency applications require high performance, low-cost and compact devices and circuits. This is the reason why the Substrate Integrated Waveguide (SIW) technology, which combines some advantages of planar circuits and metallic waveguides, has focused a lot of attention in recent years. However, not all three-dimensional metallic waveguide devices and circuit are integrable in planar form. In its first section, this paper reviews recently proposed three-dimensional SIW devices that are taking advantages of the third-dimension to achieve either more compact or multidimensional circuits at millimeter wave frequencies. Also, in a second section, special interest is oriented to recent development of air-filled SIW based on low-cost multilayer printed circuit board (PCB) for high performance millimeter-wave substrate integrated circuits and systems.
{"title":"Three-dimensional SIW and high-performance air-filled SIW for millimeter-wave substrate integrated circuits and systems","authors":"A. Ghiotto, A. Doghri, F. Parment, T. Djerafi, T. Vuong, K. Wu","doi":"10.1109/GSMM.2015.7175468","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175468","url":null,"abstract":"Emerging millimeter-wave frequency applications require high performance, low-cost and compact devices and circuits. This is the reason why the Substrate Integrated Waveguide (SIW) technology, which combines some advantages of planar circuits and metallic waveguides, has focused a lot of attention in recent years. However, not all three-dimensional metallic waveguide devices and circuit are integrable in planar form. In its first section, this paper reviews recently proposed three-dimensional SIW devices that are taking advantages of the third-dimension to achieve either more compact or multidimensional circuits at millimeter wave frequencies. Also, in a second section, special interest is oriented to recent development of air-filled SIW based on low-cost multilayer printed circuit board (PCB) for high performance millimeter-wave substrate integrated circuits and systems.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133447888","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175447
B. Sahukar, H. Nie, Z. Chen
In recent years, millimeter waves attract significance attention due to its global availability of massive spectral resources. Many technologies have been developed using millimeter waves for various applications. Among them, wideband impulse radio technology offers several advantages compared to traditional narrowband systems. In this paper, we propose and present the implementation of an impulse radio Differential Code Shift Reference transceiver system for millimeter wave applications. We present the system architecture and experimental results that demonstrates the feasibility of the proposed system.
{"title":"A proposal for new millimeter wave wideband transceiver system — The code shifted reference impulse radio system","authors":"B. Sahukar, H. Nie, Z. Chen","doi":"10.1109/GSMM.2015.7175447","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175447","url":null,"abstract":"In recent years, millimeter waves attract significance attention due to its global availability of massive spectral resources. Many technologies have been developed using millimeter waves for various applications. Among them, wideband impulse radio technology offers several advantages compared to traditional narrowband systems. In this paper, we propose and present the implementation of an impulse radio Differential Code Shift Reference transceiver system for millimeter wave applications. We present the system architecture and experimental results that demonstrates the feasibility of the proposed system.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134116856","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175106
T. Nguyen, Dong-Chul Park, I. Park
A single layer and single feed high gain Fabry-Perot cavity type antenna is presented in this paper. The antenna is designed to operate at around 22 GHz so that it can be used for K-band applications. An open-ended leaky-wave slit dipole fed by a coplanar waveguide is printed on one side of the substrate whereas a frequency selective surface made of a circular hole array is defined on another side of the substrate; thus forms a substrate-integrated Fabry-Perot cavity. The simulation results show that the proposed feeding structure exhibits a wide impedance bandwidth characteristic and effectively excites the resonance of the substrate cavity simultaneously. After optimization, the antenna is capable of having an impedance bandwidth (VSWR≤2) of about 8%, a maximum gain of about 14 dBi, and a 3-dB gain bandwidth of approximately 1.5% at a resonance frequency of 21.7 GHz.
{"title":"A single layer high gain Fabry-Perot cavity antenna","authors":"T. Nguyen, Dong-Chul Park, I. Park","doi":"10.1109/GSMM.2015.7175106","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175106","url":null,"abstract":"A single layer and single feed high gain Fabry-Perot cavity type antenna is presented in this paper. The antenna is designed to operate at around 22 GHz so that it can be used for K-band applications. An open-ended leaky-wave slit dipole fed by a coplanar waveguide is printed on one side of the substrate whereas a frequency selective surface made of a circular hole array is defined on another side of the substrate; thus forms a substrate-integrated Fabry-Perot cavity. The simulation results show that the proposed feeding structure exhibits a wide impedance bandwidth characteristic and effectively excites the resonance of the substrate cavity simultaneously. After optimization, the antenna is capable of having an impedance bandwidth (VSWR≤2) of about 8%, a maximum gain of about 14 dBi, and a 3-dB gain bandwidth of approximately 1.5% at a resonance frequency of 21.7 GHz.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133909955","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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