Pub Date : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8712848
Behzad Koosha, H. Helgert, R. Karimian
In this paper, we propose a reciprocal architecture to integrate satellite-based ground gateways with 5G eNodeBs capable of transmitting Terabit/s of data throughput in remote locations. Taking into consideration the need for heterogeneous and reliable satellite terrestrial communication, we propose a gateway connection for backhauling traffic through terrestrial base stations. These satellite gateway feeder links will significantly improve overall throughput by utilizing feeder links in parallel with minimal ground network topology alternations. The proposed solution will provide real-time services to LEO, MEO & GEO satellites in connection with 5G-enabled eNodeBs. This will include managed broadband services, gateway services, monitoring, tracking and control services in a terrestrial backhaul connection fashion.
{"title":"A Reciprocal Terrestrial Backhaul Architecture for the Integration of 5G in HTS Networks","authors":"Behzad Koosha, H. Helgert, R. Karimian","doi":"10.23919/USNC-URSI-NRSM.2019.8712848","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8712848","url":null,"abstract":"In this paper, we propose a reciprocal architecture to integrate satellite-based ground gateways with 5G eNodeBs capable of transmitting Terabit/s of data throughput in remote locations. Taking into consideration the need for heterogeneous and reliable satellite terrestrial communication, we propose a gateway connection for backhauling traffic through terrestrial base stations. These satellite gateway feeder links will significantly improve overall throughput by utilizing feeder links in parallel with minimal ground network topology alternations. The proposed solution will provide real-time services to LEO, MEO & GEO satellites in connection with 5G-enabled eNodeBs. This will include managed broadband services, gateway services, monitoring, tracking and control services in a terrestrial backhaul connection fashion.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"30 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124655916","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8713004
A. Desai, P. Nayeri
A new design for a wideband dual-polarized aperture-coupled patch antenna with dumbbell shaped coupling slots is presented. The printed antenna consists of two stacked patches and an aperture slotted ground plane which is excited using a microstrip line feed. A two-slot dual polarized antenna with a return loss bandwidth of 505 MHz is introduced using the proposed configuration. The proposed antenna is designed for 2.45 GHz and achieves stable and desirable radiation characteristics across the band.
{"title":"A Wideband Dual-Polarized Stacked Microstrip Patch Antenna with a Dumbbell Shaped Aperture","authors":"A. Desai, P. Nayeri","doi":"10.23919/USNC-URSI-NRSM.2019.8713004","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8713004","url":null,"abstract":"A new design for a wideband dual-polarized aperture-coupled patch antenna with dumbbell shaped coupling slots is presented. The printed antenna consists of two stacked patches and an aperture slotted ground plane which is excited using a microstrip line feed. A two-slot dual polarized antenna with a return loss bandwidth of 505 MHz is introduced using the proposed configuration. The proposed antenna is designed for 2.45 GHz and achieves stable and desirable radiation characteristics across the band.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128793053","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8712984
Ahmed Kord, Andrea Alù
In this paper, magnet-free circulators based on spatiotemporal modulation of three-port resonant junctions are demonstrated. Optimal single-ended implementations based on series or parallel LC tanks connected in a wye or a delta topology, respectively, are developed. Also differential implementations based on combining two single-ended circuits in either a voltage-or a current-mode architecture, resulting in pseudo-linear time-invariant devices with enhanced performance, are presented. Moreover, CMOS integrated and MEMS implementations, suitable for low-cost and large-scale production, are presented. Also, broadband implementations based on combining a narrowband junction with conventional bandpass filters are developed. The proposed circuits are all validated with theoretical, simulated and measured results, with unprecedented performance nearly in all metrics in comparison to the current state of the art.
{"title":"Magnet-Free Circulators Based on Linear Time-Varying Circuits","authors":"Ahmed Kord, Andrea Alù","doi":"10.23919/USNC-URSI-NRSM.2019.8712984","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8712984","url":null,"abstract":"In this paper, magnet-free circulators based on spatiotemporal modulation of three-port resonant junctions are demonstrated. Optimal single-ended implementations based on series or parallel LC tanks connected in a wye or a delta topology, respectively, are developed. Also differential implementations based on combining two single-ended circuits in either a voltage-or a current-mode architecture, resulting in pseudo-linear time-invariant devices with enhanced performance, are presented. Moreover, CMOS integrated and MEMS implementations, suitable for low-cost and large-scale production, are presented. Also, broadband implementations based on combining a narrowband junction with conventional bandpass filters are developed. The proposed circuits are all validated with theoretical, simulated and measured results, with unprecedented performance nearly in all metrics in comparison to the current state of the art.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124106948","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8713120
C. Carrano, C. Rino
We investigate the Irregularity Parameter Estimation (IPE) technique for characterizing ionospheric irregularities using satellite beacon observations of amplitude and phase scintillation. The approach is to fit either the Doppler spectrum or the intensity spectrum of scintillation observations with theoretical fitting functions derived for the case of propagation through a thin phase changing screen. Fitting the Doppler spectrum yields estimates for the phase spectral strength, spectral index, and effective scan velocity. Fitting the intensity spectrum provides estimates for these parameters, and additionally the Fresnel scale. We find that fitting the intensity spectrum tends to provide more robust and accurate results than fitting the Doppler spectrum. Nevertheless, fitting the Doppler spectrum is simpler and generally produces acceptable estimates of phase spectral strength and spectral index.
{"title":"Irregularity Parameter Estimation for Interpretation of Scintillation Doppler and Intensity Spectra","authors":"C. Carrano, C. Rino","doi":"10.23919/USNC-URSI-NRSM.2019.8713120","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8713120","url":null,"abstract":"We investigate the Irregularity Parameter Estimation (IPE) technique for characterizing ionospheric irregularities using satellite beacon observations of amplitude and phase scintillation. The approach is to fit either the Doppler spectrum or the intensity spectrum of scintillation observations with theoretical fitting functions derived for the case of propagation through a thin phase changing screen. Fitting the Doppler spectrum yields estimates for the phase spectral strength, spectral index, and effective scan velocity. Fitting the intensity spectrum provides estimates for these parameters, and additionally the Fresnel scale. We find that fitting the intensity spectrum tends to provide more robust and accurate results than fitting the Doppler spectrum. Nevertheless, fitting the Doppler spectrum is simpler and generally produces acceptable estimates of phase spectral strength and spectral index.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127342501","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8712887
Pai-Yen Chen, D. Erricolo, A. Shamim, H. Bağcı, Yue Li
Dispersion and cutoff frequency are essential parameters for microwave waveguides and their versatile applications in communication and sensing. In this work, we propose the concept of substrate-integrated impedance surface (SIIS) that enables arbitrary control of dispersion in closed-shape waveguides and demonstrate that a substrate-integrated waveguide (SIW) loaded with a capacitive SIIS (e.g., an array of blind vias) does not have only a reduced cutoff frequency, but also exhibits effects of slow-wave propagation and field localization. The proposed SIIS technique may have broad relevance beyond miniaturization of waveguide components, as it may also open exciting prospects for ultrasensitive microwave sensing and enhancement of nonlinear properties in active waveguides.
{"title":"Dispersion and Field Control in a Metasurface-Implanted Waveguide","authors":"Pai-Yen Chen, D. Erricolo, A. Shamim, H. Bağcı, Yue Li","doi":"10.23919/USNC-URSI-NRSM.2019.8712887","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8712887","url":null,"abstract":"Dispersion and cutoff frequency are essential parameters for microwave waveguides and their versatile applications in communication and sensing. In this work, we propose the concept of substrate-integrated impedance surface (SIIS) that enables arbitrary control of dispersion in closed-shape waveguides and demonstrate that a substrate-integrated waveguide (SIW) loaded with a capacitive SIIS (e.g., an array of blind vias) does not have only a reduced cutoff frequency, but also exhibits effects of slow-wave propagation and field localization. The proposed SIIS technique may have broad relevance beyond miniaturization of waveguide components, as it may also open exciting prospects for ultrasensitive microwave sensing and enhancement of nonlinear properties in active waveguides.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114832791","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8713157
D. Gilbert, Yangqing Liu, D. Erricolo
We designed and built a low budget planar positioning system for antennas for applications such as through-wall imaging. Key constraints were: a budget under $700, minimize vibrations due to moving parts, reliability, accuracy, size, producibility, and simplicity. The positioning system will be referred to as the structure. The structure consists of a horizontal and a vertical axis, which is fabricated from aluminum extrusions as main supports. Analysis shows that for this budget aluminum is an excellent option for the physical build, because of its light weight, durability, and low cost.
{"title":"A Planar Positioning System for Antennas","authors":"D. Gilbert, Yangqing Liu, D. Erricolo","doi":"10.23919/USNC-URSI-NRSM.2019.8713157","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8713157","url":null,"abstract":"We designed and built a low budget planar positioning system for antennas for applications such as through-wall imaging. Key constraints were: a budget under $700, minimize vibrations due to moving parts, reliability, accuracy, size, producibility, and simplicity. The positioning system will be referred to as the structure. The structure consists of a horizontal and a vertical axis, which is fabricated from aluminum extrusions as main supports. Analysis shows that for this budget aluminum is an excellent option for the physical build, because of its light weight, durability, and low cost.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124184532","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8713040
R. Weikle, Linli Xie, S. Nadri, M. Jafari, Christopher M. Moore, Naser Alijabbari, M. Cyberey, N. S. Barker, A. Lichtenberger, Charles L. Brown
This paper reports on the design and fabrication of quasi-vertical Schottky diodes for submillimeter-wave applications. Use of the diodes to implement an integrated 160 GHz frequency quadrupler are described.
{"title":"Submillimeter-Wave Schottky Diodes based on Heterogeneous Integration of GaAs onto Silicon","authors":"R. Weikle, Linli Xie, S. Nadri, M. Jafari, Christopher M. Moore, Naser Alijabbari, M. Cyberey, N. S. Barker, A. Lichtenberger, Charles L. Brown","doi":"10.23919/USNC-URSI-NRSM.2019.8713040","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8713040","url":null,"abstract":"This paper reports on the design and fabrication of quasi-vertical Schottky diodes for submillimeter-wave applications. Use of the diodes to implement an integrated 160 GHz frequency quadrupler are described.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126363964","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8712925
Daniel Gaydos, P. Nayeri, R. Haupt
Digital beamforming (DBF) is the holy grail of antenna array technology. However, very few DBF arrays have been demonstrated due to the high cost of implementation. Here we report on a cost-effective platform for DBF using a software-defined radio array and present experimental results on interference cancellation using the DBF platform. We transmitted digital data modulated with 4-QAM from a single-element transmitter to the 4-element DBF array while a single-element interferer disrupted the transmission. Digital beamforming interference cancellation was then implemented with three different algorithms, namely, least mean squares, sample matrix inversion, and recursive least squares. The bit error rates in each case are compared for several interference power levels. The results indicate that all adaptive methods provide significant improvements over unit weights, with sample matrix inversion outperforming recursive least squares and recursive least squares outperforming least mean squares.
{"title":"Experimental Comparison of Digital Beamforming Interference Cancellation Algorithms using a Software Defined Radio Array","authors":"Daniel Gaydos, P. Nayeri, R. Haupt","doi":"10.23919/USNC-URSI-NRSM.2019.8712925","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8712925","url":null,"abstract":"Digital beamforming (DBF) is the holy grail of antenna array technology. However, very few DBF arrays have been demonstrated due to the high cost of implementation. Here we report on a cost-effective platform for DBF using a software-defined radio array and present experimental results on interference cancellation using the DBF platform. We transmitted digital data modulated with 4-QAM from a single-element transmitter to the 4-element DBF array while a single-element interferer disrupted the transmission. Digital beamforming interference cancellation was then implemented with three different algorithms, namely, least mean squares, sample matrix inversion, and recursive least squares. The bit error rates in each case are compared for several interference power levels. The results indicate that all adaptive methods provide significant improvements over unit weights, with sample matrix inversion outperforming recursive least squares and recursive least squares outperforming least mean squares.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"379 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124725927","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8712888
Hanfeng Wang, S. H. Hesari, S. Shamsir, S. Islam
In a typical wireless transmission of medical data from implantable sensors devices Medical Implant Communication System (MICS) protocol with low-power, short-range (~2m), high-data-rate, 401–406 MHz communication network scheme is employed. This paper presents a digital voltage-controlled oscillator (DVCO) featuring low-power consumption, wide tuning range, and low phase noise suitable for use in wireless transmission of biomedical data employing MICS protocol. The circuit is realized in a 0.13-μm standard CMOS process and consumes less than 600-μW of power, achieves more than 15-MHz/V of analog tuning gain, 370-mV of voltage swing and -106 dBc/Hz of phase noise. Simulation and measurement results demonstrate potential application of the circuit in biomedical sensors system.
{"title":"MICS Band Digital Voltage-Controlled Oscillator (DVCO) for Low-Power Biomedical Data Transmission","authors":"Hanfeng Wang, S. H. Hesari, S. Shamsir, S. Islam","doi":"10.23919/USNC-URSI-NRSM.2019.8712888","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8712888","url":null,"abstract":"In a typical wireless transmission of medical data from implantable sensors devices Medical Implant Communication System (MICS) protocol with low-power, short-range (~2m), high-data-rate, 401–406 MHz communication network scheme is employed. This paper presents a digital voltage-controlled oscillator (DVCO) featuring low-power consumption, wide tuning range, and low phase noise suitable for use in wireless transmission of biomedical data employing MICS protocol. The circuit is realized in a 0.13-μm standard CMOS process and consumes less than 600-μW of power, achieves more than 15-MHz/V of analog tuning gain, 370-mV of voltage swing and -106 dBc/Hz of phase noise. Simulation and measurement results demonstrate potential application of the circuit in biomedical sensors system.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133496495","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 : 2019-01-01DOI: 10.23919/USNC-URSI-NRSM.2019.8713160
G. Lavigne, C. Caloz
A crossanisotropic metasurface placed at the interface between two media is studied. Crossanisotropic metasurfaces are a subset of bianisotropic metasurfaces, where only the cross-coupling (electric-to-magnetic and magnetic-to-electric) susceptibility components are non-zero. It is shown that such metasurface coating can be engineered to achieve matching at arbitrary angles of incidence and, more generally, to manipulate the conventional Fresnel (reflection and transmission) coefficient functions.
{"title":"Manipulation of Fresnel Coefficients using Crossanisotropic Metasurface Coating","authors":"G. Lavigne, C. Caloz","doi":"10.23919/USNC-URSI-NRSM.2019.8713160","DOIUrl":"https://doi.org/10.23919/USNC-URSI-NRSM.2019.8713160","url":null,"abstract":"A crossanisotropic metasurface placed at the interface between two media is studied. Crossanisotropic metasurfaces are a subset of bianisotropic metasurfaces, where only the cross-coupling (electric-to-magnetic and magnetic-to-electric) susceptibility components are non-zero. It is shown that such metasurface coating can be engineered to achieve matching at arbitrary angles of incidence and, more generally, to manipulate the conventional Fresnel (reflection and transmission) coefficient functions.","PeriodicalId":142320,"journal":{"name":"2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132103136","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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