Academic literature on the topic 'Conformal 3D phased arrays'

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Journal articles on the topic "Conformal 3D phased arrays"

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Comisso, Massimiliano, and Roberto Vescovo. "Fast 3D Pattern Synthesis with Polarization and Dynamic Range Ratio Control for Conformal Antenna Arrays." International Journal of Antennas and Propagation 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/106741.

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This paper proposes an iterative algorithm for the 3D synthesis of the electric far-field pattern of a conformal antenna array in the presence of requirements on both the polarization and the dynamic range ratio (DRR) of the excitations. Thanks to the use of selectable weights, the algorithm allows a versatile control of the DRR and of the polarization in a given angular region and requires a low CPU time to provide the array excitations. Furthermore, a modified version of the algorithm is developed to enable the optimization of the polarization state by phase-only control. Numerical results are presented to verify the usefulness of the proposed approach for the joint pattern and polarization synthesis of conformal arrays with reduced or even unitary DRR.
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Jiang, Xing, Ming‐cong Xie, Jia Wei, Kun‐peng Wang, and Lin Peng. "3D‐MIMO beamforming realised by AQPSO algorithm for cylindrical conformal phased array." IET Microwaves, Antennas & Propagation 13, no. 15 (2019): 2701–5. http://dx.doi.org/10.1049/iet-map.2019.0060.

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Comisso, Massimiliano, Gabriele Palese, Fulvio Babich, Francesca Vatta, and Giulia Buttazzoni. "3D Multi-Beam and Null Synthesis by Phase-Only Control for 5G Antenna Arrays." Electronics 8, no. 6 (2019): 656. http://dx.doi.org/10.3390/electronics8060656.

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This paper presents an iterative algorithm for the synthesis of the three-dimensional (3D) radiation pattern generated by an antenna array of arbitrary geometry. The algorithm is conceived to operate in fifth-generation (5G) millimeter-wave scenarios, thus enabling the support of multi-user mobile streaming and massive peer-to-peer communications, which require the possibility to synthesize 3D patterns with wide null regions and multiple main beams. Moreover, the proposed solution adopts a phase-only control approach to reduce the complexity of the feeding network and is characterized by a low computational cost, thanks to the closed-form expressions derived to estimate the phase of each element at the generic iteration. These expressions are obtained from the minimization of a weighted cost function that includes all the necessary constraints. To finally check its versatility in a 5G environment, the developed method is validated by numerical examples involving planar and conformal arrays, considering desired patterns with different numbers of main beams and nulls.
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Zainud-Deen, Saber Helmy, Doaa Mohammed Zaki Azzam, and Hend Abd El-Azem Malhat. "2D/3D Shaped Radiation Patterns of Sunflower and Conformal Antenna Arrays Using Phase Synthesis." Wireless Personal Communications 115, no. 1 (2020): 877–91. http://dx.doi.org/10.1007/s11277-020-07602-w.

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Buttazzoni, Giulia, and Roberto Vescovo. "An Efficient and Versatile Technique for the Synthesis of 3D Copolar and Crosspolar Patterns of Phase-Only Reconfigurable Conformal Arrays With DRR and Near-Field Control." IEEE Transactions on Antennas and Propagation 62, no. 4 (2014): 1640–51. http://dx.doi.org/10.1109/tap.2014.2308319.

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Long, N. R. W. "Correcting phased arrays for multipath or for conformal topography." Electronics Letters 21, no. 15 (1985): 639. http://dx.doi.org/10.1049/el:19850453.

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Li, Wen Tao, Yong Qiang Hei, and Xiao Wei Shi. "Synthesis of Conformal Phased Antenna Arrays With A Novel Multiobjective Invasive Weed Optimization Algorithm." Frequenz 72, no. 5-6 (2018): 209–19. http://dx.doi.org/10.1515/freq-2017-0012.

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Abstract By virtue of the excellent aerodynamic performances, conformal phased arrays have been attracting considerable attention. However, for the synthesis of patterns with low/ultra-low sidelobes of the conventional conformal arrays, the obtained dynamic range ratios of amplitude excitations could be quite high, which results in stringent requirements on various error tolerances for practical implementation. Time-modulated array (TMA) has the advantages of low sidelobe and reduced dynamic range ratio requirement of amplitude excitations. This paper takes full advantages of conformal antenna arrays and time-modulated arrays. The active-element-pattern, including element mutual coupling and platform effects, is employed in the whole design process. To optimize the pulse durations and the switch-on instants of the time-modulated elements, multiobjective invasive weed optimization (MOIWO) algorithm based on the nondominated sorting of the solutions is proposed. A S-band 8-element cylindrical conformal array is designed and a S-band 16-element cylindrical-parabolic conformal array is constructed and tested at two different steering angles.
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Galati, Gaspare, Paola Carta, Mauro Leonardi, Francesco Madia, Rossella Stallone, and Stefania Franco. "The d-Radar: a bistatic system based on conformal arrays." International Journal of Microwave and Wireless Technologies 9, no. 3 (2016): 551–65. http://dx.doi.org/10.1017/s175907871600026x.

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Multifunction radars based on active phased arrays are well known and widely studied systems. The concepts of bistatic architecture, conformal array and digital beam forming (DBF) are combined in this paper to define a novel multifunction radar for point defense. The conical shape of the antenna overcomes the significant limitations in the azimuth coverage of 360° of fixed-faces phased arrays due to the beam scanning up to 45°. The usage of separate transmit/receive arrays and the DBF technique adds the operational flexibility and the possibility of multiple simultaneous functions, with an optimal time-energy resources exploitation. After a short description of its technological demonstrator, some significant design trade-off, and operating aspects of the proposed architecture, called d-Radar, are described, showing the main differences with respect to the classical, four faces, and phased-array multifunction radar architecture. It is described how the operating modes can be made more and more similar to a “staring” or “ubiquitous” radar permitting an instantaneous detection and location of short-range, low-elevation targets for sea and ground operations. Finally, some remarks about the resources management and scheduling are shown with the results from a case of study.
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Salucci, Marco, Giacomo Oliveri, Nicola Anselmi, and Andrea Massa. "Material-by-Design Synthesis of Conformal Miniaturized Linear Phased Arrays." IEEE Access 6 (2018): 26367–82. http://dx.doi.org/10.1109/access.2018.2833199.

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Yang, Kai, Zhiqin Zhao, Zaiping Nie, Jun Ouyang, and Qing Huo Liu. "Synthesis of Conformal Phased Arrays With Embedded Element Pattern Decomposition." IEEE Transactions on Antennas and Propagation 59, no. 8 (2011): 2882–88. http://dx.doi.org/10.1109/tap.2011.2158954.

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Dissertations / Theses on the topic "Conformal 3D phased arrays"

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Fourtinon, L. "3D conformal antennas for radar applications." Thesis, Cranfield University, 2018. http://dspace.lib.cranfield.ac.uk/handle/1826/13359.

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Embedded below the radome of a missile, existing RF-seekers use a mechanical rotating antenna to steer the radiating beam in the direction of a target. Latest research is looking at replacing the mechanical antenna components of the RF seeker with a novel 3D conformal antenna array that can steer the beam electronically. 3D antennas may oer signicant advantages, such as faster beamsteering and better coverage but, at the same time, introduce new challenges resulting from a much more complex radiation pattern than that of 2D antennas. Thanks to the mechanical system removal, the new RF-seeker has a wider available space for the design of a new 3D conformal antenna. To take best benets of this space, dierent array shapes are studied, hence the impact of the position, orientation and conformation of the elements is assessed on the antenna performance in terms of directivity, ellipticity and polarisation. To facilitate this study of 3D conformal arrays, a Matlab program has been developed to compute the polarisation pattern of a given array in all directions. One of the task of the RF-seeker consists in estimating the position of a given target to correct the missile trajectory accordingly. Thus, the impact of the array shape on the error between the measured direction of arrival of the target echo and its true value is addressed. The Cramer-Rao lower bound is used to evaluate the theoretical minimum error. The model assumes that each element receives independently and allows therefore to analyse the potential of active 3D conformal arrays. Finally, the phase monopulse estimator is studied for 3D conformal arrays whose quadrants do not have the same characteristics. A new estimator more adapted to non-identical quadrants is also proposed.
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Fourtinon, Luc. "3D conformal antennas for radar applications." Thesis, Ecole nationale supérieure Mines-Télécom Atlantique Bretagne Pays de la Loire, 2017. http://www.theses.fr/2017IMTA0060/document.

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Embarqué sous le radôme du missile, les autodirecteurs existants utilisent une rotation mécanique du plan d’antenne pour balayer le faisceau en direction d’une cible. Les recherches actuelles examinent le remplacement des composantes mécaniques de rotation de l’antenne par un nouveau réseau d’antennes 3D conformes à balayage électronique. Les antennes 3D conformes pourraient offrir des avantages significatifs, tels qu’un balayage plus rapide et une meilleure couverture angulaire mais qui pourraient aussi offrir de nouveaux challenges résultant d’un diagramme de rayonnement plus complexes en 3D qu’en 2D. Le nouvel autodirecteur s’affranchit du système mécanique de rotation ce qui libère de l’espace pour le design d’une nouvelle antenne 3D conforme. Pour tirer le meilleur parti de cet espace, différentes formes de réseaux sont étudiées, ainsi l’impact de la position, de l’orientation et de la conformation des éléments est établi sur les performances de l’antenne, en termes de directivité, ellipticité et de polarisation. Pour faciliter cette étude de réseaux 3D conformes, un programme Matlab a été développé, il permet de générer rapidement le diagramme de rayonnement en polarisation d’un réseau donné dans toutes les directions. L’une des tâches de l’autodirecteur consiste à estimer la position d’une cible donnée afin de corriger la trajectoire du missile. Ainsi, l’impact de la forme du réseau sur l’erreur entre la direction d’arrivée mesurée de l’écho de la cible et sa vraie valeur est analysé. La borne inférieure de Cramer-Rao est utilisée pour calculer l’erreur minimum théorique. Ce modèle suppose que chaque élément est alimenté séparément et permet ainsi d’évaluer le potentiel des réseaux 3D conformes actifs.Finalement, l’estimateur du monopulse en phase est étudié pour des réseaux 3D conformes dont les quadrants n’auraient pas les mêmes caractéristiques. Un nouvel estimateur, plus adapté à des quadrants non identiques, est aussi proposé<br>Embedded below the radome of a missile, existing RF-seekers use a mechanical rotating antenna to steer the radiating beam in the direction of a target. Latest research is looking at replacing the mechanical antenna components of the RF-seeker with a novel 3D conformal antenna array that can steer the beam electronically. 3D antennas may offer significant advantages, such as faster beam steering and better coverage but, at the same time, introduce new challenges resulting from a much more complex radiation pattern than that of 2D antennas. Thanks to the mechanical system removal, the new RF-seeker has a wider available space for the design of a new 3D conformal antenna. To take best benefits of this space, different array shapes are studied, hence the impact of the position, orientation and conformation of the elements is assessed on the antenna performance in terms of directivity, ellipticity and polarisation. To facilitate this study of 3D conformal arrays, a Matlab program has been developed to compute the polarisation pattern of a given array in all directions. One of the task of the RF-seeker consists in estimating the position of a given target to correct the missile trajectory accordingly. Thus, the impact of the array shape on the error between the measured direction of arrival of the target echo and its true value is addressed. The Cramer-Rao lower bound is used to evaluate the theoretical minimum error. The model assumes that each element receives independently and allows therefore to analyse the potential of active 3D conformal arrays. Finally, the phase monopulse estimator is studied for 3Dconformal arrays whose quadrants do not have the same characteristics. A new estimator more adapted to non-identical quadrants is also proposed
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Kumar, Sharath. "Investigation of a Phased Array of Circular Microstrip Patch Elements Conformal to a Paraboloidal Surface." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/35464.

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This thesis investigates the performance of a phased array of antenna elements conforming to a paraboloidal surface. We hypothesize that such a conformal phased array would have performance comparable to that of a correspondingly sized planar array. The performance of a paraboloidal array of antenna elements was simulated using an array program, and the resulting gains, side-lobe levels, and half-power beamwidths compared to those of a similarly sized planar array. Furthermore, we propose a beam-forming feed network for this paraboloidal phased array, and discuss the influence that coupling between the elements could have on the array performance. Lastly, we propose that such an array be used in conjunction with a parabolic reflector antenna to form a versatile hybrid antenna with several potential applications.<br>Master of Science
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Janpugdee, Panuwat. "A UTD ray description for the collective fields radiated by large antenna phased arrays on a smooth convex surface." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1150381898.

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Book chapters on the topic "Conformal 3D phased arrays"

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"Arrays: Linear, Planar, 3D and Conformal." In Orthogonal Methods for Array Synthesis. John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470028548.ch2.

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Conference papers on the topic "Conformal 3D phased arrays"

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Fenn, Alan J., David J. Pippin, Caroline M. Lamb, Francis G. Willwerth, Herbert M. Aumann, and Jonathan P. Doane. "3D printed conformal array antenna: Simulations and measurements." In 2016 IEEE International Symposium on Phased Array Systems and Technology (PAST). IEEE, 2016. http://dx.doi.org/10.1109/array.2016.7832591.

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Ferendeci, Altan M. "Fractal antennas for conformal phased arrays." In NAECON 2009 - IEEE National Aerospace and Electronics Conference. IEEE, 2009. http://dx.doi.org/10.1109/naecon.2009.5426616.

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Chatterjee, Deb. "Numerical Modeling of Conformal Phased Arrays on Tactical Systems." In MILCOM 2006. IEEE, 2006. http://dx.doi.org/10.1109/milcom.2006.302359.

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Fikes, Austin C., Amirreza Safaripour, Florian Bohn, Behrooz Abiri, and Ali Hajimiri. "Flexible, Conformal Phased Arrays with Dynamic Array Shape Self-Calibration." In 2019 IEEE/MTT-S International Microwave Symposium - IMS 2019. IEEE, 2019. http://dx.doi.org/10.1109/mwsym.2019.8701107.

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Baggen, L., M. Bottcher, and M. Eube. "3D-Butler matrix topologies for phased arrays." In 2007 International Conference on Electromagnetics in Advanced Applications. IEEE, 2007. http://dx.doi.org/10.1109/iceaa.2007.4387354.

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Capozzoli, A., C. Curcio, G. D'Elia, A. Liseno, and P. Vinetti. "Fast analysis of conformal aperiodic arrays on CPUs and GPUs." In 2010 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2010). IEEE, 2010. http://dx.doi.org/10.1109/array.2010.5613304.

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Augustin, D., R. Staraj, O. Benevello, and E. Cambiaggio. "Microstrip Antennas Printed on Inclined Planes to Constitute Original Conformal Phased Arrays." In 24th European Microwave Conference, 1994. IEEE, 1994. http://dx.doi.org/10.1109/euma.1994.337485.

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Bhowmik, Lal Mohan, Craig Armiento, Alkim Akyurtlu, William Miniscalco, Jagannath Chirravuri, and Christopher McCarroll. "Design and analysis of conformal ku-band microstrip patch antenna arrays." In 2013 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2013). IEEE, 2013. http://dx.doi.org/10.1109/array.2013.6731932.

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Zhou, Jerry, Jie Sun, Ami Yaacobi, Christopher V. Poulton, and Michael R. Watts. "Design of 3D Hologram Emitting Optical Phased Arrays." In Integrated Photonics Research, Silicon and Nanophotonics. OSA, 2015. http://dx.doi.org/10.1364/iprsn.2015.it4a.7.

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Chatterjee, D., C. J. Reddy, and R. J. Burkholder. "Conformal arrays on variable curvature surfaces: An assessment of mutual coupling analysis." In 2013 IEEE International Symposium on Phased Array Systems and Technology (ARRAY 2013). IEEE, 2013. http://dx.doi.org/10.1109/array.2013.6731933.

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