Relevant bibliographies by topics / Thin film antennas

Academic literature on the topic 'Thin film antennas'

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Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Thin film antennas"

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Zhou, K. P., Y. T. Niu, W. N. Liu, Z. D. Wang, S. H. Guo, B. Li, Z. Wang, and X. K. Zhao. "Study and Analysis of a Multilayer Multipair Electret-Based Thin-Film Mechanical Antenna." International Journal of Antennas and Propagation 2021 (November 26, 2021): 1–18. http://dx.doi.org/10.1155/2021/3646425.

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Very low-frequency (VLF) and ultralow-frequency (ULF) electromagnetic waves have the advantage of high penetration and low propagation loss in wireless communication systems and are mainly used for underwater and underground communications, as well as for earthquake and lightning forecasting. At present, VLF and ULF antennas are mostly bulky and require hundreds of antennas and more to be set up, which is costly and inefficient. In this paper, we propose to generate VLF and ULF signals by rotating a multilayer multipair electret thin-film electret driven by an excitation device, which improves the problem of low radiation efficiency of VLF and ULF signals and the large size of conventional low-frequency transmitting antennas. Based on a multilayer, multipair electret film mechanical antenna, a magnetic field propagation model is developed, and the relationship between the magnetic flux density mode and the number of layers of electret films, as well as the relationship between the antenna emission frequency and the motor rotation frequency and the number of pairs of electret films, is analyzed. The selection of a suitable model for practical situations based on conditions such as antenna size and propagation distance is illustrated. The research work is of great importance for guiding the design of mechanical antennas and optimizing antenna structures.
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Lancaster, M. J., H. Y. Wang, and Jia-Sheng Hong. "Thin-film HTS planar antennas." IEEE Transactions on Appiled Superconductivity 8, no. 4 (1998): 168–77. http://dx.doi.org/10.1109/77.740682.

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Puchades, Ivan, Jamie E. Rossi, Cory D. Cress, Eric Naglich, and Brian J. Landi. "Carbon Nanotube Thin-Film Antennas." ACS Applied Materials & Interfaces 8, no. 32 (August 4, 2016): 20986–92. http://dx.doi.org/10.1021/acsami.6b05146.

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Tu, Cheng, Zhao-Qiang Chu, Benjamin Spetzler, Patrick Hayes, Cun-Zheng Dong, Xian-Feng Liang, Huai-Hao Chen, et al. "Mechanical-Resonance-Enhanced Thin-Film Magnetoelectric Heterostructures for Magnetometers, Mechanical Antennas, Tunable RF Inductors, and Filters." Materials 12, no. 14 (July 13, 2019): 2259. http://dx.doi.org/10.3390/ma12142259.

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The strong strain-mediated magnetoelectric (ME) coupling found in thin-film ME heterostructures has attracted an ever-increasing interest and enables realization of a great number of integrated multiferroic devices, such as magnetometers, mechanical antennas, RF tunable inductors and filters. This paper first reviews the thin-film characterization techniques for both piezoelectric and magnetostrictive thin films, which are crucial in determining the strength of the ME coupling. After that, the most recent progress on various integrated multiferroic devices based on thin-film ME heterostructures are presented. In particular, rapid development of thin-film ME magnetometers has been seen over the past few years. These ultra-sensitive magnetometers exhibit extremely low limit of detection (sub-pT/Hz1/2) for low-frequency AC magnetic fields, making them potential candidates for applications of medical diagnostics. Other devices reviewed in this paper include acoustically actuated nanomechanical ME antennas with miniaturized size by 1–2 orders compared to the conventional antenna; integrated RF tunable inductors with a wide operation frequency range; integrated RF tunable bandpass filter with dual H- and E-field tunability. All these integrated multiferroic devices are compact, lightweight, power-efficient, and potentially integrable with current complementary metal oxide semiconductor (CMOS) technology, showing great promise for applications in future biomedical, wireless communication, and reconfigurable electronic systems.
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Khan, Osama, Johannes Meyer, Klaus Baur, Saeed Arafat, and Christian Waldschmidt. "Aperture coupled stacked patch thin film antenna for automotive radar at 77 GHz." International Journal of Microwave and Wireless Technologies 11, no. 10 (June 10, 2019): 1061–68. http://dx.doi.org/10.1017/s1759078719000795.

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AbstractA hybrid thin film multilayer antenna for automotive radar is presented in this work. A 2 × 8 aperture coupled stacked patch antenna array is realized on a single layer printed circuit board (PCB) using a novel thin film-based approach. Using a compact 180° phase difference power divider, inter-element spacing in a 2×2 sub-array is reduced. Measurement results show a 19% (67.9–82.5 GHz) impedance bandwidth and a wideband broadside radiation pattern, with a maximum gain of 15.4 dBi realized gain at 72 GHz. The presented antenna compares favorably with other multilayer PCB antennas in terms of performance, with the advantage of simpler manufacturing and robust design. The antenna can be employed in mid-range automotive radar applications.
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Wang, H. Y., and M. J. Lancaster. "Aperture-coupled thin-film superconducting meander antennas." IEEE Transactions on Antennas and Propagation 47, no. 5 (May 1999): 829–36. http://dx.doi.org/10.1109/8.774137.

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Suzuki, N., K. Itoh, Y. Nagai, and O. Michikami. "Electromagnetically coupled superconductive thin-film small antennas." Physica B: Condensed Matter 194-196 (February 1994): 129–30. http://dx.doi.org/10.1016/0921-4526(94)90394-8.

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Patil, Deepak Rajaram, Ajeet Kumar, and Jungho Ryu. "Recent Progress in Devices Based on Magnetoelectric Composite Thin Films." Sensors 21, no. 23 (November 30, 2021): 8012. http://dx.doi.org/10.3390/s21238012.

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The strain-driven interfacial coupling between the ferromagnetic and ferroelectric constituents of magnetoelectric (ME) composites makes them potential candidates for novel multifunctional devices. ME composites in the form of thin-film heterostructures show promising applications in miniaturized ME devices. This article reports the recent advancement in ME thin-film devices, such as highly sensitive magnetic field sensors, ME antennas, integrated tunable ME inductors, and ME band-pass filters, is discussed. (Pb1−xZrx)TiO3 (PZT), Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT), Aluminium nitride (AlN), and Al1−xScxN are the most commonly used piezoelectric constituents, whereas FeGa, FeGaB, FeCo, FeCoB, and Metglas (FeCoSiB alloy) are the most commonly used magnetostrictive constituents in the thin film ME devices. The ME field sensors offer a limit of detection in the fT/Hz1/2 range at the mechanical resonance frequency. However, below resonance, different frequency conversion techniques with AC magnetic or electric fields or the delta-E effect are used. Noise floors of 1–100 pT/Hz1/2 at 1 Hz were obtained. Acoustically actuated nanomechanical ME antennas operating at a very-high frequency as well as ultra-high frequency (0.1–3 GHz) range, were introduced. The ME antennas were successfully miniaturized by a few orders smaller in size compared to the state-of-the-art conventional antennas. The designed antennas exhibit potential application in biomedical devices and wearable antennas. Integrated tunable inductors and band-pass filters tuned by electric and magnetic field with a wide operating frequency range are also discussed along with miniaturized ME energy harvesters.
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Cai, Longzhu, and Qiushi Yu. "Comparison of Metallization Schemes on Glass Dielectrics for X-Band Glass Antennas and Energy Harvesting." Materials 14, no. 23 (November 28, 2021): 7283. http://dx.doi.org/10.3390/ma14237283.

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We prepare and test four types of glass antennas for X-band applications and energy harvesting. These antennas are made of three different glass metallization schemes, including conductive copper foil (CCF), conductive silver paste (CSP) and indium tin oxide (ITO) thin film. Compared with conventional microstrip patch antennas, the dielectric substrate materials of these designs are replaced with silicon-boron glass (εr = 6, tangent δ = 0.002). The antenna with CCF as a radiator and ground plane (case one) is compared with the antenna with ITO replacing the radiator (case two) and ground plane (case three), respectively, and the glass antenna made of CSP (case four) is also presented. In this paper, these four types of glass antennas are measured and analyzed, and a comparison of the fabrication process and performance of these antennas is demonstrated. This study could contribute to the development of human-machine interactivity (HMI) systems with glass dielectric substrates.
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Amram Bengio, E., Damir Senic, Lauren W. Taylor, Robert J. Headrick, Michael King, Peiyu Chen, Charles A. Little, et al. "Carbon nanotube thin film patch antennas for wireless communications." Applied Physics Letters 114, no. 20 (May 20, 2019): 203102. http://dx.doi.org/10.1063/1.5093327.

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Dissertations / Theses on the topic "Thin film antennas"

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Karnick, David A. "Miniaturization of Folded Slot Antennas through Inductive Loading and Thin Film Packaging." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1295549545.

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Maddela, Madhurima Ramadoss Ramesh. "Design of MEMS-based tunable antennas, organic transistors and MEMS-based organic control circuits." Auburn, Ala, 2008. http://repo.lib.auburn.edu/2007%20Fall%20Dissertations/Maddela_Madhurima_8.pdf.

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Castillo, Solis Maria De los angeles. "Dielectric resonator antennas and bandwidth enhancement techniques." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/dielectric-resonator-antennas-and-bandwidth-enhancement-techniques(44b64ce4-dc73-496a-b656-dc4b9c910291).html.

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In this thesis a technique that is being used in another area of technology to optimize light reception in a photographic camera was also applied to the dielectric resonator antenna. The technique consisting of the use of thin film to couple the media and camera impedances resulted in a dielectric resonator antenna bandwidth enhancement technique. The bandwidth enhancement technique was found when thin film dielectric layer structure was used to couple the dielectric resonator and its feed mechanism. Remarkable good performance was detected with a coplanar waveguide fed cylindrical dielectric resonator antenna which resulted in an improvement to its fractional bandwidth from 7.41% to 50.85%. Extensive experimental work was undertaken in order to explore the extent offered in bandwidth performance by using thin film dielectric layer structure in the dielectric resonator antenna performance. The experimental tasks were designed in order to investigate the influence of the thin film dielectric layer structure in relation to its size, shape, thickness, position and direction. Experimental results were supported with simulation work with the computer simulation technology microwave studio. The pieces of the material used for undertaking this experimental work were manually handcrafted. Four different dielectric resonator antenna designs were used in order to carry out the experimental work including the coplanar waveguide fed cylindrical dielectric resonator antenna. The other three dielectric resonator antennas were implemented using the same microstrip feed mechanism. Improved performance in bandwidth was achieved for all the designs. Optimization of the incoming signal was observed when a piece of thin film dielectric layer structure was placed in position between the feed mechanism and the dielectric resonator antenna. The optimization was observed as an enhancement in both the return loss level and the bandwidth of work. Different unexpected operational modes from were activated, such modes being called perturbed modes. Two different shapes were used in this project. Cylindrical dielectric resonator antenna (ɛr = 37) from a commercial provider and two novel rectangular dielectric resonator antennas. The novel rectangular dielectric resonator antennas were created with the methodology presented in this thesis. The rectangular dielectric resonator antennas were elaborated with transparent ceramic material (ɛr = 7) and TMM10i (ɛr = 9.8) from the Rogers Corporation company. The bandwidth enhancement technique was tested in novel embedded dielectric resonator antennas. A coplanar waveguide fed embedded cylindrical dielectric resonator antenna achieved a maximum bandwidth enhancement of 156.77% around f = 3.79 GHz with a thin film dielectric layer structure modified rectangular piece on one edge. Escalation to dielectric resonator antenna design at millimeter wave frequencies was achieved by using thin film dielectric layer structure bandwidth enhancement technique and a handcrafted printed circuit board millimeter wave feed mechanism. The millimeter wave feed mechanisms were achieved using a low cost alternative technique conceived as part of this project. Millimeter wave dielectric resonator antennas were implemented using thin film dielectric layers structure. The antennas deliver an adequate performance in bandwidth. The work presented in this thesis demonstrates dielectric resonator antenna simpler geometry, simple couple schemes, small size, low profile, light weight, and ease of excitation and orientation. Other parameters have also been investigated covering reduced complexity, high degree of flexibility, ease of fabrication and the use of low cost technology to escalate to millimeter wave frequencies.
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Rammal, Mohamad. "Développement d'antennes agiles en fréquence intégrant un condensateur ferroélectrique." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0094/document.

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L’évolution rapide des communications sans fil a favorisé l’augmentation du nombre de standards alloués aux systèmes de communication fonctionnant sur différentes bandes de fréquences. Pour accompagner les derniers développements de systèmes sans fil, il est indispensable de concevoir des antennes miniatures intégrables. Cependant, la miniaturisation des antennes s’accompagne d’une réduction significative de la bande passante et de leur efficacité de rayonnement ainsi qu’à l’apparition d’un décalage fréquentiel de leurs fréquences de fonctionnement lorsqu’elles sont étudiées dans leur contexte d’utilisation. L’intégration de dispositifs accordables au sein d 'une antenne permet de répondre favorablement à ces problématiques. Parmi les solutions proposées dans la littérature, l’utilisation de matériaux ferroélectriques en couche mince permet de concevoir un condensateur accordable en fonction du champ électrique appliqué. Ces dispositifs réalisés à base de couches minces ferroélectriques ont été développés pour répondre aux exigences particulières et extrêmes des systèmes de télécommunication actuels (miniaturisation, faible coût, facilité de fabrication et d’intégration et bonne tenue en puissance). Cette thèse s’inscrit dans la continuité des recherches sur les antennes reconfigurables en fréquences à base de matériaux ferroélectriques. Deux axes principaux ont été développés au cours de ces travaux de recherche : le développement et la réalisation de condensateurs intégrant un film BST au sein du laboratoire XLIM et leurs caractérisations en hyperfréquence. La seconde partie de nos travaux concerne l’intégration de l’un de ces dispositifs accordables au sein d’une antenne miniature afin d’étudier son accordabilité en fréquence
The rapid growth of wireless communication has promoted the increase of the number of standards for wireless applications. This progress requests new manufacturing processes of smart devices that are able to work on several frequency bands. However, the miniaturization of antennas is accompanied by a significant reduction of the bandwidth as well as its radiation efficiency and it becomes dependent on its using context. Tunable devices can be integrated within antennas in order to overcome these main issues. Among the solutions proposed in the literature, thin-film ferroelectric materials are used to realize tunable capacitors. The use of such materials allows the design of a tunable capacitor that can be tuned by an applied electric field. The advances of these ferroelectric thin-film devices were developed in order to meet particular and extreme requirements for today's telecommunication systems (miniaturization, low cost, ease of the manufacture process, integration and good power handling). This thesis is part of ongoing research over frequency reconfigurable antennas which are based on ferroelectric materials. Two main axes were developed during this work: The development and realization of capacitors that incorporate a BST film along with their microwave characterizations within XLIM lab. The second part of our work is dedicated to the realization of the complete tunable antenna
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Sumanam, Satya Parthiva Sri. "A Conductor Backed, Coplanar Waveguide Fed, Linear Array Comprised of Bowtie Antennas for a Varactor Tuned Radiation Pattern." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1470346770.

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Nguyen, Viet Hung. "Antennes miniatures et reconfigurables utilisant des matériaux diélectriques et ferroélectriques oxydes et oxynitrures en couches minces." Phd thesis, Université Rennes 1, 2013. http://tel.archives-ouvertes.fr/tel-00866988.

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Face à la volonté d'intégrer une quantité toujours plus importante de nouveaux services au sein des terminaux mobiles de nouvelle génération et afin de répondre à leurs contraintes d'encombrement, des nouveaux concepts d'antennes intelligentes font l'objet de nombreuses recherches. Parmi les solutions proposées dans la littérature, la technique consistant à charger l'antenne par un matériau aux propriétés commandables apparaît particulièrement intéressante puisque elle cumule les effets de miniaturisation et d'agilité. Le travail de cette thèse concerne l'intégration des films minces La-Ti-O-N et BST dans des antennes miniatures et agiles en fréquence. Pour cela, une étude systématique des propriétés diélectriques (constante, tangente de pertes et accordabilité) des films La-Ti-O-N a été réalisée en basses et hautes fréquences. Ces propriétés sont fonction des caractéristiques structurales des films, elles-mêmes issues de la nature du substrat utilisé et des conditions de dépôt. En parallèle, une étude sur l'intégration de ces matériaux dans des structures rayonnantes pour atteindre l'agilité souhaitée a été menée. De premiers démonstrateurs d'antennes miniatures et reconfigurables à base des films minces La-Ti-O-N et BST ont été réalisés et caractérisés.
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Karempudi, Venkata Sai Praneeth. "TRANSPARENT ANTENNAS BASED ON NANOWIRE THIN FILMS." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1574333540776648.

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Pan, Kuan-Chang. "Ferroelectric Barium Strontium Titanate Thin-Film Varactor Based Reconfigurable Antenna." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1323453777.

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Wilke, Ingrid. "Antenna-coupled nanometer thin-film Ni-NiO diodes for the detection of 30 THz infrared radiation /." Zürich, 1993. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10019.

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Saintier, David. "Caractérisation numérique d’antennes VLF-LF en environnement réel." Thesis, Université Côte d'Azur (ComUE), 2018. http://www.theses.fr/2018AZUR4081/document.

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Les très basses fréquences (VLF) sont aujourd’hui principalement utilisées pour les communications sous-marines. Ces fréquences ont en effet l’avantage de pénétrer dans l’eau de mer jusqu’à quelques dizaines de mètre de profondeur, ainsi que de permettre des communications à très longue distance, au-delà de l’horizon. Les antennes nécessaires à l’établissement de ces communications sont nécessairement de très petite taille par rapport aux longueurs d’onde mises en jeu. Ces antennes sont des structures composées de centaines de mètre de câbles métalliques, situées à un emplacement étudié pour les qualités diélectriques du sol ou les avantages structurels du relief. Pour étudier de telles antennes, nous proposons l’utilisation d’un code basé sur une méthode temporelle, la TLM. Cette méthode peut se révéler être très efficace pour des études sur de larges bandes de fréquence et en présence d’un environnement diélectrique complexe. Pour cela, nous avons amélioré le modèle du Fil Mince permettant de modéliser une structure métallique en une dimension et avons cherché à valider son fonctionnement en présence d’un environnement réaliste. Dans ce document, nous présentons ainsi les différentes étapes ayant abouties aux améliorations apportées au modèle de Fil Mince. Notre code a été validé en comparant nos résultats à ceux de FEKO, un logiciel commercial basé sur la MoM considéré comme la méthode la plus adaptée à ce type de problème. Nous avons proposé, en particulier, une solution permettant de garantir une bonne précision du modèle quel que soit l’orientation du fil dans le maillage cartésien 3D. Nous avons ensuite précisé le domaine de validité des fils coudés ainsi que des jonctions de plusieurs fils. Nous avons étudié également l’interaction entre le fil et des milieux inhomogènes. Il s’agit là d’une problématique ambitieuse pour laquelle nous avons apporté quelques éléments de réponse mais qui reste à ce jour un verrou technologique à lever. Enfin, nous avons étudié des structures antennaires réalistes. Les simulations d’un système composé d’antennes en T déployé dans une vallée ont permis d’appréhender le fonctionnement d’une telle structure et ont montré l’intérêt de notre méthode. En effet, les temps de calcul nécessaires à la résolution du problème sont significativement plus faibles avec le code TLM qu’avec le logiciel FEKO sur ce type de sol complexe. Les simulations d’une antenne Trideco avec un plan de masse radial aérien ou enterré ont quant à elles montré les limites actuelles du code TLM qui reste handicapé par une modélisation imprécise des nœuds de connexion entre plusieurs fils et de leur interaction avec les milieux inhomogènes
Submarine communications are the main usage of the very low frequency (VLF). This frequency band allows to radiate up to a few tens meter of depth and to a very long distance. Antennas for such telecommunications are necessarily small in regard to the wavelength. However, these structures are composed of hundred meters of thin metallic cables and their locations are often chosen for their dielectric characteristics or the structural advantage provided by the relief. To evaluate such antennas, we propose to use a home-made software, based on the TLM method. Such technique can be efficient for studying wide band electromagnetic problems in complex dielectric environment. Then we have improved the TLM Thin Wire model and we have evaluated its performances in realistic environment. In this document, we present our work and its validation by comparing our results to those obtained with the commercial software FEKO, based on the MoM, considered as the most suitable technique for this kind of problem. A solution assuring a good accuracy of the model for an arbitrary orientation of the Thine Wire in the 3D cartesian grid was proposed. We have also specified the limitations of the bent wire and the wires junction. In addition, we have studied the interaction between the wire and inhomogeneous media. This is an ambitious problem for which we brought some elements of answer but which remains a challenge. Finally, we have tested our software on some realistic antenna systems. The simulations of a valley span T antennas system allow to understand the functioning of such radiating structure and to show the interest of our method. The computation times are significantly lower with the TLM method than with FEKO to deal with antennas above such complex ground. However, the simulations of a Trideco antenna with aerial or buried radial ground plane showed the actual limitations of the TLM software which remains handicapped by an insufficient accuracy of the wires junction model and the inhomogeneous media interactions
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Books on the topic "Thin film antennas"

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National Aeronautics and Space Administration (NASA) Staff. Advances in Scanning Reflectarray Antennas Based on Ferroelectric Thin Film Phase Shifters for Deep Space Communications. Independently Published, 2019.

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Book chapters on the topic "Thin film antennas"

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Suzuki, N., Y. Nagai, K. Itoh, and O. Michikami. "Input power characteristics of superconducting thin-film antennas." In Advances in Superconductivity VI, 1177–80. Tokyo: Springer Japan, 1994. http://dx.doi.org/10.1007/978-4-431-68266-0_267.

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Morimoto, M., H. Saijo, M. Yamashita, M. Tonouchi, and M. Hangyo. "Terahertz Radiation Patterns of YBCO Thin Film Antennas." In Advances in Superconductivity XII, 1111–13. Tokyo: Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-66877-0_328.

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Suzuki, Naobumi, Keiichiro Itoh, Yasuhiro Nagai, and Osamu Michikami. "Superconductive Small Antennas Made of EuBaCuO Thin Films." In Advances in Superconductivity V, 1127–30. Tokyo: Springer Japan, 1993. http://dx.doi.org/10.1007/978-4-431-68305-6_252.

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Ehata, Katsufumi, Masanobu Kusunoki, Shigetoshi Ohshima, and Helmut Kinder. "Characterization of Superconducting Patch Antenna Fabricated by Both-Side Superconducting Thin Film." In Advances in Superconductivity X, 1153–56. Tokyo: Springer Japan, 1998. http://dx.doi.org/10.1007/978-4-431-66879-4_273.

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Zhang, Zhaohang, Jinfeng Liu, Jingxia Shang, Weisheng Yang, Xu Chen, and Jianjun Zhu. "The High Precision Graphic Continuous Production Technology for the Ultra-long Thin Film Antenna." In Lecture Notes in Electrical Engineering, 11–18. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-32-9441-7_2.

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Abdullah, Huda, Noor Atikah Abdullah, Mohd Syafiq Zulfakar, and Wan Nasarudin Wan Jalal. "Fabrication of Nanostructure Ba(1-x ) Co(x ) Ti03 thin Films Synthesized by Sol-Gel Method for Patch Antenna Application." In Developments in Strategic Materials and Computational Design V, 189–99. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119040293.ch16.

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Naresh B., Vinod Kumar Singh, and Virendra Kumar Sharma. "Design of RF Rectenna on Thin Film to Power Wearable Electronics." In Design and Optimization of Sensors and Antennas for Wearable Devices, 25–39. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-5225-9683-7.ch003.

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This chapter reports a hybrid wearable energy harvesting system. Integration of microwave antenna on thin film amorphous silicon solar cell creates a hybrid system that can harvest both the solar and microwave energies. The antenna designed on solar cell will harvest the microwave energy at dual frequencies 1.85 GHz and 2.45 GHz with an effective return loss of 28dB and 27dB respectively. A complete hybrid harvesting system consist of a flexible solar cell, antenna, voltage doubler, and impedance matching dual band filter. The rectifier, designed on a rigid glass-reinforced epoxy substrate, is a voltage doubler and a matching circuit is designed by microstrip lines is used.
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Awad, Ehab. "Infrared Nano-Focusing by a Novel Plasmonic Bundt Optenna." In Plasmonics [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.104695.

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Infrared optical detection devices such as photodetectors, solar cells, cameras, and microbolometers are becoming smaller in size with a tiny active area in the range of a few micrometers or even nanometers. That comes at the expense of a smaller aperture area of the device, and in turn inefficient collection of infrared energy. Therefore, infrared plasmonic optical antennas are becoming essential to efficiently collect optical energy from free space and concentrate it down to the device’s tiny area. However, it is desirable to develop plasmonic antennas with a broad bandwidth, polarization insensitivity, wide field-of-view, and reasonable plasmonic losses. That ensures collection of most incident infrared radiation and enhancement of power absorption efficiency. In this chapter, some types of plasmonic antennas are explored with an emphasis on innovative type of optical antenna called Bundt Optenna. We investigate Bundt Optenna design and optimization. This antenna has a novel shape that looks like a Bundt baking pan and it is made of gold. Several Bundt unit cells can be arranged in a periodic array that is placed on top of a thin-film infrared absorbing layer. The Bundt Optenna utilizes surface plasmons to squeeze both electric and magnetic fields of infrared radiation down to a 50 nm wide area, thus enhancing absorption efficiency within an underneath thin-film layer. The Optenna demonstrates polarization insensitivity and ultra-broad bandwidth with a large fractional bandwidth within the near, short-wave, and mid-wave infrared bands. It also shows a remarkable enhanced power absorption efficiency and a wide field-of-view.
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Park, Book-Sung, Hyun-Sang Lee, and Soren Pederse. "Fabrication and Characterizations of Multi-Layer Thin Film Internal Antenna for Wireless Communication." In Advanced Trends in Wireless Communications. InTech, 2011. http://dx.doi.org/10.5772/15008.

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Ali, Amjad, Qian Li, Hongyan Fu, and Syed Raza Mehdi. "Blue Laser Diode-Based Visible Light Communication and Solid-State Lighting." In Antenna Systems [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100106.

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In this chapter, we review our recent work on blue laser diode-based visible light communication and solid-state lighting. Gallium nitride (GaN) phosphor-converted white light-emitting diodes (Pc-WLEDs) are emerging as an indispensable solid-state lighting (SSL) source for next-generation display system and the lighting industry. Together with the function of lighting, visible light communication (VLC) using Pc-WLEDs has gained increasing attention to fulfill the growing demand for wireless data communication. Practically, the low modulation response and low emitting intensity of light-emitting diodes (LED) are the drawbacks for the development of ultrahigh-speed VLC and high-quality SSL system. Blue GaN laser diode (LD) and remote phosphor-based white light can be used for both high-speed VLC and SSL simultaneously. We demonstrated a color-rendering index (CRI) of 93.8, a correlated color temperature (CCT) of 4435 K, and a data rate of 1.6 Gbps under NRZ-OOK modulation by an exciting blue laser diode on narrowband green−/red-emitting composite phosphor film. This work opens up exciting possibilities for future high-speed indoor VLC and high-quality SSL.
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Conference papers on the topic "Thin film antennas"

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Wang, H. Y., and M. J. Lancaster. "Aperture-Coupled Thin Film Superconducting Meander Antennas." In 28th European Microwave Conference, 1998. IEEE, 1998. http://dx.doi.org/10.1109/euma.1998.338069.

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Yasuoka, Yoshizumi, and Takashi Uchida. "Thin-film antennas for terahertz radiation detectors." In 2010 35th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz 2010). IEEE, 2010. http://dx.doi.org/10.1109/icimw.2010.5612531.

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Shibagaki, Hironori, Seiya Kishimoto, Yoshito Ashizawa, Katsuji Nakagawa, and Shinichiro Ohnuki. "Electromagnetic Analysis of Thin Film with Periodic Metal." In 2021 International Symposium on Antennas and Propagation (ISAP). IEEE, 2021. http://dx.doi.org/10.23919/isap47258.2021.9614535.

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Zhang, Bohan, Wei Xia, Jingwei Zhang, Daping He, Chengguo Liu, and Zhi Wu. "Rectangular dielectric resonator antennas with a thin graphene film." In 2017 International Symposium on Antennas and Propagation (ISAP). IEEE, 2017. http://dx.doi.org/10.1109/isanp.2017.8228789.

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Zhou, Shu, Hu Zheng, En Li, and Chao Zhao. "Electromagnetic parameters measurement of magnetic thin film materials." In 2017 Sixth Asia-Pacific Conference on Antennas and Propagation (APCAP). IEEE, 2017. http://dx.doi.org/10.1109/apcap.2017.8420757.

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Nguyen, H., R. Benzerga, C. Delaveaud, A. Sharaiha, Y. Lu, C. Le Paven, L. Le Gendre, and X. Castel. "New thin film varactor for frequency tunable slot antenna." In 2012 6th European Conference on Antennas and Propagation (EuCAP). IEEE, 2012. http://dx.doi.org/10.1109/eucap.2012.6206335.

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Abdullah, N., N. M. Jizat, S. K. A. Rahim, M. I. Sabran, and Mukter Zaman. "Investigation on graphene based multilayer thin film patch antenna." In 2016 10th European Conference on Antennas and Propagation (EuCAP). IEEE, 2016. http://dx.doi.org/10.1109/eucap.2016.7481808.

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Galindo-Romera, Gabriel, Francisco Javier Herraiz-Martinez, Marta Gil, Jose Juan Martinez-Martinez, and Daniel Segovia-Vargas. "Split-Ring Resonator-based sensor for thin-film sensing applications." In 2016 10th European Conference on Antennas and Propagation (EuCAP). IEEE, 2016. http://dx.doi.org/10.1109/eucap.2016.7481615.

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Khan, O., J. Meyer, K. Baur, S. Arafat, and C. Waldschmidt. "Hybrid Thin Film Multilayer Antenna Automotive Radar at 77 GHz." In 12th European Conference on Antennas and Propagation (EuCAP 2018). Institution of Engineering and Technology, 2018. http://dx.doi.org/10.1049/cp.2018.0549.

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Jangsoo Lee, Sangbok Park, Dongkyu Lee, Saengseub Song, Sanghyo Lee, Joonho So, Youngwoo Kwon, Kwangseok Seo, and Changyul Cheon. "Development of a V-band rotman lens using thin-film dielectric." In 2007 IEEE Antennas and Propagation Society International Symposium. IEEE, 2007. http://dx.doi.org/10.1109/aps.2007.4396084.

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Reports on the topic "Thin film antennas"

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Price, John C. Tunable Antennas Using Thin Film Ferroelectrics. Fort Belvoir, VA: Defense Technical Information Center, September 1994. http://dx.doi.org/10.21236/ada299576.

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Hubbard, C. W., C. G. Fountzoulas, M. W. Cole, and S. Sengupta. Mechanical and Microstructural Evaluation of Barium Strontium Titanate Thin Films for Improved Antenna Performance and Reliability. Fort Belvoir, VA: Defense Technical Information Center, April 1999. http://dx.doi.org/10.21236/ada361481.

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