Relevant bibliographies by topics / 3D printed antenna

Academic literature on the topic '3D printed antenna'

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Published: 10 March 2023

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Journal articles on the topic "3D printed antenna"

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Yurduseven, Okan, Shengrong Ye, Thomas Fromenteze, Benjamin J. Wiley, and David R. Smith. "3D Conductive Polymer Printed Metasurface Antenna for Fresnel Focusing." Designs 3, no. 3 (September 4, 2019): 46. http://dx.doi.org/10.3390/designs3030046.

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We demonstrate a 3D printed holographic metasurface antenna for beam-focusing applications at 10 GHz within the X-band frequency regime. The metasurface antenna is printed using a dual-material 3D printer leveraging a biodegradable conductive polymer material (Electrifi) to print the conductive parts and polylactic acid (PLA) to print the dielectric substrate. The entire metasurface antenna is 3D printed at once; no additional techniques, such as metal-plating and laser etching, are required. It is demonstrated that using the 3D printed conductive polymer metasurface, high-fidelity beam focusing can be achieved within the Fresnel region of the antenna. It is also shown that the material conductivity for 3D printing has a substantial effect on the radiation characteristics of the metasurface antenna.
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Chen, Yi, Jiang Lu, Qing Guo, and Lei Wan. "3D printing of CF/nylon composite mold for CF/epoxy parabolic antenna." Journal of Engineered Fibers and Fabrics 15 (January 2020): 155892502096948. http://dx.doi.org/10.1177/1558925020969484.

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Parabolic antennas, which are wildly used as high-gain antennas for point-to-point communications, need many iterations of design-fabrication-test in parabolic antenna development. However, traditional molding via mechanical processing takes a long manufacturing cycle and high cost. In this paper, a 3D-printed CF/nylon composite parabolic mold for CF/epoxy parabolic antenna is studied. It’s found that the coefficient of thermal expansion (CTE) of 3D-printed CF/nylon composite is usually anisotropic due to the low adhesion between printed layers and the aligned short carbon fiber along the printing trace. Here an inclined mode of 3D printing could uniform the CTE of the antenna mold and solve the problems of large printing steps and the separation of supports and mold occurred in horizontal and vertical modes, respectively. The parabolic mold also reveals high profile precision with a low root mean square (RMS) deviation of 0.14 mm. Utilizing the 3D-printed CF/nylon composite mold, parabolic antenna skin with low surface RMS deviation of 0.16 mm was successfully fabricated by laying CF/epoxy prepreg and curing in autoclave. This research about isotropic and smooth 3D-printed CF/nylon mold may support the low-cost and rapid mold development for microwaves relay links on ground and satellite communication antennas.
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Abdul Malek, Norun, Athirah Mohd Ramly, Atiah Sidek, and Sarah Yasmin Mohamad. "Characterization of Acrylonitrile Butadiene Styrene for 3D Printed Patch Antenna." Indonesian Journal of Electrical Engineering and Computer Science 6, no. 1 (April 1, 2017): 116. http://dx.doi.org/10.11591/ijeecs.v6.i1.pp116-123.

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<p>3D printing is one of the additive manufacturing technology that has gain popularity for time saving and complex design. This technology increases a degree of flexibility for potential 3D RF applications such as wearable and conformal antennas. This paper demonstrates a circular patch antenna fabricated on 3D printed Acrylonitrile Butadiene Styrene (ABS) filament. The main reason of using a 3D printer is that it is accurate, easy to fabricate of a complex geometry and the ability to create new antennas that cannot be made using conventional fabrication techniques. The ABS material has a tangent loss of 0.0051 and the relative permittivity is 2.74. The thickness of the substrate is 1.25 mm. The simulation has been performed using Computer Simulation Technology (CST). The return loss from simulation software is in good match with measurement which is 12.5dB at 2.44GHz. Hence, from the results obtained, the ABS could be used as a substrate for an antenna.</p>
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Ávila-Navarro, E., and C. Reig. "Directive Microstrip Antennas for Specific Below −2.45 GHz Applications." International Journal of Antennas and Propagation 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/612170.

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Microstrip printed antennas are the preferred choice in high data ratio modern communications, mainly at 2.45 GHz and above. In this paper, we propose two different approaches of microstrip printed antennas for lower frequency usage. In this sense, we present a printed microstrip Yagi-like antenna at 868 MHz and a printed dipole log-periodic antenna for wider band applications. We focus on the use of low-cost substrates, with a good performance at these frequencies, and giving antennas with useful sizes for such applications. For the analysis, we make use of standard experimental characterization combined with full-wave 3D-FDTD specifically developed simulations. In this way, the S11, radiation patterns, and gain/efficiency figures are given.
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He, Han, Xiaochen Chen, Leena Ukkonen, and Johanna Virkki. "Textile-integrated three-dimensional printed and embroidered structures for wearable wireless platforms." Textile Research Journal 89, no. 4 (January 8, 2018): 541–50. http://dx.doi.org/10.1177/0040517517750649.

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In this paper, we present fabrication and performance evaluation of three-dimensional (3D) printed and embroidered textile-integrated passive ultra high frequency radio frequency identification (RFID) platforms. The antennas were manufactured by 3D printing a stretchable silver conductor directly on an elastic band. The electric and mechanical joint between the 3D printed antennas and microchips was formed by gluing with conductive epoxy glue, by printing the antenna directly on top of the microchip structure, and by embroidering with conductive yarn. Initially, all types of fabricated RFID tags achieved read ranges of 8–9 meters. Next, the components were tested for wetting as well as for harsh cyclic strain and bending. The immersing and cyclic bending slightly affected the performance of the tags. However, they did not stop the tags from working in an acceptable way, nor did they have any permanent effect. The epoxy-glued or 3D printed antenna–microchip interconnections were not able to endure harsh stretching. On the other hand, the tags with the embroidered antenna–microchip interconnections showed excellent wireless performance, both during and after a 100 strong stretching cycles. Thus, the novel approach of combining 3D printing and embroidery seems to be a promising way to fabricate textile-integrated wireless platforms.
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Al-Naiemy, Yahiea, Taha A. Elwi, Haider R. Khaleel, and Hussain Al-Rizzo. "A Systematic Approach for the Design, Fabrication, and Testing of Microstrip Antennas Using Inkjet Printing Technology." ISRN Communications and Networking 2012 (May 30, 2012): 1–11. http://dx.doi.org/10.5402/2012/132465.

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We present a systematic approach for producing microstrip antennas using the state-of-the-art-inkjet printing technique. An initial antenna design based on the conventional square patch geometry is adopted as a benchmark to characterize the entire approach; the procedure then could be generalized to different antenna geometries and feeding techniques. For validation purposes, the antenna is designed and simulated using two different 3D full-wave electromagnetic simulation tools: Ansoft’s High Frequency Structure Simulator (HFSS), which is based on the Finite Element Method (FEM), and CST Microwave Studio, which is based on the Finite Integration Technique (FIT). The systematic approach for the fabrication process includes the optimal number of printed layers, curing temperature, and curing time. These essential parameters need to be optimized to achieve the highest electrical conductivity, trace continuity, and structural robustness. The antenna is fabricated using Inkjet Printing Technology (IJPT) utilizing Sliver Nanoparticles (SNPs) conductive ink printed by DMP-2800 Dimatix FujiFilm materials printer.
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Belen, Aysu, and Evrim Tetik. "Realization of Modified Elliptical Shaped Dielectric Lens Antenna for X Band Applications with 3D Printing Technology." Applied Computational Electromagnetics Society 35, no. 8 (October 7, 2020): 916–21. http://dx.doi.org/10.47037/2020.aces.j.350810.

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Placing dielectric lens structures into an antenna's aperture has proven to be one of the most reliable methods of enhancing its gain. However, the selected material and the prototyping method usually limit their fabrication process. With the advances in 3D printing technology and their applications, the microwave designs that were either impractical or impossible in the past to manufacture using traditional methods, are now feasible. Herein, a novel prototyping method by using 3D-printer technology for low-cost, broadband, and high gain dielectric lens designs has been presented. Firstly, the elliptical lens design has been modeled in the 3D EM simulation environment. Then fused deposition modeling based 3D-printing method has been used for the fabrication of the dielectric lens. The measured results of the 3D printed antenna show that the lens antenna has a realized gain of 17 to 20.5 dBi over 8-12 GHz. Moreover, the comparison of the prototyped antenna with its counterpart dielectric lens antenna in the literature has indicated that the proposed method is more efficient, more beneficial, and has a lower cost.
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Helena, Diogo, Amélia Ramos, Tiago Varum, and João N. Matos. "The Use of 3D Printing Technology for Manufacturing Metal Antennas in the 5G/IoT Context." Sensors 21, no. 10 (May 11, 2021): 3321. http://dx.doi.org/10.3390/s21103321.

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With the rise of 5G, Internet of Things (IoT), and networks operating in the mmWave frequencies, a huge growth of connected sensors will be a reality, and high gain antennas will be desired to compensate for the propagation issues, and with low cost, characteristics inherent to metallic radiating structures. 3D printing technology is a possible solution in this way, as it can print an object with high precision at a reduced cost. This paper presents different methods to fabricate typical metal antennas using 3D printing technology. These techniques were applied as an example to pyramidal horn antennas designed for a central frequency of 28 GHz. Two techniques were used to metallize a structure that was printed with polylactic acid (PLA), one with copper tape and other with a conductive spray-paint. A third method consists of printing an antenna completely using a conductive filament. All prototypes combine good results with low production cost. The antenna printed with the conductive filament achieved a better gain than the other structures and showed a larger bandwidth. The analysis recognizes the vast potential of these 3D-printed structures for IoT applications, as an alternative to producing conventional commercial antennas.
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Avşar Aydın, Emine. "3D-Printed Graphene-Based Bow-Tie Microstrip Antenna Design and Analysis for Ultra-Wideband Applications." Polymers 13, no. 21 (October 28, 2021): 3724. http://dx.doi.org/10.3390/polym13213724.

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In this study, the effects of graphene and design differences on bow-tie microstrip antenna performance and bandwidth improvement were investigated both with simulation and experiments. In addition, the conductivity of graphene can be dynamically tuned by changing its chemical potential. The numerical calculations of the proposed antennas at 2–10 GHz were carried out using the finite integration technique in the CST Microwave Studio program. Thus, three bow-tie microstrip antennas with different antenna parameters were designed. Unlike traditional production techniques, due to its cost-effectiveness and easy production, antennas were produced using 3D printing, and then measurements were conducted. A very good match was observed between the simulation and the measurement results. The performance of each antenna was analyzed, and then, the effects of antenna sizes and different chemical potentials on antenna performance were investigated and discussed. The results show that the bow-tie antenna with a slot, which is one of the new advantages of this study, provides a good match and that it has an ultra-bandwidth of 18 GHz in the frequency range of 2 to 20 GHz for ultra-wideband applications. The obtained return loss of −10 dB throughout the applied frequency shows that the designed antennas are useful. In addition, the proposed antennas have an average gain of 9 dBi. This study will be a guide for microstrip antennas based on the desired applications by changing the size of the slots and chemical potential in the conductive parts in the design.
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Gu, Chao, Steven Gao, Vincent Fusco, Gregory Gibbons, Benito Sanz-Izquierdo, Alexander Standaert, Patrick Reynaert, et al. "A D-Band 3D-Printed Antenna." IEEE Transactions on Terahertz Science and Technology 10, no. 5 (September 2020): 433–42. http://dx.doi.org/10.1109/tthz.2020.2986650.

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Dissertations / Theses on the topic "3D printed antenna"

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Johnson, Brent, Colin Madrid, Kevin Yiin, Hanwen Wang, Chengxi Li, and Xizhi Tan. "3D Printed Antennas for Wireless Communication." International Foundation for Telemetering, 2015. http://hdl.handle.net/10150/596460.

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ITC/USA 2015 Conference Proceedings / The Fifty-First Annual International Telemetering Conference and Technical Exhibition / October 26-29, 2015 / Bally's Hotel & Convention Center, Las Vegas, NV
This paper describes the details of design and critical analysis of the process of 3D printing antennas for wireless communications applications. The subjective testing methods utilized were chosen specifically based on project scope and researcher capability. Our results indicate that more work is necessary in this field but that the basic idea is feasible.
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Wu, Junqiang. "ANTENNA RADIATION PATTERN CONTROL BASED ON 3D PRINTED DESIGN." International Foundation for Telemetering, 2016. http://hdl.handle.net/10150/624254.

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Dielectric materials have been applied in modifying the antenna radiation pattern, but it is usually limited to single-beam applications. The goal of this paper is to present a novel methodology to control the antenna radiation pattern based on 3D printing technology. 3D printing enables arbitrary dielectric distribution at different locations. As a result, different radiation patterns can be realized by loading an optimized dielectric material with varied permittivity. In this work, we propose a design of a quarter-wavelength monopole antenna surrounded by a low-profile 3D-printed polymer structure with an optimized dielectric distribution. Unlike the conventional omnidirectional pattern of the monopole antenna, singlebeam and multiple-beam patterns are achieved using genetic algorithm (GA) optimization.
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Wu, Junqiang, Ahmed H. Abdelrahman, Xiaoju Yu, and Min Liang. "ANTENNA RADIATION PATTERN CONTROL BASED ON 3D PRINTED DESIGN." International Foundation for Telemetering, 2016. http://hdl.handle.net/10150/624266.

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Dielectric materials have been applied in modifying the antenna radiation pattern, but it is usually limited to single-beam applications. The goal of this paper is to present a novel methodology to control the antenna radiation pattern based on 3D printing technology. 3D printing enables arbitrary dielectric distribution at different locations. As a result, different radiation patterns can be realized by loading an optimized dielectric material with varied permittivity. In this work, we propose a design of a quarter-wavelength monopole antenna surrounded by a low-profile 3D-printed polymer structure with an optimized dielectric distribution. Unlike the conventional omnidirectional pattern of the monopole antenna, singlebeam and multiple-beam patterns are achieved using genetic algorithm (GA) optimization.
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Keerthi, Sandeep. "Low Velocity Impact and RF Response of 3D Printed Heterogeneous Structures." Wright State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=wright1514392165695378.

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Yu, Xiaoju, and Xiaoju Yu. "Investigation of Several Novel Radio-Frequency Techniques - Biologically Inspired Direction Finding, 3D Printed RF Components and Systems, and Fundamental Aspects of Antenna Matching." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/623148.

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This dissertation presents the investigation of biologically inspired direction finding (DF) and localization systems, 3D printing solution for RF components and systems, and fundamental aspects of antennas regarding bandwidth and power efficiency. Biologically inspired direction finding and localization systems are explored first. Inspired by the human binaural auditory system, an improved direction of arrival (DoA) estimation technique using two antennas with a lossy scatterer in between them to achieve additional magnitude cues is proposed. By exploiting the incident-angle- dependent magnitude and phase differences between the two antennas with specially designed scatterer, the DoA of an incident signal from two-dimensional (2-D) / three- dimensional (3-D) space can be estimated. Besides, compact DF systems with enhanced directional sensitivity using a scatterer of high permittivity in between adjacent closely spaced electrically-small antennas are examined. Inspired by the human monaural auditory system, a novel single-antenna DF technique is also proposed by exploiting the incident-angle-dependent spectra for a broadband RF signal only. In addition, a wideband superior DF system utilizing Luneburg lens and uniformly placed detectors on the equator of the lens is evaluated. The DoA is estimated using the amplitude distribution of the received signals at the detectors. Moreover, A portable inventory localization system utilizing hybrid RF (for direction, using previously introduced DF techniques) and ultrasound (for distance) signals is proposed and experimentally demonstrated. Next, a multilayer phased array system is designed and individual parts are printed to demonstrate the applicability of hybrid thermal wire-mesh embedding (for conductors) and thermoplastic extrusion (for dielectrics) techniques for additively manufacturing RF17integrated systems. Finally, fundamental aspects of antennas in terms of bandwidth limit for reactive matching and power efficiency for non-Foster matching are analyzed.
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Lin, Valentine, and Hamad Tarek Sayed. "3D Printing a Maxwell Fish Eye Lens With Periodic Structures." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-254262.

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With the rise of high frequency communication systems such as 5G, new types of antennas has to be developed in order to meet the new requirements. In recent years, lens antennas made of periodic structures has been shown to have desirable performance when increasing operational frequency without increasing the size of the antennas. One way of manufacturing the lenses for the antennas are with 3D printers loaded with dielectrics with specified permittivity. This project group studied the process of designing and manufacturing a flat Maxwell fish eye lens at 5 GHz with a bandwidth of 3.5 GHz to 6 GHz. The resulting design is a lens based on a periodic configuration of cuboid unit cells made from dielectrics which consisted of a hole. By choosing the ratio of dielectric and holes in the unit cells, each part of the lens could be tuned to achieve a specific effective refractive index required for realising the Maxwell fish eye lens.
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Dvořák, Václav. "3D tištěná směrová anténa." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400534.

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This master thesis deals with a study of directional antennas, followed by their design and optimalization of horn antenna based on SIW for Ka band (26,5- 40 GHz). The first part of the thesis contains the theoretical analysis of the different types of directional antennas, also the SIW technology is described here. It also describes the 3D printing technology by means of which the final antenna should be made. The next part of this work is about design of horn antenna based on SIW. Simulation and optimization of the antenna will be done using the CST Microwave Studio. The final part of the thesis deals with evaluation of achieved results.
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Hawatmeh, Derar Fayez. "Three Dimensional Direct Print Additively Manufactured High-Q Microwave Filters and Embedded Antennas." Scholar Commons, 2018. http://scholarcommons.usf.edu/etd/7165.

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The need for miniaturized, and high performance microwave devices has focused significant attention onto new fabrication technologies that can simultaneously achieve high performance and low manufacturing complexity. Additive manufacturing (AM) has proven its capability in fabricating high performance, compact and light weight microwave circuits and antennas, as well as the ability to achieve designs that are complicated to fabricate using other manufacturing approaches. Direct print additive manufacturing (DPAM) is an emerging AM process that combines the fused deposition modeling (FDM) of thermoplastics with micro-dispensing of conductive and insulating pastes. DPAM has the potential to jointly combine high performance and low manufacturing complexity, along with the possibility of real-time tuning. This dissertation aims to leverage the powerful capabilities of DPAM to come-up with new designs and solutions that meet the requirements of rapidly evolving wireless systems and applications. Furthermore, the work in this dissertation provides new techniques and approaches to alleviate the drawbacks and limitations of DPAM fabrication technology. Firstly, the development of 3D packaged antenna, and antenna array are presented along with an analysis of the inherent roughness of 3D printed structures to provide a deeper understanding of the antenna RF performance. The single element presents a new volumetric approach to realizing a 3D half-wave dipole in a packaged format, where it provides the ability to keep a signal distribution network in close proximity to the ground plane, facilitating the implementation of ground connections (e.g. for an active device), mitigating potential surface wave losses, as well as achieving a modest (10.6%) length reduction. In addition, a new approach of implementing conformal antennas using DPAM is presented by printing thin and flexible substrate that can be adhered to 3D structures to facilitate the fabrication and reduce the surface roughness. The array design leverages direct digital manufacturing (DDM) technology to realize a shaped substrate structure that is used to control the array beamwidth. The non-planar substrate allows the element spacing to be changed without affecting the length of the feed network or the distance to the underlying ground plane. The second part describes the first high-Q capacitively-loaded cavity resonator and filter that is compatible with direct print additive manufacturing. The presented design is a compromise between quality factor, cost and manufacturing complexity and to the best of our knowledge is the highest Q-factor resonator demonstrated to date using DPAM compatible materials and processes. The final version of the single resonator achieves a measured unloaded quality factor of 200-325 over the frequency range from 2.0 to 6.5 GHz. The two pole filter is designed using a coupled-resonator approach to operate at 2.44 GHz with 1.9% fractional bandwidth. The presented design approach simplifies evanescent-mode filter fabrication, eliminating the need for micromachining and vias, and achieving a total weight of 1.97 g. The design is fabricated to provide a proof-of-principle for the high-Q resonator and filter that compromises between performance, cost, size, and complexity. A stacked version of the two-pole filter is presented to provide a novel design for multi-layer embedded applications. The fabrication is performed using an nScrypt Tabletop 3Dn printer. Acrylonitrile Butadiene Styrene (ABS) (relative permittivity of 2.7 and loss tangent of 0.008) is deposited using fused deposition modeling to form the antenna, array, resonator, and filter structures, and Dupont CB028 silver paste is used to form the conductive traces conductive regions (the paste is dried at 90 °C for 60 minutes, achieving a bulk DC conductivity of 1.5×106 S/m.). A 1064 nm pulsed picosecond Nd:YAG laser is used to laser machine the resonator and filter input and output feedlines.
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Coelho, Vítor Manuel Sousa. "3D-Printed wide beamwidth lens antennas." Master's thesis, 2021. http://hdl.handle.net/10773/33655.

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The recent evolution of radio communications combined with innovative manufacturing techniques, such as 3D printing, has driven antennas development and implementation of new structures made of unusual materials. An example of this type of evolution are the lens antennas. Lens antennas are always associated with a source antenna (usually a microstrip patch antenna) and allow changing the source antenna’s radiation characteristics (varying the gain or directivity). Thus, lenses can improve the performance of some types of communication systems, such as phased arrays, which are used for beamforming. However, they have some limitations in coverage due to the array elements having low directivity. The use of a lens antenna changes the radiation diagram to obtain a wider beamwidth and is a potential solution to the problem of phased arrays. Throughout this dissertation, was studied the possibility of using lens antennas to change the radiation beam and increase the beamwidth of a simple microstrip patch antenna. For this purpose, simulations of several lens antenna structures were performed with a patch antenna (calibrated for 7.8GHz) to determine the array’s behavior and verify if it is possible to increase the beamwidth. One of the requirements to produce prototypes of lens antennas with 3D printing is knowing the electrical characteristics of the manufacturing materials (PLA, PETG, and nylon), more precisely, their dielectric constant. For that several samples of these materials were characterized considering different manufacturing conditions. The last step is the fabrication, by 3D printing, of prototype antennas using different materials and fabrication conditions. Nine lenses (six with a single material structure and three with several different materials) and seven patch antennas (five linearly polarized and two circularly polarized) were fabricated. Finally, was made a comparative study of the results obtained by simulation with the measurements performed in an anechoic chamber for both the patch antennas and the lens antenna array.
A recente evolução das radiocomunicações combinada com as inovadoras técnicas de fabrico, como a impressão 3D, impulsionaram o desenvolvimento e implementação de antenas com novas estruturas fabricadas com materiais incomuns. Um exemplo deste tipo de evolução são as antenas lente. As antenas lente estão sempre associadas a uma antena fonte (usualmente uma antena microstrip patch) e permitem alterar as caraterísticas de radiação (variar o ganho ou a directividade) da antena fonte. Assim, as lentes podem ser usadas para melhorar o desempenho de alguns tipos de sistema radiantes, como por exemplo o caso dos phased arrays, utilizados para fazer beamforming. No entanto, estes apresentam algumas limitações de cobertura, devido aos seus elementos do array terem ganho diretivo variável na zona de interesse. A utilização duma antena lente faz com que ocorra a alteração do diagrama de radiação de modo a obter uma maior largura de feixe podendo ser uma solução para referida limitação. Ao longo desta dissertação foi estudada a possibilidade de se utilizarem lentes para aumentar a largura de feixe de uma simples antena microstrip patch. Para isso, foram estudadas e realizadas simulações de várias estruturas de antenas lente com uma antena patch (calibrada para os 7.8GHz) com o intuito de determinar qual o comportamento do conjunto e verificar a possibilidade de tornar mais uniforme o diagrama de radiação no semi-espaço pretendido . A produção de protótipos de antenas lente com a impressão 3D requer o conhecimento das características elétricas dos materiais de fabrico (PLA, PETG e nylon), mais precisamente sua constate dielétrica. Para tal, foi feita uma caracterização de várias amostras desses materiais tendo em conta diferentes condições de fabrico. A última etapa foi a fabricação, por impressão 3D, de protótipos de antenas e lentes, utilizando diferentes materiais e condições de fabrico. No total foram fabricadas nove lentes (seis com uma estrutura de um único material e três com vários materiais distintos) e sete antenas patch (cinco de polarização linear e duas de polarização circular). Finalmente foi feito um estudo comparativo dos resultados obtidos por simulação com as medidas realizadas em câmara anecoica tanto para as antenas patch, como para o conjunto antena lente.
Mestrado em Engenharia Eletrónica e Telecomunicações
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Maza, Armando Rodriguez. "Inkjet-Printed Ultra Wide Band Fractal Antennas." Thesis, 2012. http://hdl.handle.net/10754/224731.

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In this work, Paper-based inkjet-printed Ultra-wide band (UWB) fractal antennas are presented. Three new designs, a combined UWB fractal monopole based on the fourth order Koch Snowflake fractal which utilizes a Sierpinski Gasket fractal for ink reduction, a Cantor-based fractal antenna which performs a larger bandwidth compared to previously published UWB Cantor fractal monopole antenna, and a 3D loop fractal antenna which attains miniaturization, impedance matching and multiband characteristics. It is shown that fractals prove to be a successful method of reducing fabrication cost in inkjet printed antennas while retaining or enhancing printed antenna performance.
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Book chapters on the topic "3D printed antenna"

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Kumar, Vinay, Rupinder Singh, Inderpreet Singh Ahuja, and Sanjeev Kumar. "4D Printed Smart Sensor, Actuators, and Antennas." In 3D Printing of Sensors, Actuators, and Antennas for Low-Cost Product Manufacturing, 123–36. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003194224-7.

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Thakur, Ekta, and Isha Malhotra. "Polymer-Based 3D Printed Sensors, Actuators, and Antennas for Low-Cost Product Manufacturing." In 3D Printing of Sensors, Actuators, and Antennas for Low-Cost Product Manufacturing, 61–86. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003194224-4.

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Tan, H. W., C. K. Chua, M. Uttamchand, and T. Tran. "Fully 3D printed horizontally polarised omnidirectional antenna." In Industry 4.0 – Shaping The Future of The Digital World, 161–66. CRC Press, 2020. http://dx.doi.org/10.1201/9780367823085-29.

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Sabban, Albert. "Wideband Systems with Energy Harvesting Units for 5G, Medical and Computer Industry." In Green Computing Technologies and Computing Industry in 2021. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95879.

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Demand for green energy is in tremendous growth in the last decade. The continuous growth in production of portable RF systems increase the consumption of batteries and electrical energy. Batteries and conventional electrical energy increase the environmental pollution. Compact wideband efficient antennas are crucial for energy harvesting commercial portable sensors and systems. Small antennas have low efficiency. The efficiency of 5G, IoT communication and energy harvesting systems may be improved by using wideband efficient antennas. Ultra-wideband portable harvesting systems are presented in this chapter. This chapter presents new Ultra-Wideband energy harvesting system and antennas in frequencies ranging from 0.15GHz to 18GHz. Three wideband antennas cover the frequency range from 0.15GHz to 18GHz. A wideband metamaterial antenna with metallic strips covers the frequency range from 0.15GHz to 0.42GHz. The antenna bandwidth is around 75% for VSWR better than 2.3:1. A wideband slot antenna covers the frequency range from 0.4GHz to 6.4GHz. A wideband fractal notch antenna covers the frequency range from 6GHz to 18GHz. Printed passive and active notch and slot antennas are compact, low cost and have low volume. The active antennas may be employed in energy harvesting portable systems. The antennas and the harvesting system components may be assembled on the same, printed board. The antennas bandwidth is from 75–200% for VSWR better than 3:1. The antennas gain is around 3 dBi with efficiency higher than 90%. The antennas electrical parameters were computed by using 3D electromagnetic software in free space and in vicinity of the human body. There is a good agreement between computed and measured results.
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Ali AbdElraheem, Mohammad, Mohamed Mamdouh M. Ali, Islam Afifi, and Abdel R. Sebak. "Ridge Gap Waveguide Beamforming Components and Antennas for Millimeter-Wave Applications." In Hybrid Planar - 3D Waveguiding Technologies. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.105653.

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With the improvement of mobile communication technologies and their broad applications, mobile communication will have more impact on our life. Such systems will support a variety of personal communication services with high-data rate and very low latency applications. To achieve such demands, many proposals associated with the development of 5G identify a set of requirements for which different technological directions are independently emerging. One direction is utilizing the millimeter-wave (mm-Wave) frequency bands where more spectrums are available. Millimeter-wave frequencies offer the advantage of physically smaller components that results in cost-effective RF transceivers and feasible large-scale integrated phased arrays. The smart RF transceivers of 5G along with the potential high-frequency innovative designs must satisfy the growing consumer and technology requirements. This implies utilizing the state-of-the-art guiding structures, especially printed ridge gap waveguide (PRGW), that have low loss and minimal dispersion compared with traditional PCB-based structures. The present chapter focuses on the necessary components for a beamforming antenna system which is implemented using PRGW technology. Millimeter wave antennas with different polarizations have been addressed. Power combining and dividing components have been also developed. These components have been used for integration in a complete beamforming antenna system working at an mm-Wave frequency band.
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Alkaraki, Shaker, James Kelly, and Yue Gao. "3D-printed millimetre-wave antennas with spray-coated metalization." In Antennas and Propagation for 5G and Beyond, 67–99. Institution of Engineering and Technology, 2020. http://dx.doi.org/10.1049/pbte093e_ch4.

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Conference papers on the topic "3D printed antenna"

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Lomakin, K., T. Pavlenko, M. Sippel, G. Gold, T. Weidner, K. Helmreich, M. Ankenbrand, and J. Franke. "3D Printed Helix Antenna." In 12th European Conference on Antennas and Propagation (EuCAP 2018). Institution of Engineering and Technology, 2018. http://dx.doi.org/10.1049/cp.2018.1034.

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Arya, Ravi Kumar, Shiyu Zhang, Yiannis Vardaxoglou, Will Whittow, and Raj Mittra. "3D-printed lens antenna." In 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting. IEEE, 2017. http://dx.doi.org/10.1109/apusncursinrsm.2017.8072046.

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Arya, Ravi Kumar, Shiyu Zhang, Yiannis Vardaxoglou, Will Whittow, and Raj Mittra. "3D-printed millimeter wave lens antenna." In 2017 10th Global Symposium on Millimeter-Waves (GSMM). IEEE, 2017. http://dx.doi.org/10.1109/gsmm.2017.7970303.

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Anwar, Muhammad S., and Axel Bangert. "3D printed microfluidics-based reconfigurable antenna." In 2017 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP). IEEE, 2017. http://dx.doi.org/10.1109/imws-amp.2017.8247364.

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Lomakin, K., M. Sippel, I. Ullmann, K. Helmreich, and G. Gold. "3D Printed Helix Antenna for 77GHz." In 2020 14th European Conference on Antennas and Propagation (EuCAP). IEEE, 2020. http://dx.doi.org/10.23919/eucap48036.2020.9135996.

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Christodoulides, A., K. Mitchell, and A. Feresidis. "3D Printed Artificial Anisotropic Antenna Substrates." In Antennas and Propagation Conference 2019 (APC-2019). Institution of Engineering and Technology, 2019. http://dx.doi.org/10.1049/cp.2019.0725.

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Cook, Kevin R., David K. Richardson, Justin K. Htay, James B. Dee, and Christopher T. Howard. "A 3D Printed Fragmented Aperture Antenna." In 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting. IEEE, 2019. http://dx.doi.org/10.1109/apusncursinrsm.2019.8888314.

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Hegazy, A. M., M. A. Basha, and S. Safavi-Naeini. "3D-Printed Scanning Dielectric Lens Antenna." In 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting. IEEE, 2019. http://dx.doi.org/10.1109/apusncursinrsm.2019.8889020.

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Tawk, Y., M. Chadoud, M. Fadous, E. Hanna, J. Costantine, F. Ayoub, and C. G. Christodoulou. "3D printed miniaturized quadrifilar helix antenna." In 2016 International Conference on Electromagnetics in Advanced Applications (ICEAA). IEEE, 2016. http://dx.doi.org/10.1109/iceaa.2016.7731467.

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Shamvedi, Deepak, Oliver J. McCarthy, Eoghan O'Donoghue, Paul O'Leary, and Ramesh Raghavendra. "3D metal printed sierpinski gasket antenna." In 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA). IEEE, 2017. http://dx.doi.org/10.1109/iceaa.2017.8065326.

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