Academic literature on the topic 'Reactive impedance substrate'

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Journal articles on the topic "Reactive impedance substrate"

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Полетаев, С. Д., та А. И. Любимов. "Особенности согласования нижнего электрода с высокочастотным генератором смещения при реактивно-ионном травлении массивных подложек". Журнал технической физики 91, № 4 (2021): 657. http://dx.doi.org/10.21883/jtf.2021.04.50630.271-20.

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This paper presents theoretical and experimental results on reactive ion etching of massive substrates in freon-14 with RF bias at the lower electrode. A hypothesis is proposed according to which a large-sized substrate violates the matching of the lower electrode with the RF generator by adding an additional reactive component to the impedance of the lower electrode. A numerical simulation of reactive ion etching with substrates of various sizes in a CF4 environment is performed . The simulation results showed a significant increase in the reactive component of RF power at the lower electrode
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Suraya, A. N., T. Sabapathy, M. Jusoh, et al. "Wearable antenna gain enhancement using reactive impedance substrate." Indonesian Journal of Electrical Engineering and Computer Science 13, no. 2 (2019): 708–12. https://doi.org/10.11591/ijeecs.v13.i2.pp708-712.

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A microstrip patch antenna is designed for a wearable antenna. The performance of microstrip patch antenna loaded with reactive impedance surface (RIS) is described in terms of gain, bandwidth and return loss. The antenna is investigated in two conditions which are conventional microstrip antenna with RIS and without RIS. The designed antenna is also aimed at size reduction therefore it will be suitable for a wearable application. This antenna which is made fully using textile and it is designed for operation in the 2.45 GHz band. The performance of microstrip patch antenna loaded with RIS is
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Suraya, A. N., T. Sabapathy, M. Jusoh, et al. "Wearable antenna gain enhancement using reactive impedance substrate." Indonesian Journal of Electrical Engineering and Computer Science 13, no. 2 (2019): 708. http://dx.doi.org/10.11591/ijeecs.v13.i2.pp708-712.

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A microstrip patch antenna is designed for a wearable antenna. The performance of microstrip patch antenna loaded with reactive impedance surface (RIS) is described in terms of gain, bandwidth and return loss. The antenna is investigated in two conditions which are conventional microstrip antenna with RIS and without RIS. The designed antenna is also aimed at size reduction therefore it will be suitable for a wearable application. This antenna which is made fully using textile and it is designed for operation in the 2.45 GHz band. The performance of microstrip patch antenna loaded with RIS is
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Mosallaei, H., and K. Sarabandi. "Antenna Miniaturization and Bandwidth Enhancement Using a Reactive Impedance Substrate." IEEE Transactions on Antennas and Propagation 52, no. 9 (2004): 2403–14. http://dx.doi.org/10.1109/tap.2004.834135.

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Sarabandi, K., A. M. Buerkle, and H. Mosallaei. "Compact Wideband UHF Patch Antenna on a Reactive Impedance Substrate." IEEE Antennas and Wireless Propagation Letters 5, no. 1 (2006): 503–6. http://dx.doi.org/10.1109/lawp.2006.886302.

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Samanta, Gopinath, Debasis Mitra, and Sekhar Ranjan Bhadra Chaudhuri. "Miniaturization of a patch antenna using circular reactive impedance substrate." International Journal of RF and Microwave Computer-Aided Engineering 27, no. 8 (2017): e21126. http://dx.doi.org/10.1002/mmce.21126.

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Roestorff, Martin, Johann W. Odendaal, and Johan Joubert. "Antenna with a reactive impedance substrate for mine rescue applications." Microwave and Optical Technology Letters 61, no. 1 (2018): 44–50. http://dx.doi.org/10.1002/mop.31541.

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Dmitriev, V. M., E. L. Kravchenko, M. N. Ofitserov, N. N. Prentslau, V. N. Svetlov, and V. B. Stepanov. "Temperature correlation of peculiarities of the impedance of a YBa2Cu3Ox film and an SrTiO3 substrate." Low Temperature Physics 19, no. 4 (1993): 318–20. https://doi.org/10.1063/10.0033410.

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Temperature correlation has been established between the anomalies of ohmic losses and the reactive response of a SrTiO3 substrate and a YBa2Cu3Ox film. Impedance peculiarities that are characteristic for the substrate and material of the film separately are not observed in bulk samples of YBa2Cu3Ox and in metallic films deposited on a SrTiO3 substrate.
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Kumar, Saurabh, and Dinesh Kumar Vishwakarma. "Miniaturized bent slotted patch antenna over a reactive impedance surface substrate." International Journal of Microwave and Wireless Technologies 8, no. 2 (2015): 347–52. http://dx.doi.org/10.1017/s1759078715000057.

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A reactive impedance surface (RIS) based miniaturized bent slotted patch antenna is proposed and investigated for S-band applications around 2.39 GHz. Bent slots in the patch reduce the patch antenna size by increasing current path on the patch. Further a RIS substrate with cross-shaped patch elements printed over a grounded dielectric is optimized and investigated for antenna miniaturization. The proposed bent slotted patch antenna over RIS substrate is 38.75% miniaturized with respect to traditional patch antenna at a fixed operating frequency. The proposed antenna reveals an overall volume
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Samanta, Gopinath, and Debasis Mitra. "Dual-Band Circular Polarized Flexible Implantable Antenna Using Reactive Impedance Substrate." IEEE Transactions on Antennas and Propagation 67, no. 6 (2019): 4218–23. http://dx.doi.org/10.1109/tap.2019.2905978.

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Dissertations / Theses on the topic "Reactive impedance substrate"

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Roestorff, Martin. "Design of an electronically small wearable antenna with a reactive impedance substrate operating at 433 MHz." Diss., University of Pretoria, 2017. http://hdl.handle.net/2263/62790.

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The primary objective of this investigation was the development of a design procedure for a compact wearable antenna operating at 433 MHz that can be used for finding lost miners in underground mines in emergency situations. To accomplish this objective the antenna was to have a relatively high gain of 5 dBi, and a compact size at less than 0.5 λ0 by 0.5 λ0, where λ0 is the wavelength of 433 MHz in a vacuum. The chosen solution was to use a basic antenna with a reactive impedance surface (RIS) reflector. As it was known beforehand that the final product would be large, and therefore expensive,
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Book chapters on the topic "Reactive impedance substrate"

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Kelly, M. J. "Silicon and silicon hetero junctions." In Low-Dimensional Semiconductors. Oxford University PressOxford, 1995. http://dx.doi.org/10.1093/oso/9780198517818.003.0014.

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Abstract Si dominates the electronics industry, being associated with more than 90 per cent of the added value in components and subsystems (Sze 1988), and if it were a direct-gap material as required for optical applications, the 111-V and other semiconductors would have remained curiosities. Compared with all other semiconductor materials, Si substrates come in large areas. They have high mechanical stability, modest electrical insulation, and a good thermal conductivity. The ease of forming a thin stable high-resistance thermally grown oxide which is capable of withstanding high electric fi
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Conference papers on the topic "Reactive impedance substrate"

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Battocchi, Dante, Alda Simoes, Gordon Bierwagen, Dennis Tallman, and Anthony Stamness. "The Use of Multiple Electrochemical Techniques to Characterize Mg-rich Primers for Al Alloys." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06250.

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Abstract To insure that the corrosion protective behavior of Mg-rich primers1 (MRPs) over Al aircraft alloys is properly understood, multiple electrochemical techniques have been utilized to characterize the behavior of this class of Cr-free coatings. To confirm that the MRPs did indeed provide cathodic, sacrificial protection to these alloys, the corrosion potential of the mixed Al-Mg system (Ecorrmixed),, the Open Circuit Potential (OCP), can be used to show when the potential of the alloy substrate is modified by contact with the Mg to yield a potential cathodic to the Al Alloy (Ecorralloy)
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Wilhelm, M., M. Reyes, A. Sushkova, et al. "Hexacyanoferrate-intercalated Layered Double Hydroxides as Solution for Detection of Early-stage Corrosion of Steel." In CORROSION 2021. AMPP, 2021. https://doi.org/10.5006/c2021-16740.

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Abstract The in-situ detection of corrosion and failures represents an important stage in the procedures of maintenance of metallic structures. The use of nanotechnology embedded in the protective coatings is a promising way to develop user-friendly and cost-effective corrosion detection systems and has to be explored by the coating industry. Several groups have already reported the use of coating systems containing pH indicators and fluorescent probes to detect the corrosion of the substrates. The interest of encapsulating these indicators to prevent undesired interactions and leaching from t
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Kim, Gyeong Rae, Sang Hyeok Lee, Hyang Yeon Song, and Jong Man Han. "Electrochemical Characterization of Epoxy Coated Steel under Cathodic Protection." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07013.

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Abstract Both organic coatings and SACP (Sacrificial Anode Cathodic Protection) system have been used to protect the steel surface from the corrosion in the water ballast tanks of ships and offshore structures. This study was aimed at the effectiveness of SACP added to the epoxy coated steels. It is also found that the EIS parameters would be represented electrochemical characteristics of epoxy coated steel with or without the artificial defect and under CP. Despite the intact coating, the epoxy coated steel is cathodically polarized below -0.79V/SCE by sacrificial anode after several hours fo
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Casanova, Luca, MariaPia Pedeferri, Gianluigi A. Botton, and Marco Ormellese. "Recent Advances on the Influence of Microstructural Characteristics on Corrosion Resistance in H2SO4 of Anodized Titanium." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-17589.

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Abstract Commercially pure titanium has been anodized with the use of a pulsed signal in unipolar regime, with 25 % of anodic contribution at low frequency (20 Hz). This anodizing regime can effectively enhance thickness and crystallinity of the barrier region directly in contact with the metallic substrate. The latter condition will be particularly advantageous for corrosion resistance enhancement in strong reducing acidic environment, as concentrated hot sulfuric acid (10 %v/v at 60°C). Corrosion response has been investigated through the use of Electrochemical Impedance Spectroscopy (EIS) a
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Samanta, Gopinath, Dhrubajyoti Bhattacharya, Debasis Mitra, and Sekhar Ranjan Bhadra Chaudhuri. "Miniaturized CPW-fed slot antenna using reactive impedance substrate." In 2015 IEEE Applied Electromagnetics Conference (AEMC). IEEE, 2015. http://dx.doi.org/10.1109/aemc.2015.7509247.

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Jaeck, V., and L. Bernard. "Design of an enhanced patch array on a Reactive Impedance Substrate." In 2013 International Workshop on Antenna Technology (iWAT). IEEE, 2013. http://dx.doi.org/10.1109/iwat.2013.6518339.

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Vallecchi, A., F. Capolino, J. De Luis, and F. De Flaviis. "A low profile folded dipole antenna on a reactive high impedance substrate." In 2009 International Conference on Electromagnetics in Advanced Applications (ICEAA). IEEE, 2009. http://dx.doi.org/10.1109/iceaa.2009.5297786.

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Wong, Tsz-Ming, Kwai-Man Luk, and Kin-Fai Tong. "Miniaturized Via-Free Magneto-Electric Dipole Antenna Fed by Substrate Integrated Coaxial Line on Reactive Impedance Surface." In 2023 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM). IEEE, 2023. http://dx.doi.org/10.1109/iwem58222.2023.10234803.

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Cleveland, Jerika, Dipankar Mitra, Jacob Lewis, Benjamin D. Braaten, Jeffery Allen, and Monica Allen. "On the Placement of Particle Containing Cylindrical Cavities in a Grounded Dielectric Substrate to Change the Impedance of a Printed Reactive Surface." In 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting. IEEE, 2019. http://dx.doi.org/10.1109/apusncursinrsm.2019.8888877.

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Singh, Indrasen, Vijay Shanker Tripathi, and Sudarshan Tiwari. "Compact circularly-polarized microstrip patch antenna on Reactive Impedance Substrates." In 2012 International Conference on Computers and Devices for Communication (CODEC). IEEE, 2012. http://dx.doi.org/10.1109/codec.2012.6509187.

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