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Journal articles on the topic 'Shield with Antenna'

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1

Chung, Ming-An, Ming-Chang Lee, and Cheng-Wei Hsiao. "Antenna Systems in Medical Masks: Applications for 5G FR1 and Wi-Fi 7 Wireless Systems." Electronics 11, no. 13 (2022): 1983. http://dx.doi.org/10.3390/electronics11131983.

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This paper proposes a small antenna system (47 mm × 8 mm × 0.2 mm) to be used in a medical mask. The medical mask is composed of a frame and shield. The frame is made of polycarbonate (PC), and the shield is made of polyethylene terephthalate (PET). The author sets two groups of antennas on the upper side of the frame and sets two other groups of antennas on the sides facing away from the face of the shield. The substrates of the four antennas are all FR4 (εr = 4.4, tanδ = 0.02), so the first antenna type is a combination of PC and FR4, and the second antenna type is a combination of PET and F
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2

Yang, Bill, Alexander G. Yarovoy, A. Shenario Ezil Valavan, Koen Buisman, and Oleksiy Shoykhetbrod. "A novel LTCC differentially Fed UWB antenna for the 60 GHz band." International Journal of Microwave and Wireless Technologies 3, no. 2 (2011): 171–77. http://dx.doi.org/10.1017/s1759078711000237.

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In this paper a novel differentially fed Ultra-Wide Band (UWB) antenna in low-temperature co-fired ceramics (LTCC) technology to be used in the 60 GHz band for integrated RF front-ends is presented. The antenna is based on the aperture stacked patch fed via H-shaped aperture to achieve more than 10 GHz operational bandwidth. The antenna is fed by a parallel-wire transmission line which enables the antenna to be directly integrated with differential Monolithic Microwave Integrated Circuits (MMICs). To alleviate influence of the surface waves (efficiently excited in LTCC material due to its high
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3

Elakesh, Safa E., Wesal A. Alhrash, and Hisham Ayad. "Performance Evaluation of Microstrip Antenna for EM Absorption Reduction in Human Tissues at 5G Bands." University of Zawia Journal of Engineering Sciences and Technology 1, no. 1 (2024): 130–40. http://dx.doi.org/10.26629/uzjest.2023.12.

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The absorption of electromagnetic waves emitted by wireless devices in human tissues is quantified by the Specific Absorption Rate (SAR) measured for 1g or 10g of body tissues. The primary objective of this research is to identify an effective shield material that can minimize the impact and potential harm of electromagnetic waves on human tissues. The study involves the design of a single radiator Microstrip antenna operating at 28 GHz and the modelling of human tissue layers. SAR calculations for 1g of body tissues are performed based on the distance between the antenna and the head model. T
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4

Cattanei, G., and the W7-AS Team. "Resonant Faraday shield ICRH antenna." Nuclear Fusion 42, no. 5 (2002): 541–46. http://dx.doi.org/10.1088/0029-5515/42/5/306.

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5

Zhao, Qiang, Shi Rui Peng, Bing Qie Wang, and Chang Wen Zheng. "Electromagnetism Compatibility Design of an Interference Antenna." Advanced Materials Research 588-589 (November 2012): 906–11. http://dx.doi.org/10.4028/www.scientific.net/amr.588-589.906.

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Aiming at electromagnetism efficiency evaluation of large ground interference antenna is complex, the paper proposes to model and simulate it by FEKO and then the radiation pattern of the antenna can be obtained. The simulation result is conform to the fact. In view of the large power of the vice and back orientation of antenna from the simulation, adopt the method of installing electromagnetism shield wall to solve. Through the simulation shows the efficiency of electromagnetism shield wall in improving antenna’s electromagnetism compatibility.
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6

Rosu, G., V. Velicu, A. Boitan, G. Mihai, L. Tuta, and O. Baltag. "On the electromagnetic shielding properties of carbon fiber materials." Electrical Engineering & Electromechanics, no. 1 (February 17, 2022): 38–43. http://dx.doi.org/10.20998/2074-272x.2022.1.05.

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Introduction. Due to the good electrical and thermal properties of carbon, carbon-based materials represent a major trend is various applications, including electromagnetic compatibility. Among carbon-based materials, graphite-impregnated woven fabrics represent a new trend in the field of electromagnetic shielding, with the perspective of being used for protective clothing. The novelty of the proposed work consists in the exhaustive comparative analysis of various carbon-based sample shields by employing both simulation and experimental methods. The selected configurations included a simple g
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7

Ja’afar, Hajar, M. T. Ali, A. N. Dagang, H. M. Zali, and N. A. Halili. "A Reconfigurable Monopole Antenna with Fluorescent Tubes by Using Plasma Windowing Concepts at 4.9GHz." Advanced Materials Research 905 (April 2014): 432–35. http://dx.doi.org/10.4028/www.scientific.net/amr.905.432.

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This research aimed at investigating the performance of plasma windowing concept in terms of radiation pattern, gain and return loss. The antenna structure consists of 12 tubes of commercial fluorescent lamps that containing the mixture of mercury vapour and argon gas which upon electrification, forms plasma. After get sufficient voltage the gas inside the fluorescent tube will ionize to plasma and formed plasma column. When all of the tubes surrounding the antenna are electrified, the radiation is trapped inside. By leaving one or more of the tubes in a non-electrified state, apertures are fo
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8

Rauner, David, Dominikus Zielke, Stefan Briefi, and Ursel Fantz. "Impact of Internal Faraday Shields on RF Driven Hydrogen Discharges." Plasma 5, no. 3 (2022): 280–94. http://dx.doi.org/10.3390/plasma5030022.

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At RF plasma reactors operated at high power, internal Faraday shields are required to shield dielectric vessel or windows from erosion due to isotropic heat and particle fluxes. By utilizing a flexible and diagnostically well-equipped laboratory setup, crucial effects that accompany the application of internal Faraday shields at low-pressure hydrogen (and deuterium) RF discharges are identified and quantified in this contribution. Both an inductively coupled plasma (ICP) utilizing a helical coil and a low-field helicon discharge applying a Nagoya-type III antenna at magnetic fields of up to 1
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9

Alibakhshikenari, Mohammad, Bal Singh Virdee, Chan H. See, Raed A. Abd-Alhameed, Francisco Falcone, and Ernesto Limiti. "High-Isolation Leaky-Wave Array Antenna Based on CRLH-Metamaterial Implemented on SIW with ±30o Frequency Beam-Scanning Capability at Millimetre-Waves." Electronics 8, no. 6 (2019): 642. http://dx.doi.org/10.3390/electronics8060642.

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The paper presents a feasibility study on the design of a new metamaterial leaky-wave antenna (MTM-LWA) used in the construction of a 1 × 2 array which is implemented using substrate-integrated waveguide (SIW) technology for millimetre-wave beamforming applications. The proposed 1 × 2 array antenna consists of two LWAs with metamaterial unit-cells etched on the top surface of the SIW. The metamaterial unit-cell, which is an E-shaped transverse slot, causes leakage loss and interrupts current flow over SIW to enhance the array’s performance. The dimensions of the LWA are 40 × 10 × 0.75 mm3. Mut
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10

G., Rosu, Velicu V., Boitan A., Mihai G., Tuta L., and Baltag O. "On the electromagnetic shielding properties of carbon fiber materials." Electrical Engineering & Electromechanics, no. 1 (February 17, 2022): 38–43. https://doi.org/10.20998/2074-272X.2022.1.05.

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<strong><em>Introduction.</em></strong><em>&nbsp;Due to the good electrical and thermal properties of carbon, carbon-based materials represent a major trend is various applications, including electromagnetic compatibility. Among carbon-based materials, graphite-impregnated woven fabrics represent a new trend in the field of electromagnetic shielding, with the perspective of being used for protective clothing.&nbsp;<strong>The novelty&nbsp;</strong>of the proposed work consists in the exhaustive comparative analysis of various carbon-based sample shields by employing both simulation and experim
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11

Randolph, J., J. Ayon, R. Dirling, et al. "The solar probe shield/antenna materials characterization." Carbon 37, no. 11 (1999): 1731–39. http://dx.doi.org/10.1016/s0008-6223(99)00051-2.

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12

Whealton, J. H., P. M. Ryan, and R. J. Raridon. "ICRF antenna Faraday shield plasma sheath model." Fusion Engineering and Design 12, no. 1-2 (1990): 121–26. http://dx.doi.org/10.1016/0920-3796(90)90072-e.

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13

Bakry, Mostafa, and Ludger Klinkenbusch. "Application of Kramers-Kronig transformations to increase the bandwidth of small antennas." Advances in Radio Science 17 (September 19, 2019): 65–70. http://dx.doi.org/10.5194/ars-17-65-2019.

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Abstract. The internally stored electric energy (Q-energy) of a disk monopole antenna increases as compared to a monopole antenna without a top disk. Recently it was shown that the Q-energy can be significantly reduced and the bandwidth increased by shielding the disk monopole antenna using a thin magnetic material. In the present paper we consider the same structure to explain another method to increase the bandwidth by using a shield made of dispersive magnetic material. We apply the Kramers-Kronig transforms to derive physically correct real and imaginary parts of the dispersive magnetic ma
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14

Denisov, D. V., and A. A. Tangamyan. "Special beamforming by means of a semi-spherical Lüneburg lens." Journal of «Almaz – Antey» Air and Space Defence Corporation, no. 2 (June 23, 2021): 28–34. http://dx.doi.org/10.38013/2542-0542-2021-2-28-34.

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The paper considers a semi-spherical Lüneburg lens with a conductive shield. In certain conditions a lens of such design may form radiation patterns without the side lobe or cosecant-type patterns. Such radiation patterns can be formed by controlling the following parameters: antenna feed angle, conductive shield diameter, dielectric substrate thickness. The paper focuses on particular cases of obtaining special-type radiation patterns.
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15

Sawaya, K., and S. Adachi. "A Cutoff Waveguide Aperture Antenna With Faraday Shield." Journal of Electromagnetic Waves and Applications 6, no. 7 (1992): 865–80. http://dx.doi.org/10.1163/156939392x01480.

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16

Hamse, Abdillahi Haji Omer, Norlyana Azemi Saidatul, Abdullah Al-Hadi Azremi, Jack Soh Ping, and Faizal Jamlos Mohd. "Structural Health Monitoring Sensor based on a Flexible Microstrip Patch Antenna." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 3 (2018): 917–24. https://doi.org/10.11591/ijeecs.v10.i3.pp917-924.

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A microstrip patch antenna strain sensor operating at dual frequencies 1.8GHz and 2.4GHz have been designed based on the relation between the resonant frequency and the strain applied to it. Felt substrate with a height of 3mm and dielectric constant of 1.44 and shield conductor are used for the design of this antenna. Testing results show that the resonant frequency of the microstrip patch antenna is 1.78 GHz and 2.4 GHz, which agrees with the simulation. The resonant frequency of the microstrip patch antenna increases linearly with the increase of the applied strain. This microstrip patch an
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17

Shi, Zhaoqiang, and Zhuang Ma. "Analysis of influence of the solar window’s thermal characteristics on thermal stability of optical communication antennas." Thermal Science 25, no. 4 Part B (2021): 3041–51. http://dx.doi.org/10.2298/tsci2104041s.

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Space laser communication optical antennas have very high requirements for the stability and uniformity of the temperature field. The GEO satellite-borne laser communication is affected by the violent alternating solar heat flow, which causes the thermal disturbance of the in-orbit temperature field of the extra-satellite optical antenna to become unstable. Reduce optical communication time. For this reason, the paper proposes a ?sun window? as a solar spectral filter device to shield solar radiation, combined with the thermal design of the optical antenna system, based on thermal simulation a
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18

Mrs., Nisha S. L., and Gupta Shivam. "HEALTH MONITORING MASK WITH WEARABLE ANTENNA TECHNOLOGY." INTERNATIONAL EDUCATIONAL JOURNAL OF SCIENCE AND ENGINEERING - IEJSE 7, no. 10 (2024): 23–27. https://doi.org/10.5281/zenodo.15608670.

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The development of a health monitoring mask with wearable antenna technology is implemented in this paper. For the transmission and reception of data for systems connected to healthcare, wireless body area networks are employed, including the usage of wearable antennas. A micro strip patch antenna is designed which is integrated on the mask, this will help in transmitting the data. Also, a temperature sensor and a pulse sensor are integrated on the mask along with the antenna. These sensors are in turn connected to a Arduino UNO microcontroller, to which these sensors send the data and this mi
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19

Gao, Yin Han, Jun Jie Gu, Kai Yu Yang, Ji Zhi Li, and Hang Zhang. "Study on the Aperture Leakage EMI Problems and its Simulation." Applied Mechanics and Materials 239-240 (December 2012): 274–77. http://dx.doi.org/10.4028/www.scientific.net/amm.239-240.274.

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In the design and production process of car’s electronic equipment, the SE of the shield is reduced greatly for the existence of aperture.There is a modeling analysis to the aperture leakage EMI problems and derived a numerical calculation formula of the SE influenced by aperture leakage based on the slot antenna theory, also put forward the way to increase the SE of the shield by using Matlab software to simulate the SE of the shield with three regular apertures in different interference frequency. The simulation results have universal utility and which can provide data support for the design
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20

Haji Omer, Hamse Abdillahi, Saidatul Norlyana Azemi, Azremi Abdullah Al-Hadi, Ping Jack Soh, and Mohd Faizal Jamlos. "Structural Health Monitoring Sensor based on A Flexible Microstrip Patch Antenna." Indonesian Journal of Electrical Engineering and Computer Science 10, no. 3 (2018): 917. http://dx.doi.org/10.11591/ijeecs.v10.i3.pp917-924.

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&lt;span&gt;A microstrip patch antenna strain sensor operating at dual frequencies 1.8GHz and 2.4GHz have been designed based on the relation between the resonant frequency and the strain applied to it. Felt substrate with a height of 3mm and dielectric constant of 1.44 and shield conductor are used for the design of this antenna. Testing results show that the resonant frequency of the microstrip patch antenna is 1.78 GHz and 2.4 GHz, which agrees with the simulation. The resonant frequency of the microstrip patch antenna increases linearly with the increase of the applied strain. This microst
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21

Barro, Oumar Alassane, Mohamed Himdi, and Olivier Lafond. "Reconfigurable Patch Antenna Radiations Using Plasma Faraday Shield Effect." IEEE Antennas and Wireless Propagation Letters 15 (2016): 726–29. http://dx.doi.org/10.1109/lawp.2015.2470525.

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22

Santón, Pablo, Ruth De los Reyes, and Juan Vicente Balbastre. "Cavity Backed Slot Antenna Fed by a Stripline with SIW Structure and Vertical Coaxial Transition for Microwave Solid-State Heating Applications." Electronics 11, no. 3 (2022): 327. http://dx.doi.org/10.3390/electronics11030327.

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This paper presents a new approach to feed multimode cavities used as microwave applicators for industrial and domestic microwave ovens using solid-state sources operating in the 2.45 GHz ISM (Industrial, Scientific and Medical) band (commonly used for industrial microwave applications). The feeding structure consists of a slot on the top side of the applicator cavity. The slot is fed by a shielded asymmetric stripline with a Substrate Integrated Waveguide structure (to preserve the stripline Transversal Electro-Magnetic (TEM) operation within the shield) and is N-connectorized. A first design
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23

Zhang, Jian, Xiaoxing Zhang, and Song Xiao. "Antipodal Vivaldi Antenna to Detect UHF Signals That Leaked Out of the Joint of a Transformer." International Journal of Antennas and Propagation 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/9627649.

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In recent years, extensive research has been conducted on the ultrahigh-frequency (UHF) method. Considering that acquiring a partial discharge UHF signal is the first step in a series of tasks, such as fault diagnosis and defect location, the UHF sensor plays an important role in the UHF method. An antipodal Vivaldi antenna installed at a transformer’s joint is designed in this study according to the structural features of 750 kV transformers in China. Several effective structures, such as linear gradient microstrip and slot edge, are employed to improve the return loss and radiation character
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24

Xu, Jie, and Wenbin Dou. "Application of Novel Printed Dipole Antenna to Design Broadband Planar Phased Array." International Journal of Antennas and Propagation 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/946763.

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A broadband planar phased array consisting of 22 linear printed dipole antennas (PDA) is presented in this paper. The element is designed by a coax probe feeding mechanism with a ground plate configuration. The PDA with two arms placed on both sides of a substrate is realized. The inner conductor of the coaxial cable is connected to the PDA’s upper arm, and the outer conductor is connected to the PDA’s lower arm, so it eliminates the balun. The impedance bandwidth of the PDA array can be improved by increasing mutual coupling effect between the adjacent array elements. A dielectric layer, whic
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Kim, Hoyoung, and Vijay Harid. "Numerical Modeling of Nondestructive Testing of Various Conductive Objects inside Metal Enclosures Using ELF/VLF Magnetic Fields." Applied Sciences 11, no. 8 (2021): 3665. http://dx.doi.org/10.3390/app11083665.

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Nondestructive evaluation of various conductive objects through metal enclosures is investigated by using ELF/VLF magnetic induction fields in detailed simulations. ELF/VLF magnetic fields (&lt;30 kHz) have a unique ability to penetrate highly conductive or permeable shields. Using a magnetic dipole source antenna, objects hidden inside a metal enclosure are imaged via examining distortions to the field outside the enclosure. The field distortion is parametrically studied by varying the size, conductivity, and permeability of the hidden objects. Furthermore, the importance of the conductivity
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26

Chen, Longlong, Feng Ning, and Chongqing Jiao. "Research on the influence of screw spacing on magnetic shielding effectiveness of a shielding cabin." E3S Web of Conferences 185 (2020): 01083. http://dx.doi.org/10.1051/e3sconf/202018501083.

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Large shields are usually formed by splicing small pieces of metal, resulting in gaps that affect the shielding effectiveness of the shield. Affected by the screw fixed spacing, the size of the slits will also be changed. Since it is difficult to deduce the influence of fixed spacing on shielding effectiveness by theoretical formula or software simulation, we built a 2m*2m*2m shielding cabin model and explored the influence of fixed spacing on shielding effectiveness by changing the fixed spacing of screws. During measurement, the selected frequency range was 0.25-1000MHz. In the selected freq
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27

Sandhya, Mallavarapu, and Prof Lokam Anjaneyulu. "Robust, Efficient and Low Profile Fractal Enabled EBG Incorporated Wearable Antenna for WLAN Standards." Defence Science Journal 72, no. 3 (2022): 429–40. http://dx.doi.org/10.14429/dsj.72.17674.

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A compact, robust Koch fractal combined triangular monopole antenna incorporated with a Sierpinski fractal EBG unit cell array is proposed for integral solutions of wearable devices in WLAN standards. The fractal enabled EBG-Antenna has a modified triangular microstrip that acts as a radiator and a 2X2 array of Sierpinski square EBG unit cells as a reflective surface to enhance the performance also as a shield linking the antenna and human body. The proposed antenna demonstrations and impedance match bandwidth of 32 MHz, a gain of 7.86 dBi, Front to back ratio of 13 dB, Radiation Efficiency of
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28

Gorobets, N. N., and N. P. Yeliseyeva. "METALLIC SHIELD INFLUENCE ON THE RESONANT LENGTH OF A WIRE ANTENNA." Telecommunications and Radio Engineering 69, no. 13 (2010): 1137–52. http://dx.doi.org/10.1615/telecomradeng.v69.i13.20.

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29

Ochi, Hisaaki, Etsuji Yamamoto, Kunio Sawaya, and Saburo Adachi. "Analysis of a magnetic resonance imaging antenna inside an RF shield." Electronics and Communications in Japan (Part I: Communications) 77, no. 1 (1994): 37–45. http://dx.doi.org/10.1002/ecja.4410770104.

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30

Park, Donghee, Jihwan Jeon, and Hyeongdong Kim. "Antenna sensitivity variation depending on the installation of a shield can." Microwave and Optical Technology Letters 62, no. 6 (2020): 2311–15. http://dx.doi.org/10.1002/mop.32291.

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31

Penta, Ashok Kumar, та Ch R. Phani Kumar. "A Novel PIFA Design for SAR Reduction in 5G Networks to Analyze the RF Shield Ιmpact". Engineering, Technology & Applied Science Research 14, № 3 (2024): 14102–8. http://dx.doi.org/10.48084/etasr.7184.

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Fifth Generation (5G) Technology, representing the latest advancement in wireless communication networks, has brought attention to the rising concerns regarding Specific Absorption Rate (SAR) due to temperature fluctuations. The negative impacts of SAR, particularly in the context of mobile users' head exposure, have prompted the exploration of effective mitigation strategies. This article introduces a novel approach, employing a Planar Inverted F-Antenna (PIFA) operating at 26 GHz, with the integration of RF shields, specifically a flexible ferrite sheet and a foam absorber, aimed at reducing
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32

Daghari, Marwa, and Hedi Sakli. "Radiation performance enhancement of an ultra wide band antenna using metamaterial band-pass filter." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 6 (2020): 5861. http://dx.doi.org/10.11591/ijece.v10i6.pp5861-5870.

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In this paper, a metamaterial structure based on Frequency Selective Surface (FSS) cell is proposed to achieve an isotropic band-pass filtering response. This filter consists of a planar layer formed by a 3×3 metamaterials cell array with transmittive filtering behavior at 3.5 GHz. This design with 45 mm × 45 mm dimension is then integrated in close proximity at distance of 10 mm with an Ultra Wide Band (UWB) antenna to enhance it’ s performances around a 3.5 GHz operating frequency. Simulation results ensure that filter geometry provides the advantage of polarization independency and also exh
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Marwa, Daghari, and Sakli Hedi. "Radiation performance enhancement of an ultra wide band antenna using metamaterial band-pass filter." International Journal of Electrical and Computer Engineering (IJECE) 10, no. 6 (2020): 5861–70. https://doi.org/10.11591/ijece.v10i6.pp5861-5870.

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In this paper, a metamaterial structure based on frequency selective surface (FSS) cell is proposed to achieve an isotropic band-pass filtering response. This filter consists of a planar layer formed by a 3&times;3 metamaterials cell array with transmittive filtering behavior at 3.5 GHz. This design with 45&times;45 mm dimension is then integrated in close proximity at distance of 10 mm with an ultra wide band (UWB) antenna to enhance it&rsquo; s performances around a 3.5 GHz operating frequency. Simulation results ensure that filter geometry provides the advantage of the angular stability up
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Aliakbarian, Hadi, Azadeh Hajiahmadi, Nordiana Mohamad Saaid, and Ping Jack Soh. "Evaluation of a Textile PIFA for Wearable IoT Application and its Challenges." ECTI Transactions on Computer and Information Technology (ECTI-CIT) 15, no. 3 (2021): 289–302. http://dx.doi.org/10.37936/ecti-cit.2021153.241779.

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The ever increasing use of body-worn systems in the Internet of Things application such as needs better antenna subsystem designs compatible with its requirements. Several challenges limiting the performance of a body-worn system, from materials, and environmental conditions to the effects of on body application and its hazards are discussed. As a test case, a flexible textile planar inverted-F antenna is presented and discussed. The choice of this topology is due to its simplicity in design and fabrication, relatively broad bandwidth and the presence of a rear ground plane, which minimizes th
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Kuzin, A. A., A. V. Miakinkov, and S. A. Shabalin. "Design Features of Antenna Arrays of Automotive Radars Based on Transmitting and Receiving Multi-Element Modules." Journal of the Russian Universities. Radioelectronics 24, no. 3 (2021): 39–48. http://dx.doi.org/10.32603/1993-8985-2021-24-3-39-48.

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Introduction. Modern vehicles are equipped with radars, which serve as the main sensors of driver assistance systems detecting objects in all weather conditions. Antenna arrays (AA) are the most common type of radar antennas. The coefficient of mutual coupling between adjacent antenna channels has a significant effect on the formed radiation pattern (RP) of an AA. This aspect is important for achieving the required values of gain and side-lobe level (SLL). This article analyses the effect of the proposed design solutions on the main parameters of an automotive radar AA, in particular, on the m
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36

Roudjane, Mourad, Mazen Khalil, Amine Miled, and Younés Messaddeq. "New Generation Wearable Antenna Based on Multimaterial Fiber for Wireless Communication and Real-Time Breath Detection." Photonics 5, no. 4 (2018): 33. http://dx.doi.org/10.3390/photonics5040033.

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Smart textiles and wearable antennas along with broadband mobile technologies have empowered the wearable sensors for significant impact on the future of digital health care. Despite the recent development in this field, challenges related to lack of accuracy, reliability, user’s comfort, rigid form and challenges in data analysis and interpretation have limited their wide-scale application. Therefore, the necessity of developing a new reliable and user friendly approach to face these problems is more than urgent. In this paper, a new generation of wearable antenna is presented, and its potent
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37

Fujii, Tsuneyuki, Mikio Saigusa, Yoshitaka Ikeda, Haruyuki Kimura, Teruhisa Hirashima, and Munenori Uehara. "Joule Loss on a Faraday Shield of JT-60 ICRF Test Antenna." Japanese Journal of Applied Physics 27, Part 1, No. 12 (1988): 2378–82. http://dx.doi.org/10.1143/jjap.27.2378.

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38

Peng, Ming, Dengyi Wang, Liu Liu, Zhenming Shi, Jian Shen, and Fuan Ma. "Recent Advances in the GPR Detection of Grouting Defects behind Shield Tunnel Segments." Remote Sensing 13, no. 22 (2021): 4596. http://dx.doi.org/10.3390/rs13224596.

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Injecting grout into the gaps between tunnel shield segments and surrounding rocks can reduce ground subsidence and prevent ground water penetration. However, insufficient grouting and grouting defects may cause serious geological disasters. Ground penetrating radar (GPR) is widely used as a nondestructive testing (NDT) method to evaluate grouting quality and determine the existence of defects. This paper provides an overview of GPR applications for grouting defect detection behind tunnel shield segments. State-of-the-art methodologies, field cases, experimental tests and signal processing met
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39

Fujii, T., M. Saigusa, H. Kimura, et al. "Performance of the JT-60 ICRF antenna with an open type Faraday shield." Fusion Engineering and Design 19, no. 3 (1992): 213–23. http://dx.doi.org/10.1016/0920-3796(92)90031-x.

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Federis Montañez, John Joshua, James Alipante Vargas, Mary Grace Francisco Palibino, Rustom Jim Esplana Rebedorial, and Louise Deanna Bio Borilla. "Self-steering Yagi-Uda antenna positioning system for television." International Journal of Electrical and Computer Engineering (IJECE) 14, no. 1 (2024): 435. http://dx.doi.org/10.11591/ijece.v14i1.pp435-442.

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The aim of this study is to develop a prototype that automatically improves the position of a Yagi-Uda antenna using a microcontroller and to illustrate its radiation pattern through the use of MATLAB&lt;sup&gt;®&lt;/sup&gt;. This study is intended for students and professors in the electronics engineering field. This served as their educational materials for teaching antenna system principles and theories. Developmental and experimental methods were used to achieve the objectives. The materials and components generally used in this study are a Yagi-Uda antenna, stepper motor, Arduino Uno, L29
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Zhu, Fu Min, Ya Fei Li, and Quan Gan. "Research on Signal Transfer of GPR Used in Frontal Detecting of Tunnel Construction." Applied Mechanics and Materials 307 (February 2013): 75–78. http://dx.doi.org/10.4028/www.scientific.net/amm.307.75.

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At first, this paper discusses the unfavorable environment where a tunnel is constructed by shield machine. As a novel solution, GPR is employed to detect some undesirable obstacles or geological conditions to ensure a smooth tunnel construction. After a brief introduction about the implementation of the detecting system, this paper raises the problem about the signal transferring between the antenna and the GPR body, and between the GPR and the control computer, which are far away arranged each other in two different cabins with relative rotating motion and under a very difficult connection c
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Sato, Y., K. Sawaya, and S. Adachi. "Faraday shield effects on a half-turn loop antenna used for ICRF plasma heating." IEEE Transactions on Plasma Science 16, no. 5 (1988): 574–80. http://dx.doi.org/10.1109/27.8968.

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MATSUGATANI, K. "Surface Wave Distribution over Electromagnetic Bandgap (EBG) and EBG Reflective Shield for Patch Antenna." IEICE Transactions on Electronics E88-C, no. 12 (2005): 2341–49. http://dx.doi.org/10.1093/ietele/e88-c.12.2341.

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Woo, Myung-Kyun, Suk-Min Hong, Jongho Lee, et al. "Extended Monopole antenna Array with individual Shield (EMAS) coil: An improved monopole antenna design for brain imaging at 7 tesla MRI." Magnetic Resonance in Medicine 75, no. 6 (2015): 2566–72. http://dx.doi.org/10.1002/mrm.25837.

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Ogawa, Toshihide, Mikio Saigusa, Hisato Kawashima, and Sadayoshi Kanazawa. "Coupling and Heating Experiments Using Fast Wave Antenna with Back Faraday Shield on JFT-2M." Fusion Technology 39, no. 1T (2001): 305–8. http://dx.doi.org/10.13182/fst01-a11963467.

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Van Nieuwenhove, R., R. Koch, G. Van Oost, et al. "Ion cyclotron resonance heating of a tokamak plasma using an antenna without a Faraday shield." Nuclear Fusion 31, no. 9 (1991): 1770–74. http://dx.doi.org/10.1088/0029-5515/31/9/016.

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Louche, F., P. Dumortier, F. Durodié, and A. Messiaen. "Influence of the blanket shield modules geometry on the operation of the ITER ICRF antenna." Fusion Engineering and Design 88, no. 6-8 (2013): 926–29. http://dx.doi.org/10.1016/j.fusengdes.2013.01.011.

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Ryan, P. M., K. E. Rothe, J. H. Whealton, and T. D. Shepard. "Determination of ICRF antenna fields in the vicinity of a 3-D Faraday shield structure." Fusion Engineering and Design 12, no. 1-2 (1990): 37–42. http://dx.doi.org/10.1016/0920-3796(90)90062-b.

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Caughman, J. B. O., D. N. Ruzic, D. J. Hoffman, R. A. Langley, and M. B. Lewis. "Ion energy measurements at the surface of an ion cyclotron range of frequencies antenna Faraday shield." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 8, no. 6 (1990): 4011–16. http://dx.doi.org/10.1116/1.576437.

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Tsuboi, M., N. Kaifu, H. Karoji, et al. "The Future Japanese CBR Anisotropy Observatory at the Moon." Highlights of Astronomy 11, no. 2 (1998): 992–95. http://dx.doi.org/10.1017/s1539299600019407.

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AbstractWe have a plan to a radioastronomy mission at the Moon. This is dedicated to the mapping of the CBR anisotropy in order to study the properties of the early Universe, especially galaxy formation. This is a candidate for the Moon mission of NASDA, launched by an HIIA Rocket. The mission carries an 1.5 m (min.) offset parabola antenna with radiation shield to the north polar region of the Moon. This will observe CBR anisotropy at three (min.) frequencies between 30 to 90 GHz. The angular resolution is 9’ at 90 GHz. The telescope will observe the donut-shaped sky between 5 to 30 degree (n
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