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Journal articles on the topic 'RF shielding'

Author: Grafiati

Published: 3 June 2025

Last updated: 20 July 2025

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1

Masuzawa, M., A. Terashima, K. Tsuchiya, and R. Ueki. "Magnetic shielding for superconducting RF cavities." Superconductor Science and Technology 30, no. 3 (2017): 034009. http://dx.doi.org/10.1088/1361-6668/aa570b.

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2

He, Youliang. "Wireless Corrosion Monitoring Sensors Based on Electromagnetic Interference Shielding of RFID Transponders." Corrosion 76, no. 4 (2020): 411–23. http://dx.doi.org/10.5006/3384.

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Electromagnetic interference (EMI) shielding is a common technology used to protect electronic devices from the interference of environmental noise or to prevent the radiation of electromagnetic waves from electronic devices to the environment. In this research, the EMI shielding principle was utilized to develop a simple and cost-effective wireless corrosion-monitoring sensor. A thin metal sheet (e.g., a steel foil) similar to the material to be monitored was attached onto the surface of a radio frequency identification (RFID) transponder and served as an RF shielding layer to block the communication between the RFID transponder and the transceiver. The shielded transponder (the sensor) was then subjected to corrosion exposure, which caused the corrosion of the shielding metal sheet and led to the degradation of the shielding effectiveness. By chronically recording the change of the RF signal strength and the amount of corrosion that occurred, a correlation could be established between the signal strength and the corrosion rate. In this way, a simple wireless corrosion-monitoring sensor was developed. Steel sheets with various thicknesses (50 μm to 250 μm) were used as shielding layers on ultra-high-frequency RFID transponders, and the sensors covered by these various sheets behaved differently during corrosion exposure. The microstructure change of the shielding material was characterized by optical microscopy and scanning electron microscopy, which revealed the uneven thinning and final damage of the shielding layer, leading to the (partial) restoration of the RF signal.

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3

Morris, Scott, and Dan Carey. "Study of Grounding Schemes Utilized in Conformal Shielding Applications." International Symposium on Microelectronics 2010, no. 1 (2010): 000906–11. http://dx.doi.org/10.4071/isom-2010-tha4-paper6.

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There are many different shielding technologies available for electromagnetic interference (EMI) shielding in radio frequency (RF) applications. We will investigate various EMI shielding technologies, one of which is RFMD's MicroShield™ Integrated RF Shielding technology's conformal plating process that encapsulates the device with a solid sheet of metal. This novel technology provides improvements in form factor, ease of use, and lower cost as compared to traditional shielding approaches. We will compare ground designs within the substrate to determine maximum EMI shield performance. An examination of ground structures, layer grounding, and external ground connections will be analyzed. The test device structure will be comprised of a radiating element on the top surface of the laminate. A thorough look at the advantages and limitations between these different EMI grounding configurations will be discussed. This data will be used to quantify grounding effectiveness which will, in turn, be used to generate design guidelines.

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4

Aliyah, Fitrotun, Azhar Abdul Rahman, Yasmin Md Radzi, and Imam Kambali. "COMBINED METHOD OF BULK MATERIAL SHIELDING EVALUATION FOR 200 MEV HIGH ENERGY NEUTRON SOURCE USING PHITS MODELLING AND PARTIAL DENSITY." Spektra: Jurnal Fisika dan Aplikasinya 8, no. 1 (2023): 1–16. http://dx.doi.org/10.21009/spektra.081.01.

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Neutron encounters difficulties in shielding protection. Thus, many researchers have performed simulation and experimental research on neutron shielding materials. The characteristic of materials is highly dependent on neutron energy. The evaluation of neutron shielding for various materials, such as iron, concrete, aluminum, and borated polyethylene (BPE), was conducted in this paper through simulation using a Monte Carlo code of PHITS 3.27 and calculation via partial density method. A mono-energetic neutron source with an energy of 200 MeV is emitted perpendicular to the shielding material with a thickness of 105 cm. The parameters measured in this analysis include flux, fast neutron removal cross-section, neutron depth dose, ambient dose H*(10) equivalent, and neutron dose reduction factor (RF). Results show that iron is a good material against high-energy neutron and secondary photon radiation at the energy range with the highest removal cross-section and the lowest RF value (0.39), followed by concrete, BPE, and aluminum. The integrated fluence and effective dose profiles were consistent with previous results in the literature. Benchmarking calculation of neutron dose RF was conducted with other publications and was in good agreement within the value range.

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5

Dewani, Aliya A., Steven G. O'Keefe, David V. Thiel, and Amir Galehdar. "Window RF Shielding Film Using Printed FSS." IEEE Transactions on Antennas and Propagation 66, no. 2 (2018): 790–96. http://dx.doi.org/10.1109/tap.2017.2780893.

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6

Itoh, Keisuke, Yukio Hotta, and Mineo Itoh. "RF shielding characteristics of an HTS plate: RF shielding improvement by changing the surface area of BPSCCO plate." Physica C: Superconductivity 386 (April 2003): 438–43. http://dx.doi.org/10.1016/s0921-4534(02)02204-9.

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7

A. R, Aparna, Shamanth PV, Adrian J. Fernandes, et al. "EMI Shielding Materials in Drones." Acceleron Aerospace Journal 3, no. 4 (2024): 545–52. http://dx.doi.org/10.61359/11.2106-2456.

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The rapid advancement of UAV technology has increased system complexity, particularly in cellular network applications where UAVs work alongside ground-based base stations. A major challenge is electromagnetic interference (EMI) in the radiofrequency (RF) band, caused by components such as motors and power supplies, which can disrupt communication signals. Effective shielding is crucial to ensure uninterrupted UAV operation, as external EMI from base stations can jeopardize UAV electronics, leading to unintended flight paths or loss of communication. This review explores enhanced security measures for UAV electronics in RF environments, proposing three materials for EMI shielding: reduced graphene oxide (RGO), electrically conductive epoxy resins filled with polyaniline (PANI) and polypyrrole (PPy), and hybrid polymer composites using a polyvinylidene fluoride (PVDF) matrix with few-layer graphene (FLG) and nickel spinel ferrites (NSF).

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8

Arps, V., and K. Scheibe. "Schirmwirkung von Hochfrequenz (HF)-Schutzkleidung: Untersuchung verschiedener Konstruktionsmerkmale." Advances in Radio Science 3 (May 12, 2005): 125–29. http://dx.doi.org/10.5194/ars-3-125-2005.

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Abstract. Die Messverfahren zur Bestimmung der Schutzwirkung von HF-Schutzkleidung sind in der Norm DIN 32780-100 festgelegt. Entsprechend diesen Anforderungen wird die elektrische und magnetische Schirmdämpfung bestimmt und daraus als Maß für die Schutzwirkung die elektromagnetische Schirmdämpfung berechnet. Diese ist eine der SAR vergleichbare Größe. In diesem Beitrag werden die Einflüsse verschiedener Konstruktionsmerkmale von HF-Schutzanzügen auf die elektromagnetische Schirmdämpfung untersucht. Zu diesen gehören die nach MIL STD 285 vermessene elektrische Schirmdämpfung der verwendeten Gewebe. Weiter werden verschiedene Teilbereiche der HF-Schutzkleidung auf ihre Schutzwirkung untersucht. Der Schwerpunkt liegt hierbei auf der Fragestellung inwieweit Verschlüsse, Reißverschlüsse oder leitfähiges Klettband, die Schutzwirkung beeinträchtigen. Zu diesem Zweck werden zwei Schutzanzüge unterschiedlicher Konstruktion vergleichend vermessen. Es handelt sich dabei um einen bereits im Handel befindlichen und entsprechend der Norm zertifizierten Anzug und einen neuen Prototyp, welcher nach verschiedenen Gesichtspunkten optimiert wurde. Schwachstellen der Konstruktion werden herausgearbeitet und Ansatzpunkte für weitere Verbesserungen erarbeitet. The measuring methods for determining the shielding effectiveness of radiofrequency (RF)-protective clothing are defined in German Standard DIN 32780-100. According to this standard, both the electric and the magnetic shielding effectiveness are measured in order to calculate the electromagnetic shielding effectiveness. The electromagnetic shielding effectiveness is an adequate quality criterion for the degree of protection and also compares well with the Specific Absorption Rate (SAR). In this article, the impact of different design features on the electromagnetic shielding effectiveness is analyzed. The electric shielding effectiveness of the used shielding materials is measured according to MIL STD 285 and thereupon taken into account. Moreover, different parts of the RF-Protective Clothing are analyzed in terms of shielding properties. The main focus is on the question to what extent seams and zippers impair the shielding properties. Therefore, two RF-protective suits with different design features are tested and compared. One of the tested suits is accredited according to German Standard and is already on the market. The other one is an optimized prototype. Weak spots concerning design features and starting points for further optimization are worked out.

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9

Conradi, Mark S., and Albert P. Zens. "RF shielding and eddy currents in NMR probes." Journal of Magnetic Resonance 305 (August 2019): 180–84. http://dx.doi.org/10.1016/j.jmr.2019.06.011.

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10

Truhn, D., F. Kiessling, and V. Schulz. "Optimized RF shielding techniques for simultaneous PET/MR." Medical Physics 38, no. 7 (2011): 3995–4000. http://dx.doi.org/10.1118/1.3596532.

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11

Hill, Howard, and Michael D. Cummings. "5192911 NMR probe incorporating RF shielding of sample." Magnetic Resonance Imaging 11, no. 8 (1993): XLVI. http://dx.doi.org/10.1016/0730-725x(93)90335-b.

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12

Xie, Qian, Shuaibo Wang, Libing Cai, Min Zhao, and Hongyu Huang. "Research on welding technology of ultra light RF coaxial cable components for aerospace applications." Journal of Physics: Conference Series 2820, no. 1 (2024): 012104. http://dx.doi.org/10.1088/1742-6596/2820/1/012104.

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Abstract With the development of space satellite models towards miniaturization, the demand for weight reduction of subsystems and single equipment has increased sharply. As RF cable components serve as microwave link transmission channels, the large amount of satellite usage puts higher requirements on their lightweight. This article proposes a high reliability welding process method for the silver plated aramid fiber outer shielding layer of ultra light RF coaxial cables, which addresses issues such as poor solder wettability and low solder filling rate. This improves the solderability of the silver plated aramid fiber shielding layer, increasing the solder filling rate from the original 60% to over 90%, meeting the quality control requirements of solder joints in aerospace cable components, and achieving batch stable welding of ultra light RF cable components with high reliability and high solder filling rate.

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13

Lin, Han-Nien, Ya-Ying Chen, Hung-Yun Tsai, and Min-Shan Lin. "Characteristic Analysis and Applications of Electromagnetic Shielding Materials for Wireless Communications Device." Open Materials Science Journal 10, no. 1 (2016): 44–53. http://dx.doi.org/10.2174/1874088x01610010044.

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As the trend of consumer electronics and mobile communications devices is obviously developing toward to miniature and high-speed processing, the problem involving with electromagnetic compatibility (EMC) or radio frequency interference (RFI) is becoming more critical for the system integration of high-speed digital and RF mixed signal platforms. This paper is mainly focusing on the characteristics analysis of various electromagnetic shielding materials by utilizing the various shielding effectiveness (SE) measuring methods developed by TDK and ASTM (ASTM D4935). We also adopt the electromagnetic interference (EMI) testing methods developed by IEC for chip level (IEC 61967-3 and IEC 61967-6) to investigate the characteristics and distribution of EMI noise sources. To effectively shield the electric, magnetic, or electromagnetic field originated from noise source, we thus analyze the shielding capability for various materials with different measuring methods. Finally, we will show the EMI reduction and RF performance improvement with implementation of shielding material on module under investigated. With the systematic measurement and analysis described in this paper, we can further identify the related EMI problem and resolve the severe chip or module level EMC problem more effectively.

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14

Kakorina, Olesya, Igor Kakorin, and Alexandra Panchenko. "Selection of Radio-Absorbing Coating According to the Specified Criteria." NBI Technologies, no. 1 (February 2023): 24–28. http://dx.doi.org/10.15688/nbit.jvolsu.2023.1.4.

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From noisy urban centers to remote mountain peaks, we are accompanied by electromagnetic signals. These information-carrying waves cause much of our modern world to move and function properly. But they are also destructive. The sheer number of signals creates a problem of radio interference. This problem is solved by radio frequency and electromagnetic shielding. RF shielding involves shielding a device from signals that are in the frequency range used for radio transmission. Shielding against electromagnetic interference involves shielding against higher frequencies, used for applications that go far beyond radio transmission. Both types of signals can interfere with the operation of electronic devices, and many devices must be protected from both. The materials and coatings used for shielding vary greatly in their properties, shielding capacity, and price. The paper considers a software package that allows, according to the necessary criteria, to select the appropriate radioabsorbing coating.

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15

Negishi, Motohiro, Tomoaki Shibata, Xinrong Li, and Naoya Suzuki. "Verification of Compartmental Electromagnetic Interference Shielding Effect with imprint-Through Mold Via (i-TMV) for RF modules." International Symposium on Microelectronics 2021, no. 1 (2021): 000303–7. http://dx.doi.org/10.4071/1085-8024-2021.1.000303.

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Abstract In order to form a compartmental EMI shielding structure for radio frequency (RF) modules, we have proposed the new process named ”imprint-Through Mold Via (i-TMV)”, which could be fabricated by imprinting with a silicon master and filling with conductive paste. In this work, a test coupon was fabricated and EMI shielding effect of the i-TMV was actually evaluated by measurement of the electric field strength that leaked through from via array. As a result, it was found that the shielding effect was 23.6 dB at 4 GHz, which was close to the completely shielded value with a metal cap (25.6 dB). This result indicated that the i-TMV was significantly effective as a compartmental EMI shielding for the Sub-6 band application.

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16

Yin, Laiyin, Franziska Schrank, Nicolas Gross-Weege, David Schug, and Volkmar Schulz. "RF shielding materials for highly-integrated PET/MRI systems." Physics in Medicine & Biology 66, no. 9 (2021): 09NT01. http://dx.doi.org/10.1088/1361-6560/abf606.

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17

Itoh, Keisuke, and Mineo Itoh. "RF Magnetic Shielding Effects of a Bincho-Charcoal Plate." IEEJ Transactions on Electronics, Information and Systems 124, no. 2 (2004): 399–403. http://dx.doi.org/10.1541/ieejeiss.124.399.

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18

Bratschun, W. R., and J. L. Leicht. "Welding of plated, dissimilar metals for RF/EMI shielding." IEEE Transactions on Components, Hybrids, and Manufacturing Technology 15, no. 6 (1992): 931–37. http://dx.doi.org/10.1109/33.206914.

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19

Hamouda, Samir A., and Naji S. Amneenah. "New Compounds for Electromagnetic Interference Shielding." Saudi Journal of Engineering and Technology 9, no. 03 (2024): 150–53. http://dx.doi.org/10.36348/sjet.2024.v09i03.005.

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The impact of electromagnetic wave interference on electronic devices and the danger that can arise from it has become a problem that is being discussed at the international level. This paper discusses research on important and effective materials and compounds to be used for EMI shielding. In this paper, three basalt samples (A12, A14, and B12) have been selected and analyzed for reflection and absorption for RF and microwave frequencies.

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20

Gyan, Deepankar Sri, and Balasubramanian K. "Ionic liquid microseeded WC/RF ablative composite for heat shielding." RSC Advances 6, no. 69 (2016): 65152–61. http://dx.doi.org/10.1039/c6ra09285c.

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The in situ incorporation of tungsten(iv) carbide in 3D thermosetting resorcinol formaldehyde was carried out to fabricate a resol type WC/RF heat shielding ablative material. The effect of infusing an ionic liquid on the thermal insulation properties was also investigated.

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21

Saxena, Vyom. "Industrial hygiene and safety implications of radiofrequency use in particle accelerator technologies." Radiation Protection and Environment 48, no. 1 (2025): 3–8. https://doi.org/10.4103/rpe.rpe_4_25.

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Despite their essential contributions, particle accelerators present unique occupational hazards, including exposure to ionizing radiation, high-voltage systems, cryogenic temperatures, and risks associated with handling hazardous materials and strong electromagnetic fields. Among these, radiofrequency (RF) exposures – primarily from RF cavities and auxiliary equipment – pose significant health and safety risks. Effective mitigation strategies are critical to safeguarding personnel. These strategies include adherence to established guidelines and standards, comprehensive risk assessments, and the implementation of engineering controls, administrative measures, and personal protective equipment. This article discusses the importance of these measures in reducing health risks related to accelerator operations, with a particular focus on RF exposures. Case studies on RF emission control and mitigation practices at select accelerators are presented to illustrate effective occupational safety strategies. The high-power RF systems at low-energy high-intensity proton accelerator and Electron Beam Center employ advanced shielding, RF monitoring, and safety interlocks to minimize RF radiation exposure, ensuring compliance with strict safety standards and enabling incident-free operation of particle accelerators.

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22

Itoh, E., Y. Hotta, M. Itoh, et al. "RF magnetic shielding effect of a sealed bottom HTS cylinder." IEEE Transactions on Appiled Superconductivity 11, no. 1 (2001): 2394–97. http://dx.doi.org/10.1109/77.920344.

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23

Nishikubo, T., H. Endo, and M. Itoh. "Orientation Characteristics in RF Magnetic Shielding Effects of BPSCCO Plates." IEEE Transactions on Applied Superconductivity 19, no. 3 (2009): 2245–48. http://dx.doi.org/10.1109/tasc.2009.2019142.

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24

Nishikubo, T., H. Endo, and M. Itoh. "Manufacture of an RF Magnetic Shielding Plate Having Orientation Characteristics." IEEE Transactions on Instrumentation and Measurement 58, no. 10 (2009): 3788–95. http://dx.doi.org/10.1109/tim.2009.2019718.

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25

Brcka, Jozef, and R. Lee Robison. "Coupling and Shielding Properties of the Baffle in ICP System." Modelling and Simulation in Engineering 2011 (2011): 1–7. http://dx.doi.org/10.1155/2011/541743.

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This contribution is dealing with experimental and computational evaluation of the deposition baffle that is transparent to radio frequency (RF) magnetic fields generated by an external antenna in an inductively coupled plasma (ICP) source but opaque to the deposition of the metal onto a dielectric wall in ionized physical vapor deposition (IPVD) system. Various engineering aspects related to the deposition baffle are discussed. Among the many requirements focus is on specific structure of the slots and analysis to minimize deposition on the baffle (we used a string model for simulating the profile evolution) and deposition through the DB on dielectric components of the ICP source. Transparency of the baffle to RF magnetic fields is computed using a three-dimensional (3D) electromagnetic field solver. A simple two-dimensional sheath model is used to understand plasma interactions with the DB slot structure. Performance and possible failure of device are briefly discussed.

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26

Jia, Hu Jun, Yin Tang Yang, and Chang Chun Chai. "A New 4H-SiC MESFET Utilizing N^- Shielding and Field Plate Techniques Simultaneously." Advanced Materials Research 148-149 (October 2010): 1182–87. http://dx.doi.org/10.4028/www.scientific.net/amr.148-149.1182.

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Some new techniques include n- shielding, buried channel and field plate are firstly adopted together for design and fabrication of 4H-SiC microwave MESFETs. The testing results show that a relatively broad and uniform transconductance versus gate voltage was obtained using a 0.1m n- shielding. 0.3mm gate periphery device shows good DC and RF performance such as 5.27W/mm power density, 6.7dB power gain and 43% power added efficiency at 2.3GHz under pulse operation. Compared to conventional SiC MESFETs, a gate lag ratio as high as 0.84 can be achieved for the developed devices even under a nearly actual operating condition.

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27

Kim, Tae-Youn, and Jae-Hyun Lee. "Electromagnetic Shielding Effectiveness of CFRP Panels, MLI, and RF Screens for Spacecraft Applications." Journal of Korean Institute of Electromagnetic Engineering and Science 31, no. 11 (2020): 947–55. http://dx.doi.org/10.5515/kjkiees.2020.31.11.947.

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28

Pudipeddi, S. S., P. V. Y. Jayasree, and S. G. Chintala. "Polarization Effect Assessment of Sub-6 GHz Frequencies on Adult and Child Four-Layered Head Models." Engineering, Technology & Applied Science Research 12, no. 4 (2022): 8954–59. http://dx.doi.org/10.48084/etasr.5096.

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Nowadays, with the extensive use of mobile phones, the Electromagnetic (EM) radiation penetration from Radio Frequencies (RFs), particularly into the human head, is an issue that needs resolving. Some serious biological hazards occur inside the human body due to RF radiation accumulation. The RF radiation can be minimized by embodying shielding and coating materials on the front side of the mobile handset. The novelty of the proposed work is the use of mathematical analysis in calculating the Specific Absorption Rate (SAR) absorbed by planar four-layer adult and child head models when exposed to mobile smartphone RF radiation. The variation of SAR with the Angle of Incident (AoI) of the EM wave considers Transverse Electric (TE) and Transverse Magnetic (TM) Polarization. The SAR absorption alteration with the AoI of the EM wave is calculated with the help of the shielding effectiveness parameter of the external Polyethylene Terephthalate (PET) shield coated with conductive copper (Cu) mesh, forming a laminated shield using the methodology of the transmission line method. Furthermore, the SAR variation with AoI for both human head models is calculated theoretically at Sub-6 GHz mobile frequencies of 4.5GHz and 3.6GHz. SAR of 7.41e-12 W/kg and 4.41e-11 W/kg is achieved theoretically for adult and child head models respectively, at 89° TE polarization at 4.5GHz.

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Jang, Hong-Je, and Tae-Seung Song. "Implementation of Concrete Block Shielding Effectiveness Measurement System for RF Shield." Journal of the Institute of Electronics and Information Engineers 55, no. 12 (2018): 85–91. http://dx.doi.org/10.5573/ieie.2018.55.12.85.

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30

Koscheev, Vladimir Nikolaevich, Gennady Nikolaevich Manturov, Mark Nikolaevich Nikolaev, and Anatoly Makarovich Tsiboulya. "ABBN-RF group constants library for nuclear reactor and shielding calculations." Izvestiya Wysshikh Uchebnykh Zawedeniy, Yadernaya Energetika 2014, no. 3 (2014): 93–101. http://dx.doi.org/10.26583/npe.2014.3.10.

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31

Varkey, Bijumon, Bev Christian, Julie Liu, Alexandre Romanov, and Philip Moorhead. "Not Whiskers or Hillocks, But Tin Bumps on RF Shielding Cans." IEEE Transactions on Device and Materials Reliability 10, no. 3 (2010): 353–59. http://dx.doi.org/10.1109/tdmr.2010.2050772.

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32

Lee, Brian J., Ronald D. Watkins, Chen-Ming Chang, and Craig S. Levin. "Low eddy current RF shielding enclosure designs for 3T MR applications." Magnetic Resonance in Medicine 79, no. 3 (2017): 1745–52. http://dx.doi.org/10.1002/mrm.26766.

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33

Radosavljević, Goran, Andrea Marić, Walter Smetana, and Ljiljana Živanov. "Performance Improvement of RF Inductors Using LTCC Technology." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2011, CICMT (2011): 000054–58. http://dx.doi.org/10.4071/cicmt-2011-ta23.

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This paper presents for the first time a parallel comparison of the performance of RF inductors realized on different substrate configurations. Presented inductors are meander type structures fabricated in Low Temperature Co-fired Ceramic (LTCC) technology. Also, chosen material is never before implemented for inductor fabrication. The performance improvement is achieved by design optimization of different substrate configurations that incorporate placement of an air-gap beneath the inductor and/or introduction of an additional shielding layer on the top. Designed structures are characterized on the basis of simulation and experimental data, achieving good correlation between obtained results. Presented results show over 30 % increase in quality factor and widening of the operating frequency range by over 55 %.

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34

Park, Yunjae, Changhyun Jung, Myeongseok Seong, Minjae Lee, Dongil Dan Cho, and Taehyun Kim. "A New Measurement Method for High Voltages Applied to an Ion Trap Generated by an RF Resonator." Sensors 21, no. 4 (2021): 1143. http://dx.doi.org/10.3390/s21041143.

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A new method is proposed to measure unknown amplitudes of radio frequency (RF) voltages applied to ion traps, using a pre-calibrated voltage divider with RF shielding. In contrast to previous approaches that estimate the applied voltage by comparing the measured secular frequencies with a numerical simulation, we propose using a pre-calibrated voltage divider to determine the absolute amplitude of large RF voltages amplified by a helical resonator. The proposed method does not require measurement of secular frequencies and completely removes uncertainty caused by limitations of numerical simulations. To experimentally demonstrate our method, we first obtained a functional relation between measured secular frequencies and large amplitudes of RF voltages using the calibrated voltage divider. A comparison of measured relations and simulation results without any fitting parameters confirmed the validity of the proposed method. Our method can be applied to most ion trap experiments. In particular, it will be an essential tool for surface ion traps which are extremely vulnerable to unknown large RF voltages and for improving the accuracy of numerical simulations for ion trap experiments.

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35

Salman, Maria, Imrana Naseem, Iftekhar Hassan, Aijaz A. Khan, and Ibrahim M. Alhazza. "Riboflavin Arrests Cisplatin-Induced Neurotoxicity by Ameliorating Cellular Damage in Dorsal Root Ganglion Cells." BioMed Research International 2015 (2015): 1–5. http://dx.doi.org/10.1155/2015/603543.

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Cis-Diamminedichloroplatinum II- (CP-) induced neurotoxicity is one of the least explored aspects of this drug. Dorsal root ganglia (DRG) cells are considered as the primary target, and their damage plays a vital role in pathogenesis and etiology of CP-induced neurotoxicity. The present study is aimed at confirming if riboflavin (RF) has any protective role in shielding the DRG from CP-induced toxicity. After conducting the established treatment strategy on mice under photoillumination, it was observed that, despite the fact that RF alone is partially toxic, its combination with CP significantly ameliorated the drug-induced damage in DRG cells as evidenced by histological analysis. In addition, it was interesting to observe that the combination group (RF + CP) was able to induce apoptosis in the target cells up to a significant extent which is considered as the most preferred way of countering cancer cells. Therefore, RF can act as an effective adjuvant compound in CP-based chemoradiotherapy to improve clinical outcomes in the contemporary anticancer treatment regimes.

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36

Reza, Septiawan, Trihatmo Sardjono, Junde Juliati, et al. "Electromagnetic Characteristics Measurement of Organic Material Absorber." TELKOMNIKA Telecommunication, Computing, Electronics and Control 16, no. 6 (2018): 2507–13. https://doi.org/10.12928/TELKOMNIKA.v16i6.9687.

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Electro Magnetic Compatibility (EMC) Chamber requires high performance absorber material to assure the quality of EMC chamber related to Radio Frequency (RF) shielding effectiveness of the corresponding chamber. RF shielding effectiveness is measured following EN 50147-1 testing method. EMC laboratory of BPPT (Indonesian Agency for the Assessment and Application of Technology uses polyurethane absorber material which absorbs the carbon-neoprene mixture to maintain consistent RF performance over a broad frequency band, especially in the frequency range of CISPR 22 radiated emission test between 30 MHz to 6 GHz, limits in CISPR 22 (Information technology equipment-radio disturbance characteristics-limits and methods of measurement). This paper proposes alternative absorber materials based on organic materials: rice husk, coconut husk, cotton and sawn wood crumbs. In the early phase of this research, the frequency under consideration are 900 MHz and 1800 MHz. These frequencies are mostly used by mobile phone devices, therefore at this phase the resulted organic material absorber may be used for alternative mobile phone casing before to be used as absorber material for EMC laboratory in a broader frequency band. The organic materials are produced by mixing them with cement, carbon, and resin. Free space testing method is used in the measurements. Results has shown a mixture of 50% coconut husk with resin absorb the most radiated emission in 900 MHz, while 30% of coconut husk will absorb the most radiated emission in 1800 MHz.

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Roland, Ulf, Frank Holzer, Ulf Trommler, Björn Höhlig, Markus Kraus, and Christian Hoyer. "Arrangements for radio-frequency heating of building structures." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 6 (2018): 1933–42. http://dx.doi.org/10.1108/compel-03-2017-0145.

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Purpose The aim of this study was to prove that radio-frequency (RF) energy with 13.56 MHz can be used for heating building structures in a controlled manner exploiting the advantage that homogeneous heating with sufficient penetration depths can be achieved. Design/methodology/approach Because parallel electrodes on both sides of the heated structure cannot be used in many practical applications, two special electrode designs have been developed by modeling the field distribution and energy absorption and by carrying out test experiments to validate the simulation results. Findings One solution is based on a two-dimensional surface capacitor providing certain penetration depths and being especially suitable for treating thin structures such as wooden parquet floor. Such an arrangement can be particularly used for pest control even when sensitive surfaces have to be protected. The other solution uses a capacitive coupling between the grounded shielding and an electrode or an equivalent structure (e.g. moist soil) at the other side of the masonry to establish a sufficiently strong electrical field between a “hot” electrode on the side of the shielding and the coupled rear electrode. Originality/value Both solutions significantly enhance the application potential of RF heating.

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38

Liang, Chih-Hao, and Ying-Jung Chen. "Preparation of High-Performance Metal-Free UV/Near Infrared-Shielding Films for Human Skin Protection." Nanomaterials 11, no. 8 (2021): 1954. http://dx.doi.org/10.3390/nano11081954.

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A series of metal-free UV/near infrared (NIR)-shielding coatings are successfully fabricated by shielded cathodic arc plasma evaporation (CAPE) and substrate-biased RF magnetron sputtering processes. The UV/NIR-shielding coatings comprising quarter-wave stacks of TiO2/SiO2 multilayers and high-conductivity sputter-deposited ITO films with a thickness in the range of 200–600 nm could block IRA and IRB radiations, respectively. The total thicknesses of UV/near infrared-shielding films are in the range from 375 nm to 1513.8 nm. The anatase-phase TiO2 films with absorption edge located at ∼375 nm were deposited by shielded CAPE at ∼100 °C. Further, the well-crystallized ITO films were found to have high free-electron concentrations (1.12 × 1021 cm−3), resulting in strong absorption of IRB due to the plasmon resonance absorption. The optimal optical design and ITO film thickness were investigated, and the TiO2(SiO2/TiO2)3 multilayer combined with an ITO film thickness of 400 nm was found to provide a high NIR-shielding rate of 94.8%, UVB to UVA-shielding rate of 92.7%, and average visible light transmittance of 68.1%. Further, human skin cells protected by a UV/NIR-shielding coating showed significantly decreased reactive oxygen species generation and inflammatory cytokine expression as compared to those of unprotected cells. The results demonstrate that the development of multifunction coatings have potential for transparent heat insulation windows and human skin protection against UV/IR radiations.

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39

Yang, Jihyun, Hyun Ho Park, Jiseong Kim, and Wansoo Nah. "Shielding Model of Single-Braided RF Cable Considering Structural Characteristics of Triaxial Method." Journal of Korean Institute of Electromagnetic Engineering and Science 35, no. 11 (2024): 911–19. https://doi.org/10.5515/kjkiees.2024.35.11.911.

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40

Yang, Zhangyan, Ming Lu, Gary Drake, et al. "RF shielding designs for birdcage coils for preclinical MRI at 9.4 T." Magnetic Resonance Imaging 94 (December 2022): 1–6. http://dx.doi.org/10.1016/j.mri.2022.08.018.

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41

Ravelo, Blaise, and Belahcene Mazari. "CHARACTERIZATION OF THE REGULAR POLYGONAL WAVEGUIDE FOR THE RF EM SHIELDING APPLICATION." Progress In Electromagnetics Research M 12 (2010): 95–105. http://dx.doi.org/10.2528/pierm10030306.

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42

Zhou, Dejun, Lin Lin, Liwen Feng, and Shengwen Quan. "RADIATION SHIELDING STUDY FOR THE VERTICAL TEST SYSTEM FOR SUPERCONDUCTING RF CAVITIES." Radiation Protection Dosimetry 185, no. 1 (2018): 124–30. http://dx.doi.org/10.1093/rpd/ncy276.

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Abstract A vertical test system (VTS) for superconducting radio frequency cavities had been designed and constructed at Peking University. During the test, field emission electrons in the cavity will be accelerated and some of them will hit the flange of cavity with high-energy. These high-energy electrons will have a significant impact on the radiation safety of the system and environment. In this paper, the Particle-in-Cell solver in CST software was used to analyze the behavior of electrons emitted from different field emission positions and found the worst field emission site which deposited the most energy on the cavity wall. The impact information of the electrons emitted from the worst field emission site was utilized to character the source term. Prompt dose equivalent rate distribution and residual radioactivity was predicted by using the Monte Carlo simulation program FLUKA. Further vertical test results are consistent with the simulation results.

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43

Parl, C., A. Kolb, A. M. Schmid, et al. "A novel optically transparent RF shielding for fully integrated PET/MRI systems." Physics in Medicine & Biology 62, no. 18 (2017): 7357–78. http://dx.doi.org/10.1088/1361-6560/aa8384.

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44

KIM, S. J., J. J. LEE, Y. S. LEE, J. H. KIM, and S. J. YOU. "Computational study on influence of RF shielding box on inductance of coil." Plasma Science and Technology 21, no. 6 (2019): 064004. http://dx.doi.org/10.1088/2058-6272/ab0d42.

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45

Sugai, Hideo, Kenji Nakamura, and Keiji Suzuki. "Electrostatic Coupling of Antenna and the Shielding Effect in Inductive RF Plasmas." Japanese Journal of Applied Physics 33, Part 1, No. 4B (1994): 2189–93. http://dx.doi.org/10.1143/jjap.33.2189.

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46

B, Sakthi Abirami, Esther Florence Sundarsingh, and Vimal Samsingh Ramalingam. "Mechanically Reconfigurable Frequency Selective Surface for RF Shielding in Indoor Wireless Environment." IEEE Transactions on Electromagnetic Compatibility 62, no. 6 (2020): 2643–46. http://dx.doi.org/10.1109/temc.2020.2983899.

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47

Nishikubo, T., H. Endo, H. Norikane, K. Itoh, F. Tojo, and M. Itoh. "RF Magnetic Shielding Effects of an Aggregated Plate Constructed from Carbon Tiles." Transactions of the Materials Research Society of Japan 32, no. 4 (2007): 1067–70. http://dx.doi.org/10.14723/tmrsj.32.1067.

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48

Nishikubo, T., H. Endo, and M. Itoh. "Orientation characteristics in the RF electric shielding effects of superconducting BPSCCO plates." Journal of Physics: Conference Series 234, no. 4 (2010): 042024. http://dx.doi.org/10.1088/1742-6596/234/4/042024.

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49

Dardzinski, Bernard J., Shizhe Li, Christopher M. Collins, Gerald D. Williams, and Michael B. Smith. "A Birdcage Coil Tuned by RF Shielding for Application at 9.4 T." Journal of Magnetic Resonance 131, no. 1 (1998): 32–38. http://dx.doi.org/10.1006/jmre.1997.1334.

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50

Peterson, Ken A., Daniel S. Krueger, and Charles E. Sandoval. "Selected Applications and Processing for Low Temperature Cofired Ceramic." International Symposium on Microelectronics 2010, no. 1 (2010): 000248–53. http://dx.doi.org/10.4071/isom-2010-tp3-paper2.

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Low Temperature Cofired Ceramic technology has proven itself in microelectronics, microsystems (including microfluidic systems), sensors, radio frequency (RF) features, and various other non-electronic applications. We will discuss selected applications and the processing associated with those applications. We will then focus on our recent work in the area of electromagnetic isolation (EMI) shielding using full tape thickness features (FTTF) and sidewall metallization. The FTTF is very effective in applications with −150 dB isolation requirements, but presents obvious processing difficulties in full-scale fabrication. The FTTF forms a single continuous solid wall around the volume to be shielded by using sequential punching and feature-filling. Sidewall metallization provides another method for shielding. We discuss the material incompatibilities and manufacturing considerations that need to be addressed for such structures and show preliminary implementations.

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