Relevant bibliographies by topics / U-shaped resonator

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'U-shaped resonator'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "U-shaped resonator"

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Li, Ping. "Dual plasmon-Induced transparency in two-dimensional metamaterials with coupled resonators." Materials Express 13, no. 2 (2023): 395–400. http://dx.doi.org/10.1166/mex.2023.2341.

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We herein report a numerical investigation of dual plasmon induced transparency (PIT) effect in two-dimensional plasmonic metamaterials composed of two C-shaped resonators and one U-shaped resonator. The finite difference time domain (FDTD) method is herein introduced to analyze transmission properties and electromagnetic field distributions of certain resonance wavelengths. It was found that, the PIT spectral response was affected by parameters of plasmonic metamaterials, such as the widths of C-shaped resonator and U-shaped resonator, and edge-to-edge distance between the adjacent resonators
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Giacomozzi, Flavio, Emanuela Proietti, Giovanni Capoccia, et al. "Design of U-Shaped Frequency Tunable Microwave Filters in MEMS Technology." Sensors 23, no. 1 (2023): 466. http://dx.doi.org/10.3390/s23010466.

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U-shaped microwave resonators implemented by RF MEMS switches can be considered the result of a novel design approach for obtaining small-footprint tunable resonators, owing to the bent shape of the resonator and the microsystem solution for changing the frequency of resonance. In this paper, we discuss the design approach for potential configurations of U-shaped structures combined with ohmic RF MEMS switches. Owing to their prospective application in RADAR and satellite systems, the devices were assessed for K-Band operation, specifically for 15 GHz, 20 GHz, and 26 GHz. The ON-OFF states det
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Marcelli, Romolo, Giovanni Maria Sardi, Emanuela Proietti, et al. "MEMS-Switched Triangular and U-Shaped Band-Stop Resonators for K-Band Operation." Sensors 23, no. 19 (2023): 8339. http://dx.doi.org/10.3390/s23198339.

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Triangular resonators re-shaped into Sierpinski geometry and U-shaped resonators were designed, linking them with single-pole-double-through (SPDT) RF MEMS switches to provide frequency tuning for potential applications in the K-Band. Prototypes of band-stop narrowband filters working around 20 GHz and 26 GHz, interesting for RADAR and satellite communications, were studied in a coplanar waveguide (CPW) configuration, and the tuning was obtained by switching between two paths of the devices loaded with different resonators. As a result, dual-band operation or fine-tuning could be obtained depe
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Fomin, D. G., N. V. Dudarev, and S. N. Darovskikh. "Frequency-tunable device based on a multilayer strip-slot transition and its application for measuring the dielectric properties of materials." Ural Radio Engineering Journal 5, no. 3 (2021): 225–38. http://dx.doi.org/10.15826/urej.2021.5.3.002.

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The paper presents the results of theoretical and experimental researches of a frequency-tunable device based on the multilayer strip-slot transition with the U-shaped slot resonator of the variable length. The application of the presented device makes it possible to implement a resonant method for measuring the dielectric properties of materials in the microwave frequency range. The numerical simulation in the rigorous formulation of the electrodynamics problem is performed for the theoretical research. The aim of the theoretical research is to determine the electrical characteristics of the
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Boysunov, Botir Pulat ugli, and Larisa Alexandrovna Korotkova. "STUDY OF U-SHAPED DIELECTRIC RESONATOR ANTENNA." EURASIAN JOURNAL OF ACADEMIC RESEARCH 1, no. 1 (2021): 980–86. https://doi.org/10.5281/zenodo.4742268.

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<em>This article presents a U-shaped dielectric resonant antenna (DRA) of small size, but with a wide bandwidth. The antenna is made of a material with a very high dielectric constant (</em><em>= 81) and has a new shape that supports many modes. The size of the proposed antenna is smaller than that of other DRAS created for the 2.4 GHz &ndash; 3.0 GHz bands, while the achievable bandwidth resistance for S11 &lt; -10 dB is about 22%. Thus, this antenna can be used for IEEE 802.11 b/g for WLAN (2.4-2.5 GHz) and LTE (2.5-2.7 GHz), and can also be modified for other frequency bands.</em>
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Poulami, Ghosh, Takawane Shradha, Burchunde Ishan, N. Gaikwad Ganesh, and Singh Rajesh. "Compact Dual Band MIMO Printed Monopole Antenna." Journal of Optoelectronics and Communication 7, no. 2 (2025): 14–19. https://doi.org/10.5281/zenodo.15449463.

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<em>This paper presents the design of a compact MIMO (Multiple input Multiple output) antenna which resonates at dual band frequencies (2.4 GHz and 5.4 GHz). The U-shaped resonator is incorporated to reduce mutual coupling at 5.4 GHz (achieving - 32 dB isolation), while the rectangular slot structure effectively minimizes mutual coupling at 2.4 GHz (achieving -28 dB isolation). The return loss is below -15 dB at both frequency bands, ensuring excellent impedance matching. These design elements enhance antenna performance and improve isolation between MIMO elements. The simulated results demons
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Xiao, Gongli, Yanping Xu, Hongyan Yang, et al. "High Sensitivity Plasmonic Sensor Based on Fano Resonance with Inverted U-Shaped Resonator." Sensors 21, no. 4 (2021): 1164. http://dx.doi.org/10.3390/s21041164.

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Herein, we propose a tunable plasmonic sensor with Fano resonators in an inverted U-shaped resonator. By manipulating the sharp asymmetric Fano resonance peaks, a high-sensitivity refractive index sensor can be realized. Using the multimode interference coupled-mode theory and the finite element method, we numerically simulate the influences of geometrical parameters on the plasmonic sensor. Optimizing the structure parameters, we can achieve a high plasmonic sensor with the maximum sensitivity for 840 nm/RIUand figure of merit for 3.9 × 105. The research results provide a reliable theoretical
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Chen, Yishu, Jijun Feng, Jian Chen, et al. "Optical Bistability in a Tunable Gourd-Shaped Silicon Ring Resonator." Nanomaterials 12, no. 14 (2022): 2447. http://dx.doi.org/10.3390/nano12142447.

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In this study, a tunable gourd-shaped ring resonator is demonstrated to generate optical bistability. The system consists of two sub-rings for a gourd shape configuration with a U-shaped wave guiding pathway. The transfer matrix method and FDTD simulation are used to acquire the spectral characteristics of the system. For the fabricated device, the spectra profile and extinction ratio can be effectively tuned by the microheater above the U-shaped waveguide, which matches with the theoretical results. Due to the gourd structure of the resonator, the light waves in two rings can be cross-coupled
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Pourasad, Yeganeh, and Gholamreza Karimi. "Design of ultra compact dual-band bandpass filter using L-shaped resonator." International Journal of Microwave and Wireless Technologies 9, no. 3 (2017): 493–97. http://dx.doi.org/10.1017/s175907871600009x.

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A compact dual-band microstrip bandpass filter (BPF) is presented for application at the frequencies 2.4 and 5.84 GHz. The proposed main resonator consists of two L-shaped resonators. To improve the upper-stopband of the proposed filter, modified U-Shaped resonators are accepted. The operation mechanism of the filter is investigated based on proffered equivalent-circuit model and transformation function. The sketched dual-band BPF attends the insertion loss less than 0.1 and 0.4 dB Also the return loss is 26 and 28 dB at 2.4 and 5.84, respectively. This proffered filter structure is proper for
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Amadou Mouctar Balde, Thierno, Franklin Manene, and Franck Moukanda Mbango. "A dualband bandpass filter with tunable bandwidths for automotive radar and 5G millimeter-wave applications." Indonesian Journal of Electrical Engineering and Computer Science 27, no. 1 (2022): 309. http://dx.doi.org/10.11591/ijeecs.v27.i1.pp309-317.

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A compact dual wideband bandpass filter for automotive radar (AR) and 5G millimeter-wave (mmWave) applications with adjustable bandwidths is presented in this work. The filter is based on microstrip dual-mode edge-coupled stub-loaded resonators (SLR). The novelty of this configuration is that it allows independent control of the bandwidths which is not obvious for many reported SLR-based filters. To achieve an overall size of 1.23λ_g× 2.02λ_g, these resonators are coupled and bent int o U-shape, T-shape, and E-shape. The U-shaped resonator, based on a quarter-wavelength transmission line, is c
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Dissertations / Theses on the topic "U-shaped resonator"

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Wu, Pin Chieh, and 吳品頡. "Plasmon Induced Transparency of Three Dimensional U-shaped Nano-resonators." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/99696958475723948004.

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碩士<br>國立臺灣大學<br>物理研究所<br>100<br>Electromagnetically induced transparency (EIT) is a quantum interference effect that reduces light absorption over a narrow spectral region in a coherently driven atomic system. Using electron beam double exposure process, we fabricated erected U-shape nano resonators in an array with 600 nm periodicity both in x and y directions, covering the total area of 75 x 75 μm2 on a fused silica substrate. First, we analyzed the single planar and erected split-ring resonators by experiment and simulation. There are also two resonances including electric and magnetic resp
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Sung, Yuan-Jyun, and 宋元雋. "Dual-Band Bandpass Filter Design Using U-Shaped Stepped-Impedance Resonators." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/74973017357801852617.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>98<br>The design of the dual-band bandpass filter using the folded stepped-impedance resonators have several advantages, such as the adjustable spurious frequency and the compact size. In this thesis, the U-shaped stepped-impedance resonators are used to design the dual-band bandpass filters. In this thesis, the theory of the design of dual-band bandpass filter using U-shaped stepped-impedance resonators is analyzed firstly. Next, the conventional, compact and advanced dual-band bandpass filters using U-shaped resonators are designed, respectively. Finally, the
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Chen, Yong-Fong, and 陳永峰. "A study on bandpass filter design using U-shaped stepped-impedance resonators." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/82541344355478719017.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>93<br>The U-shaped stepped-impedance resonators have several advantages, such as low power loss and compact size, as compared with the conventional half-wavelength resonators. Furthermore, the defected ground structure not only can improve the performance of the filter, but also can furtherly reduce the size of the circuit. In this thesis, the U-shaped stepped-impedance resonators and the defected ground structures are used to design the bandpass filters. In this thesis, the influence of defected ground structure on the coupling and frequency response of parall
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Yang, Lung-Chiuan, and 楊龍泉. "Study of Bandpass Filters with U-Shape Microstrip Stepped Impedance Resonators." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/89394271962017571450.

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碩士<br>清雲科技大學<br>電機工程研究所<br>98<br>In this paper, within a step by a first-order (Inward steps, IS), outward-step order (Outward steps, OS) and parallel step bands (parallel steps, PS), three U-shaped microstrip structure, λ / 2 resonator, in order to individually or mutual coupling homostructure or heterostructure form with different configurations of the bandpass filter. The different configurations of bandpass filter, through the simulation comparator, with its coupling with the homostructure adopted in the two ISSIR intercalatum coupling by the frequency response of bandpass filter the b
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Chen, Yann-Fu, and 陳彥甫. "Compact Parallel three-line Multi-band bandpass filter using two U shape coupled Stepped Impedance Resonator." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/80303744918746492187.

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Books on the topic "U-shaped resonator"

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André, Naomi. Black Opera. University of Illinois Press, 2018. http://dx.doi.org/10.5622/illinois/9780252041921.001.0001.

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This is a book about thinking, interpreting, and writing about music in performance that incorporates how race, gender, sexuality, and nation help shape the analysis of opera today. Case-study operas are chosen within the diaspora of the United States and South Africa. Both countries had segregation policies that kept black performers and musicians out of opera. During the civil rights movement and after apartheid, black performers in both countries not only excelled in opera, they also began writing their own stories into the genre. Featured operas in this study span the Atlantic and bring to
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Book chapters on the topic "U-shaped resonator"

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Shaw, Rakita, Pritam Roy, Pankaj Sarkar, and Goutam Saha. "Stepped Impedance Resonator Based U-Shaped Two-Element Monopole Microstrip Antenna Array." In Proceedings of the International Conference on Computing and Communication Systems. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-6890-4_55.

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Sharma, Avichal, Priyanka Agrawal, Nikhil Mishra, Saurav Kumar Sinha, and Mayur S. Raut. "A Miniaturized Printed UWB Antenna with Sextuple Stop Bands Based on U-Shaped Slot Resonators and Split Ring Resonators for IoT Applications." In Lecture Notes in Electrical Engineering. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2926-9_28.

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El Bakkari, Kaoutar, Mohammed El Ghazaoui, Ali El Alami, and Hassan Qjidaa. "Design of a Bandpass Filter Based on Metamaterials." In Advances in Computational Intelligence and Robotics. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-3775-2.ch026.

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This chapter presents a compact bandpass filter design operating at a resonance frequency of 2.4 GHz for wireless communication systems, such as RFID, Wi-Fi, Bluetooth, and WLAN. The proposed filter utilizes a U-shaped resonator made of metamaterials, printed on a RO6010 substrate with specific material properties. It exhibits high selectivity of 950 MHz bandwidth, low insertion loss of -12 dB, and a small size of (16 × 12) mm2, making it ideal for space-constrained applications. The filter design is straightforward and easy to fabricate, offering a promising solution for practical application
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Vasistha, Anup Raju, Chandramouli H. Mahadevaswamy, Solomon H. Ebenuwa, and Augustine O. Nwajana. "Investigating Single- to Dual-Band Bandpass Filter Transformation for Wireless Communication Systems." In Advances in Wireless Technologies and Telecommunication. IGI Global, 2025. https://doi.org/10.4018/979-8-3693-8799-3.ch003.

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A simple technique for transforming a single-band bandpass filter (BPF) into a dual-band BPF is presented in this chapter. The method starts with a 2nd-order single-band BPF design, giving rise to a 4th-order dual-band BPF after the proposed transformation. Both filters are implemented using compact U-shaped microstrip resonator for improved device miniaturization. The proposed work features a centre frequency of 1.4 GHz for the single-band BPF, with a 3.4% fractional bandwidth. The dual-band BPF operates at 1.35 and 1.45 GHz for the first and second bands, respectively. The design implementat
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Berhab, Souad, Abderrahim Annou, and Fouad Chebbara. "Reconfigurable Low-Profile Antenna-Based Metamaterial for On/Off Body Communications." In Handbook of Research on Emerging Designs and Applications for Microwave and Millimeter Wave Circuits. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-5955-3.ch007.

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This chapter proposes a novel method to reduce the specific absorption rate (SAR) of a compact CPW antenna. A combination of three efficient techniques is employed to develop a dual-band bowtie metamaterial antenna with safer SARs. Following this approach, the authors have designed a low-profile antenna with a footprint of only 0.074λ02 and low backward radiation. The simulated results confirm the antenna's suitability for wireless body area network devices operating in the Unlicensed National Information Infrastructure (U-NII) at 5.33 GHz and 18.17 GHz frequency bands for military radar appli
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Conference papers on the topic "U-shaped resonator"

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Huang, Chu-Tian, Kai Lu, and Kwok Wa Leung. "Broad-beam U-shaped Dielectric Resonator Antenna." In 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI). IEEE, 2024. http://dx.doi.org/10.1109/ap-s/inc-usnc-ursi52054.2024.10686979.

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Zhang, Han, Guo Chun Wan, and Mei Song Tong. "A Chipless Flexible Strain Sensor Based on Improved U-shaped Resonator Array." In 2024 Photonics & Electromagnetics Research Symposium (PIERS). IEEE, 2024. http://dx.doi.org/10.1109/piers62282.2024.10618199.

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He, Yueyang, Pin Wen, and Yuxi Jiang. "A Compact Eighth-Order HTS Filter Based on Novel U-Shaped Resonators." In 2024 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2024. http://dx.doi.org/10.1109/icmmt61774.2024.10672386.

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Alja'afreh, Saqer S., Yi Huang, and Lei Xing. "A small wideband U-shaped dielectric resonator antenna." In 2012 Loughborough Antennas & Propagation Conference (LAPC). IEEE, 2012. http://dx.doi.org/10.1109/lapc.2012.6403092.

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Mahender, P., S. Natarajamani, and S. K. Behera. "Inverted U-shaped Dielectric resonator antenna for WLAN." In 2010 International Conference on Communication Control and Computing Technologies. IEEE, 2010. http://dx.doi.org/10.1109/icccct.2010.5670788.

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Abediankasgari, Mohammad, Mohsen Khalily, Shadi Danesh, Pei Xiao, and Rahim Tafazolli. "Reconfigurable Dielectric Resonator Antenna Using an Inverted U-shaped Slot." In 2020 International Symposium on Networks, Computers and Communications (ISNCC). IEEE, 2020. http://dx.doi.org/10.1109/isncc49221.2020.9297207.

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Mol, A. Shabina, S. Aiswarya, and Sreedevi K. Menon. "Study of an electromagnetically coupled resonator energized using U-shaped microstrip feed." In 2017 International Conference on Advances in Computing, Communications and Informatics (ICACCI). IEEE, 2017. http://dx.doi.org/10.1109/icacci.2017.8126038.

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Dos Santos, Keila Silva, Gustavo Oliveira Cavalcanti, Zabdiel Brito-Brito, Ignacio Llamas-Garro, and Eduardo Fontana. "Reconfigurable U-Shaped Microwave Resonator for the Construction of a Hydrogen Sensor." In 2023 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC). IEEE, 2023. http://dx.doi.org/10.1109/imoc57131.2023.10379723.

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Prakash, Pooja, and Bidisha Dasgupta. "Dielectric Resonator Loaded U-shaped Printed Hybrid Antenna for Multiband Wireless Applications." In 2022 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON). IEEE, 2022. http://dx.doi.org/10.1109/mapcon56011.2022.10047732.

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Khan, Shahid, Hazrat Ali, Jamal Nasir, Loic Sieler, and Camel Tanougast. "A U-shaped Wide band frequency reconfigurable dielectric resonator antenna for 5G applications." In 2018 International Symposium on Networks, Computers and Communications (ISNCC). IEEE, 2018. http://dx.doi.org/10.1109/isncc.2018.8530983.

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