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Дисертації з теми "Open resonators"

Автор: Grafiati

Опубліковано: 28 травня 2022

Оновлено: 31 липня 2025

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1

Cognee, Kevin. "Hybridization of open photonic resonators." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0002.

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Le contrôle de l'interaction entre la lumière et la matière est d'une importance capitale dans de nombreuses technologies modernes, avec des applications allant de la détection, aux télécommunications et à l'information quantique. Les résonateurs nanophotoniques permettent d'améliorer cette interaction par le confinement et le stockage du champ lumineux.Cette thèse étudie l'hybridation des modes propres des nano et microrésonateurs, et en particulier les propriétés de résonateurs hybrides composés d'une cavité diélectrique et de nanoantennes plasmoniques. Les résonateurs photoniques présentent

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2

Imani, A. N. "Theoretical and experimental study of the use of small volume open resonators for measuring the propagation parameters of ferromagnetic materials." Thesis, University of Portsmouth, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234581.

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3

陸貴文 and Kwai-man Luk. "Complex-source-point theory of the higher-order modes in an open resonator." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1985. http://hub.hku.hk/bib/B31230532.

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4

Luk, Kwai-man. "Complex-source-point theory of the higher-order modes in an open resonator /." [Hong Kong] : University of Hong Kong, 1985. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12315382.

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5

Ledezma, Luis Manuel. "A Study on the Miniaturization of Microstrip Square Open Loop Resonators." Scholar Commons, 2011. http://scholarcommons.usf.edu/etd/3202.

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A miniaturization technique that allows the size of microstrip square open loop resonators to be reduced by more than 80% is presented and studied. The technique is based on the loading of the resonator with a series surface mount capacitor. It is shown that this technique allows the design of microwave bandpass filters with a wider stopband when compared with conventional designs. It is also proved that the insertion loss of the miniaturized filter is not degraded, but in fact can be maintained or even enhanced by the miniaturization process; this is true whenever the quality factor of the lu

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6

Рубан, Анатолій Іванович, Анатолий Иванович Рубан, Anatolii Ivanovych Ruban, Д. Ю. Дорошенко та А. Н. Никонец. "Электродинамические свойства связанных открытых резонаторов". Thesis, Издательство СумГУ, 2012. http://essuir.sumdu.edu.ua/handle/123456789/27654.

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7

Farooqui, Muhammad Fahad. "Compact circularly polarized slot-ring antenna and microstrip bandpass filter using triangular open-loop resonators." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4969.

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In this thesis two different research topics are undertaken, both in the area of compact RF/microwave circuits design. The first topic involves the design of a compact circularly polarized (CP) slot-ring antenna. A study of several compact CP microstrip and slotline antennas reported in the past has been carried out. In this research, a method of reducing the size of a printed slot-ring antenna is proposed. The reduction in size is achieved by introducing meandered-slot sections in the ring. Circular polarization is achieved by introducing an asymmetry, also a meandered-slot section, and feedi

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8

Rodríguez, Pérez Ana María. "Synthesis of Planar Microwave Circuits based on Metamaterial Concepts through Aggressive Space Mapping." Doctoral thesis, Universitat Politècnica de València, 2015. http://hdl.handle.net/10251/48465.

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RF and microwave applications represent one of the fastest-growing segments of the high performance electronics market, where ongoing innovation is critical. Manufacturers compete intensively to meet market needs with reduced cost, size, weight and many other performance criteria demands. Under this scenario, transmission lines based on metamaterial concepts can be considered a very interesting alternative to the conventional transmission lines. They are more compact (compatible with planar manufacturing processes) and present higher degrees of design flexibility. Furthermore, metamater

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9

Vágner, Petr. "MIKROPÁSKOVÉ FILTRY S VYUŽITÍM NARUŠENÉ ZEMNÍ PLOCHY." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233479.

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The thesis deals with the microstrip filter design using defected ground structure (DGS). The difference between standard asymmetric microstrip technique and DGS is in using the structures etched in the microwave substrate ground plane. The DGS resonant characteristics are then used in filter design. The thesis consists of three factual parts. The first one (chapter 4) introduces the use of the DGS resonators in the lowpass filter design. It involves experimental analysis of one type of the lowpass filter. The second part (chapter 5) deals with a novel microstrip lowpass filter design method u

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10

Cole, Marina. "The design and development of a high precision resonator based tactile sensitive probe." Thesis, Coventry University, 1998. http://curve.coventry.ac.uk/open/items/417a826b-903e-c984-30cf-40ae0fceb125/1.

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This PhD thesis describes the design and development of a new resonator based tactile sensitive probe. This new sensor was proposed because of the increasing need for high-sensitivity, high-speed touch-sensitive probes in coordinate metrology due to the ever-growing demand for precision and reliability at sub-micron level accuracy. Extensive background research on the current development of touch trigger probes has shown that designs based on the resonator principle have potential for minimising lobing effects and the false triggering associated with most commercially available probes. Resonan

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11

Tuhkala, M. (Marko). "Dielectric characterization of powdery substances using an indirectly coupled open-ended coaxial cavity resonator." Doctoral thesis, Oulun yliopisto, 2014. http://urn.fi/urn:isbn:9789526205595.

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Abstract The main objective of this thesis was to research and develop a sensitive characterization method for dielectric powdery substances which could be utilized in various industrial and research fields. With modern electromagnetic simulation tools and the presented experimental measurements, the characterization of dielectric powders using an indirectly coupled open-ended coaxial cavity resonator operating in TEM mode at 4.5 GHz was found to have potential. The modelling and the experimental measurement results of commonly used dielectric powders revealed that, from the nine classical mix

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12

Harvey, Thomas. "Noise in a dynamical open quantum system : coupling a resonator to an artificial atom." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/10829/.

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The subject of this thesis is the study of a particular open quantum system consisting of a resonator coupled to a superconducting single electron transistor (SSET). The theoretical model we use is applicable to both mechanical and superconducting stripline resonators leading to a large parameter regime that can be explored. The SSET is tuned to the Josephson quasi-particle resonance, in which the transport occurs via Cooper pairs coherently tunnelling across one junction followed by the incoherent tunnelling of quasi-particles across the other. The SSET can be thought of as an artificial atom

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13

Lewis, A. P. "The determination of the fundamental resonant frequency of a substrate-mounted open cylindrical dielectric resonator." Thesis, University of Bath, 1986. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370989.

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14

Fletcher, Paul N. "Detailed evaluation of the scattering properties of single particle hydrometeors based on measurements in microwave and millimetre-wave open resonator systems." Thesis, University of Newcastle Upon Tyne, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238936.

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15

Ross, Anthony J. III. "Laser Machining and Near Field Microwave Microscopy of Silver Inks for 3D Printable RF Devices." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6944.

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3D printable materials for RF devices need improvement in order to satisfy the demand for higher frequency and lower loss performance. Characterization of materials that have shown improvements of conductor conductivity have been performed. By using a laser machining technique the loss of a 3D printed 2.45 GHz microstrip Square Open Loop Resonator (SOLR) bandpass filter has been shown to improve by 2.1dB, along with an increase in bandwidth from 10% to 12.7% when compared to a SOLR filter that has not been laser machined. Both laser machined and microwaved silver inks have been mapped for cond

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16

Haller, Kristian. "Nonlinear Acoustics Applied to NonDestructive Testing." Licentiate thesis, Karlskrona : Blekinge Institute of Technology, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-00374.

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Sensitive nonlinear acoustic methods are suitable for material characterization. This thesis describes three nonlinear acoustic methods that are proven useful for detection of defects like cracks and delaminations in solids. They offer the possibility to use relatively low frequencies which is advantageous because attenuation and diffraction effects are smaller for low frequencies. Therefore large and multi-layered complete objects can be investigated in about one second. Sometimes the position of the damage is required. But it is in general difficult to limit the geometrical extent of low-fre

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17

Arnal, Nicholas Christian. "A Study on 2.45 GHz Bandpass Filters Fabricated With Additive Manufacturing." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5635.

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Square open loop resonator (SOLR) bandpass filters fabricated with additive manufacturing techniques are presented and studied. One filter contains novel 3D capacitive plates used to enhance resonator coupling. The filters are centered at 2.45 GHz and loaded with capacitors for miniaturization as low as 21% that of a conventional SOLR bandpass filter. The pass-band insertion loss of the filters ranges from 3.8 dB to 5.5 dB and the 3 dB bandwidth ranges from 180 MHz to 250 MHz. Also, degradation in the effective conductivity of printed ink as a function of substrate roughness is analyzed. Final

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18

Lin, Ying-hsin, and 林映忻. "Dual-Band Bandpass Filter Design Using Open-Loop Resonators." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/07457677608760990893.

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碩士<br>國立中央大學<br>電機工程研究所<br>97<br>Dual-band filters designed for IEEE 802.11 and Bluetooth applications will be presented in this thesis. Generally, there are three main problems for filters with relatively large ratio of passband center frequencies: high insertion loss (more than 3dB), high return loss (less than -10dB) and bad selectivity. A new design of a compact dual-band bandpass filter using two different type resonators which are microstrip open-loop resonators and defected ground structure open-loop resonators is proposed and investigated in this paper. The proposed filter is composed

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19

Chen, Hsin-Hsun, and 陳信勳. "Dual-Band Bandpass Filter Design Using Open-Loop Resonators." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/85044777315883972892.

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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 dual-band bandpass filter which is combined by two single-band bandpass filters with open-loop resonators will have the advantage of easy design. Moreover, the asymmetric tapping feedline can create transmission zeros in the frequency response of the filter. In this thesis, the square and folded open-loop resonators are used to design the 2.6/3.55-GHz dual-band bandpass filters. In this thesis, the theory of the design of bandpass filter using open-loop resonators is analyzed firstly. Next, the influences of the asymmetric tapping feedline on the frequency

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20

Chang, Kai-Chien, and 張鎧建. "Bandpass Filter Design Using Dual-Mode Open-Loop Resonators." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/11951769262648747462.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>101<br>The bandpass filters designed using the dual-mode open-loop resonators will have the advantages of compact size and introduce one transmission zero which is located at the lower or upper stopband. In this thesis, the dual-mode open-loop resonators are used to design the bandpass filters which have two separated transmission zeros, each of them is located at the lower and upper stopband, respectively. In this thesis, the characteristics of the dual-mode open-loop resonators will be analyzed firstly. Next, the theory of the design of the bandpass filter using

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21

Yeh, Chin-Hung, and 葉晉宏. "Dual-Band Bandpass Filter Design Using Slow-Wave Open-Loop Resonators." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/7p888r.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>102<br>The design of the dual-band bandpass filter using the slow-wave open-loopresonators will have several advantages, such as the controllable resonant frequency and the compact size. In this thesis, the conventional and slow-wave open-loop resonators are used to design the 2.4/5.2-GHz dual-band bandpass filters. In this thesis, the characteristics of the conventional and slow-wave open-loop resonators will be analyzed firstly. Next, the theory of the design of dual-band bandpass filter using the conventional and slow-wave open-loop resonators are studied. Moreo

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22

Li, Man-Ho, and 李文豪. "Dual-Band Bandpass Filter Design Using Stub-Loaded Open-Loop Resonators." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/85714970651228564817.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>99<br>The dual-band bandpass filter designed by stub-loaded open-loop resonators will have the advantages of compact size and controllable resonant frequency. In this thesis, the stub-loaded open-loop resonators are used to design the 2.45/5.25-GHz dual-band bandpass filters. In this thesis, the theory of the design of dual-bandpass filter using stub-loaded open-loop resonators is analyzed firstly. Next, the dual-band bandpass filters with electric and mixed coupling stub-loaded open-loop resonators are designed and realized, respectively. Finally, the characteristi

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23

Chen, Deng Jun, and 陳登俊. "Harmonic Suppressed Bandpass Filter Using Coupled Triangular Open-Loop Stepped-Impedance Resonators." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/65344339889949160611.

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碩士<br>長庚大學<br>電子工程學研究所<br>97<br>Abstract In modern mobile communication systems, the bandpss filters with suppressed spurious responses are always required to improve frequency selectivity in RF front ends. The bandpss filters play an important role in the communication systems. This thesis presents two types of open-loop resonators structure, the proposed structure provides a good ability in spurious suppression. The open-loop stepped-impedance resonator can create transmission zeros to suppress multi-spurious responses in upper stopband. A three-pole Chebyshev filter and a four-pole sele

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24

Chang, Chia-wei, and 張家瑋. "Design of GSM Dual-Band Pass Microstrip Filters Using Open-Loop Resonators." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/70187977262428358090.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>97<br>To produce a dual-band pass microstrip filter, a circuit designer must understand determine the location that suppression oscillation frequencies of resonators and takes place and the coupling structure of resonators, and next have to overcomesolve the match problem of dual bands in the input and output ends. In order to solve the match problem, an effective design method using a quarter-wavelength impedance converter and a correlation formula of external quality factor is proposed in this study. The uniform impedance square resonator is used to design the d

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25

Shu-HaoChang and 張書豪. "The Effect of Open-Looped Resonators on Suppression of Cross-Talk of Multi-Channel Microstrip Lines." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/r62585.

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碩士<br>國立成功大學<br>電機工程學系<br>105<br>Cross-talk is an important issue for the signal integrity of high frequency, high speed and multiple signal-transmission-lines in modern electronic products. Usually, 3W rule and guard trace between neighboring signal-lines are applied to reduce or suppress the effect of cross-talk. Both methods suffer a drawback that the effect of cross-talk increases with frequency. To alleviate the problem, open-looped resonators were introduced between signal lines recently and analysis showed that cross-talk could be greatly suppressed in low-frequency range and increased

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26

Wu, Jhong-Wei, and 吳鍾緯. "Analysis of the Open-Slot Resonator." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/dcbscx.

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碩士<br>國立臺南大學<br>電機工程學系碩博士班<br>103<br>In this thesis, the frequency-response characteristics of the stepped-impedance open-slot resonator, such as resonance condition and spurious harmonic, have been shown. Unlike the conventional slotted-ground-plane resonator with a half-wavelength, the length of this proposed structure is only a quarter-wavelength long so that compactness can be achieved. The technique of size reduction for the resonator is furthermore presented by modifying the impedance ratio of the stepped-impedance open-slot segment. Owing to the semi-ground plane, decrease of the qualit

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27

Moreno, Aviles Hugo Oswaldo, Massa Giuseppe Di, Sandra Costanzo, and Sergio Greco. "Microwave Open Resonator for Complex Surface Characterization." Thesis, 2013. http://hdl.handle.net/10955/866.

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28

Chen, Yih-Jang, and 陳奕璋. "Highly Selective Microstrip Square Open-loop Resonator Filters." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/27537022104706247795.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>89<br>In this thesis, we use the quasi-elliptic filter synthesis method, which produces a pair of zeros at finite frequencies to design highly selective bandpass filters. In addition, we use the microstrip square open-loop resonator as a basic unit to implement this kind of filter. We take advantage of cross coupling property of appropriately arranged resonators to produce a pair of finite frequency zeros. The key of designing this filter is to control the coupling and coupling character between two resonators precisely. Hence three basic resonator-coupling structure

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29

Lin, Pao-an, and 林保安. "A study of the property of an open-end resonator." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/94226946896989588625.

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碩士<br>國立清華大學<br>物理學系<br>87<br>Fom the view of pure math, to study an open resonator is a problem of solving Maxwell equation with boundary condition. From the view of pure physics, we can understand and learn the property of wave by studying this problem. And we can also have deeper view about the phenomenon of resonation. In fact ,there are many kinds of resonation and they have some common properties. The most important character can be analyzed by using spectrum analysis. And we have many discussions about this technique. In

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30

Liu, Sung-Kao, and 劉松高. "Investigation on Permittivity of Dielectric Material using an Open Microwave Resonator." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/08753768225145311693.

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31

Shu, Li-Yi, and 許儷議. "Investigation on Measurement of dielectric constant using an Open Microwave Resonator." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/80992244268504182421.

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32

Wang, Ya-Ying, and 王雅瑩. "A New Dual-Band Antenna Utilizing Open-Loop Resonator for WLAN Applications." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/836npa.

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碩士<br>國立交通大學<br>電信工程系所<br>92<br>In this thesis, we propose a novel design method for multi-band antenna. We utilize the concept of λ/2 open-loop resonator used in microwave filter frequently, and combine this concept with the resonant antenna. This novel antenna adopts two different resonant types operating two different frequencies. One is the conventional inverted-L monopole for higher operating band, and the other is λ/2 open-loop resonator for lower operating band. As these two different resonant types coupling each other, this antenna only need one feed network to produce dual-band purpos

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33

Hsieh, Ping-Yueh, and 謝秉岳. "Compact Hairpin Resonator Shunt Open Stub Bandpass Filters with Dual-Band Response and Wide Upper Stopband." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/31928293205617241527.

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碩士<br>國立交通大學<br>電信工程系所<br>97<br>Compact bandpass filters are devised with a dual-passband response and a wide upper stopband based on hairpin resonators with three shunt open stubs. One stub is tapped at the center and two are allocated on both sides symmetrically. By adjusting the stub lengths, all resonators are designed to have two identical leading resonant frequencies but different higher-order ones. To enhance the rejection level and extend the upper stopband, the transmission zeros created by the tap structures and the coupled-line stage are used to eliminate the remaining leading unwan

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34

-Wen, Hsien, and 劉獻文. "Using Open Loop Resonator to Design Bandpass Filters with Wide Stop Band Suppression or Dual Band Property." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/14182859446165143862.

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碩士<br>逢甲大學<br>通訊工程所<br>96<br>This paper proposed the filters of transceiver for GSM, WLAN, WiMAX application. As we know Microwave filters play an important role in the whole system. In order to improve the performance of wireless transceiver, we combine (Step Impedance Resonator (SIR) with open loop resonator to design filters. We found better harmonic suppression than traditional design by analysing different ratio of length of stubs in SIR. Obviously, it is suitable to shift first harmonic frequency as well. Therefore, we proposed two structures of filters, one is wide stop-band bandpass f

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35

You-RenWang and 王友仁. "Design and Implementation of Ultra-Low Frequency Open Complementary Split-Ring Resonator for Whole Blood Coagulation Time Detection." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/whx87v.

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碩士<br>國立成功大學<br>電機工程學系<br>104<br>This thesis presents applying microwave sensors based on open complementary split ring resonators (OCSRRs) design to measure the blood coagulation time of the whole blood, which is the first time proof that a microwave wave plane resonance method can be effectively applied to detect the blood coagulation time. The S-parameters were recorded and the frequency deviation was computed using interference-suppression algorithm to detect the slight variation of the permittivity during clotting process. Different from the current well-known methods of blood coagulation

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36

Lin, Chih-Yuan, and 林志遠. "Design of Open Loop Multiple Split-Ring Resonator Voltage-Controlled Oscillator and Wide-Operation Range ÷ 3 Injection-Locked Frequency Divider." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/6av8q9.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>102<br>The important blocks in the phase locked loop (PLL) are the voltage controlled oscillator (VCO) and the divider circuit. The most power consumption of PLL consumes in VCO and divider. The VCO is requested a low phase-noise to avoid corrupting the mixer-converted signal by close interfering tones for VCO circuit, and the Figure of Merit (FOM) of VCO can be determined by it’s performance. Firstly, this thesis designs complementary Colpitts voltage controlled oscillator, A 0.7GHz Colpitts oscillator is designed and implemented in a 0.18μm CMOS 1P6M process. It

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Chou, Shu-An, and 周書安. "Low Noise Generation of RFI Suppression Filter for Power Trace by Using Quarter-Wavelength Open-Stub Resonator in Multilayered High-Speed Digital PCB." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/85740803645831823860.

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Анотація:

碩士<br>中原大學<br>通訊工程碩士學位學程<br>103<br>This work proposes low noise generation radiofrequency interference (RFI) noise suppression filter for a power trace that is based on a quarter-wavelength open-stub resonator (QWOSR) in a multilayered high-speed digital PCB (printed circuit board). RFI noise with frequencies at 2.4GHz and 5GHz is considered. The proposed filter structure is a four-layer PCB. The low noise generation includes the following schemes. The trace of the QWOSR is a stripline on the third layer. Four ground vias are added adjacent to the QWOSR via, which is short. Electromagnetic (EM

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