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Дисертації з теми "ZERODHA"

Автор: Grafiati

Опубліковано: 13 лютого 2024

Оновлено: 25 липня 2025

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1

Masud, Muhammad Mubeen. "Zeroth Order Resonator (ZOR) Based RFID Antenna Design." Diss., North Dakota State University, 2014. https://hdl.handle.net/10365/27485.

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Meander-line and multi-layer antennas have been used extensively to design compact UHF radio frequency identification (RFID) tags; however the overall size reduction of meander-line antennas is limited by the amount of parasitic inductance that can be introduced by each meander-line segment, and multi-layer antennas can be too costly. In this study, a new compact antenna topology for passive UHF RFID tags based on zeroth order resonant (ZOR) design techniques is presented. The antenna consists of lossy coplanar conductors and either inter-connected inter-digital capacitor (IDC) or shunt induct

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2

Adusumilli, Pallavi. "Effects of Mutual Coupling on Zeroth Order Resonator (ZOR) Antennas." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1459439568.

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3

Otoboni, José Antonio. "Estudo da usinabilidade do ZERODUR® no torneamento de ultraprecisão com ferramenta de diamante de ponta única." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/18/18146/tde-31102013-171149/.

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Alguns espelhos usados em câmeras de satélite devem apresentar qualidade superficial elevada. Eles são normalmente fabricados em ZERODUR®, um material vitrocerâmico, por meio de processos abrasivos. Observou-se que a qualidade da superfície do material deteriora-se algum tempo após a usinagem, necessitando assim de retrabalho. A causa mais influente desse fenômeno é o crescimento de trincas devido à corrosão sobtensão. Estas trincas são geradas pelas condições impostas nos processos convencionais de lapidação e polimento. Este trabalho apresenta um estudo sobre a usinabilidade do ZERODUR® util

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4

Henault, Bastien. "Identification des processus physico-chimiques à l’origine des défauts locaux des surfaces polies optique et superpolies." Thesis, Université Clermont Auvergne‎ (2017-2020), 2018. http://www.theses.fr/2018CLFAC090.

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Ce travail de thèse porte sur l’étude des mécanismes physico-chimiques mis en jeu lors du polissage mécano-chimique du Zerodur® (vitrocéramique) par un abrasif à base d’oxydes de cérium. Les défauts obtenus à l’issu du polissage ont été caractérisés en microscopie optique et par microscopie à force atomique (AFM). Il en ressort deux principales populations, à savoir des rayures de type « fines » (longitudinales et continues) causées par des débris de matière polie. La seconde est la typologie « rayure éclat » (fractures perpendiculaires au sens de la rayure) causées par des agglomérats d’abras

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5

Haggans, Charles Wesley. "Polarization properties of zeroth order surface-relief gratings with application to optical storage heads." Diss., The University of Arizona, 1992. http://hdl.handle.net/10150/186030.

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A rigorous model for treating diffraction from arbitrary profile surface-relief gratings is developed. This model is valid for conical incidence geometries and elliptically polarized incident beams. The model is based on the coupled-wave method of Moharam and Gaylord (J. Opt. Soc. Am. 73, 1105-1112 (1983); J. Opt. Soc. Am. 72, 1385-1392 (1982)). The slow convergence of this model for p polarized incident light is analyzed. The source of this slow convergence is determined to be the use of Fourier series expansions for the permittivity and fields in the grating region. The polarization and ener

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6

Zhao, Bo. "Composite Right/Left-Handed (CRLH) Microstrip Resonant Antennas." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1123784412.

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7

Hansen, Glenn Alexander. "TWO ULTRAPRECISE THERMAL EXPANSION INVESTIGATIONS: SODIUM SILICATE - A LOW-EXPANSION CEMENT, AND THERMAL EXPANSION UNIFORMITY OF ZERODUR." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/291814.

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8

Shi, Ruirong. "Zeroth-Order Resonator (ZOR) Antenna Using Composite Right/Left-Handed (CRLH ) Microstrip Transmission Line (TL)." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1301714086.

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9

Lobos, Fernández Mauricio [Verfasser]. "Homogenization and materials design of mechanical properties of textured materials based on zeroth-, first- and second-order bounds of linear behavior / Mauricio Lobos Fernández." Karlsruhe : KIT Scientific Publishing, 2018. http://www.ksp.kit.edu.

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10

Okyay, Ahmet. "Sliding Mode Control Algorithm Development For Anti-lock Brake System." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613568/index.pdf.

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In this thesis, a sliding mode controller employing a new sliding surface for antilock brake system (ABS) is proposed, its stability is proven formally and its performance is compared with existing sliding mode controllers. The new sliding mode controller uses the integral-derivative surface, which includes error, its derivative and its integral, all at the same time. This and the already existing derivative surface, which includes error and its derivative only, are named zerothorder sliding surfaces. Their stability analysis is done using first-order auxiliary surfaces. Auxiliary surfaces equ

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11

Söderberg, Alexander. "Browsing the Web of Amplitudes." Thesis, Uppsala universitet, Teoretisk fysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-309989.

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We begin by studying field-theory amplitude relations such as the Kleiss-Kuijf, Bern-Carrasco-Johansson, Kawai-Lewellen-Tye and the double copy construction, which are important ingredients in this thesis. Going beyond the field-theory limit we study how the gauge-sector of the heterotic string relates to type I amplitudes through the single valued projection of multiple zeta values. At low energy and for a U(1) gauge group (a single brane) the type I amplitudes are generated by the Born-Infeld action, whereas the corresponding heterotic amplitudes vanish in this limit. As a simple exercise we

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12

Feng, Le. "An in-depth examination of two-dimensional Laplace inversion and application to three-dimensional holography." University of Dayton / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1406814392.

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13

Javora, Petr. "Návrh planárních anténních struktur z metamateriálů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218023.

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The thesis deals with basic principles of metamaterials, which exhibit unusual properties in microwave applications (e.g., negative permittivity and permeability). Different type of metamaterial antennas and parameters of such antennas are described in the thesis.

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14

Cocheteau, Natacha. "Caractérisation et modélisation d'une adhérence moléculaire renforcée." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4700/document.

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Le collage par adhérence moléculaire est un collage basé sur la mise en contact de deux surfaces sans l'utilisation de colle ou matériaux additionnels. Ce procédé de collage est utilisé dans de nombreuses applications, notamment dans les domaines de l'optique terrestre et spatiale. Bien qu'un prototype ait déjà passé avec succès l'environnement spatial - où les contraintes d'utilisations sont différentes de celles rencontrées sur Terre - la spatialisation de cette technologie nécessite une caractérisation plus fine du procédé ainsi qu'une amélioration de la tenue mécanique des interfaces adhér

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15

GUPTA, SHUBHAM. "DRAFT IPO PROSPECTUS: ZERODHA." Thesis, 2023. http://dspace.dtu.ac.in:8080/jspui/handle/repository/20471.

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This major research project is made out with the learnings and understanding that I made through the MBA. As, I have done my major in finance, so most of this project is covering the finance part. In this project, I tried my best to cover all the topics on which a company should work while bring its IPO. Launching an IPO is a remarkable step in the journey of a company. When a company going through an IPO, it becomes more recognizable and get better deal from the potential clients through the press release and financial media coverage. As the companies have the obligation to publicly dis

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16

Lu, Yi-Wun, and 陸怡妏. "Subsurface Damage in Precision Grinding of Zerodur." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/79145667979053937846.

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碩士<br>國立臺灣大學<br>機械工程學研究所<br>100<br>Zerodur is a glass-ceramic made by Schott AG. With its very low coefficient of expansion, it can be used to produce mirrors which retain acceptable figures in extremely cold environments such as satellite. The primary subject of this study is to reach the characteristics of subsurface damage (SSD) in diamond wheels precision grinding of Zerodur, and establish the model of SSD in Zerodur using different grinding parameters, e.g. depth of cut, speed, feed rate, and different grinding wheel conditions, e.g. grain size and wheel bond. The research results about t

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17

Liou, Dzen-Sor, and 劉增受. "Study of Small holes on Zerodur Triangular Measurement." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/s8hd3z.

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碩士<br>國立臺北科技大學<br>製造科技研究所<br>102<br>This study focuses on high aspect-ratio triangular small holes measurement on Zerodur material. In this paper, to measure the geometry of the high-aspct-ratio small holes, a long small spherical stylus tips was designed and attached onto the CMM’s probing head. However, the experimental results show that the undesirable contact will affect the measurement significantly by conventional triggering system of CMM (Renishaw PH-9A). In order to evaluate the quality of the small holes, in this study, the measuring optical scope was used to measure the triangular sm

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18

Hsu, Guo-Mao, and 許國懋. "SIMPLIFIED CPW-FED BROADBAND ANTENNA INVOLVING THE ZEROTH ORDER MODE." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/md7k3n.

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碩士<br>大同大學<br>通訊工程研究所<br>103<br>This thesis describes the broadband antenna which is fed with the simplified coplanar waveguide (CPW) in the zeroth order mode, and is based on CRLH-TL (composite right/left handed transmission line ) theory. It is built on the upper surface of an FR4 substrate with thickness of 1.6 mm. A straight shorted strip is connected between the center conductor and the ground plane as a loaded parallel element. To increase the parallel inductance and to save some space, the straight strip can be replaced by a meandered strip. This straight strip will excite the resonance

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19

Reddy, Aavula Sumanth. "Design of Compact Zeroth-Order Resonant Antenna Based on CRLH TL." Thesis, 2013. http://ethesis.nitrkl.ac.in/4815/1/211EC4153.pdf.

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Metamaterial (MTM) Based Antennas are class of antennas inspired by metamaterials to enhance the capability of antenna.One of the new applications is the Zeroth-Order Resonant (ZOR) antenna, which is based on Composite Right Left Handed (CRLH) transmission lines(TLs) periodic structures. In addition, ZOR antenna is easy to fabricate and allows design freedoms. Small physical size, low cost, broad bandwidth & good efficiency are desirable features for an integrated antenna. This thesis presents the design and analysis of Asymmetric compact coplanar waveguide(ACPW)-fed zeroth-order resonant (ZOR

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20

Li, Chin-Yuan, and 李金源. "Dual-Band Zeroth-Order Antenna Using Composite Right/Left-Handed Transmission Lines." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/38604475544491480616.

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碩士<br>長庚大學<br>電子工程學研究所<br>97<br>In this thesis , arbitrary dual-band antennas are presented by using zeroth , positive and negative order mode oscillating by composite right/left handed transmission lines (CRLH TLs). In the first part of this thesis, we introduce metamaterial and left-hand material . Then we present the concept of CRLH TLs in balanced and unbalanced forms. We also discuss zeroth order mode oscillator in the end of this section. In the second part of this thesis, we use ladders of the capacitors and inductors to approximate the characteristics of CRLH TLs. Then we exp

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21

Chang, Yu-Wei, and 張祐瑋. "A Study of Self-Oscillating Active Integrated Antennas using Zeroth-order Resonator." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/mq78yg.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>104<br>A novel metamaterial-based self-oscillating active integrated antenna (AIA) using zeroth-order resonators is developed in this thesis. For the first time, the zeroth-order resonators are connected to a cross-coupled pair to stabilize the oscillation near the zeroth-order resonance of a metamaterial resonator. Two designs are developed in this thesis. First of all, a novel self-oscillating AIA based on zeroth-order resonators is proposed. The connecting line between the gate and the other drain terminals in a cross-coupled pair is broken up to insert a zer

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22

Balu, Narayana Srinivasan. "Propagation Prediction Over Random Rough Surface By Zeroth Order Induced Current Density." 2014. https://scholarworks.umass.edu/masters_theses_2/129.

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Electromagnetic wave propagation over random sea surfaces is a classical problem of interest for the Navy, and significant research has been done over the years. Here we make use of numerical and analytical methods to predict the propagation of microwaves over random rough surface. The numerical approach involves utilization of the direct solution (using Volterra integral equation of the second kind) to currents induced on a rough surface due to forward propagating waves to compute the scattered field. The mean scattered field is computed using the Monte-Carlo method. Since the exact solution

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23

Chiu, Edward D., and 邱冠諺. "Dual-Band Dual-Zeroth Order Resonant Antenna using Open and Short Terminations." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/78556436568929125874.

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碩士<br>國立交通大學<br>電機學院電信學程<br>102<br>In this thesis, a dual band antenna design using dual zero-order resonance is proposed. General zeroth order resonant antenna (ZOA) using a zero-order and negative-order resonance to achieve dual band. It needs two units cell in cascade. The proposed ZOA reduces the cell number to one, which leads to the shrink of the antenna size. The design begins with the synthesization of the zero-order resonance unit cell, which is composed of an interdigital capacitor and short stub. Then, a well-designed termination circuits is proposed to enable simultaneous excitati

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24

Shih, Yi-Sen, and 施亦陞. "Miniaturized and Bandwidth-Enhanced Zeroth-Order Resonant Antenna Based on Short-Ended Structure." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/z83ja5.

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碩士<br>國立交通大學<br>電信工程研究所<br>102<br>In this thesis, two types of improvement on Composite Right/Left Handed transmission line short-ended zeroth-order resonant antenna are presented. First unit cell of antenna combines high impedance transmission with interdigital structure so as to reduce the antenna area. The second antenna using short-ended theory and lumped elements relation with Q factor to design the Q factor of unit cell lower so as to increase the antenna bandwidth. The first and two chapters introduce the applications, operation principle and theory of CRLH-TLs and ZOR. In the third cha

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25

Fu, Chun-Lin, and 傅俊霖. "Optimization of Heat Transfer Performance of the Zeroth-Level-Bifurcation Tree-Shaped Fins." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/35538979486726087802.

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碩士<br>大同大學<br>機械工程學系(所)<br>99<br>In this thesis, we investigate heat transfer performance of zeroth-level-bifurcation tree-shaped fins under the constraint of a fixed heat flux and the total volume of fins. We studied the effects of the number of fins (N), the orientation of fins, the width ratio between thin fins and the thick fin (D2/D1), the height of the thick fin (h/H), and Reynolds number (Re) on the thermal performance of tree fins. We find that increasing Reynolds number can enhance the heat transfer performance, but the improvement slows down as Reynolds number increases. Increasing

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26

Deng, En, and 鄧恩. "Novel Dual-Band Open-Ended Zeroth-Order Resonant Antenna and Switchable Multi-polarization Slot Antenna." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/31160573603268034901.

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碩士<br>國立交通大學<br>電信工程研究所<br>105<br>In this thesis, two types of antenna are presented. Among these two types of antenna, one of them is the dual-band zeroth-order antenna. The second one is multi-polarization antenna. The first two chapters introduce the basic theory. In the third chapter, it is a dual-band zeroth-order antenna, by using the theory of composite right/left handed to be zeroth-order, and different from the regular circuit to dual-band. Using CPW to increase its bandwidth. After fabricating this antenna on Ro 5880 62mil, it shows that the theory is workable. In the fourth chapter,

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27

Chen, Po-Wei, and 陳柏偉. "Asymmetric Coplanar Waveguide (ACPW) Zeroth-Order Resonant (ZOR) Antenna with High Efficiency and Bandwidth Enhancement." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/77798305499089596607.

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碩士<br>國立交通大學<br>電信工程研究所<br>100<br>In this paper, we propose the new type of zeroth-ordered antenna (ZOR antenna) based on composite right/left-handed transmission line (CRLH-TL). The feature of ZOR based on periodic structure is employed to reduce the antenna size. Therefore, the researches of ZOR antenna have gathered great importance in recent years. However, these antennas are suffered from narrow bandwidth generally such that it is hard to apply to wireless communication systems. This new type of CRLH-TL is based on asymmetric coplanar-waveguide (ACPW). ACPW is proposed to realize a bandwi

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28

Yang, Shu-Yen, and 楊樞彥. "Bandwidth and Efficiency Enhancement of Miniaturized Antennas by Merging Dual-Resonances and Bisecting Zeroth Order Resonator Antennas." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/61298356238360159780.

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碩士<br>國立交通大學<br>電信工程研究所<br>100<br>In this thesis, we work on finding methods to improve the disadvantages of electrically small antenna (ESA) such as narrow bandwidth and low efficiency at the same time. The research is divided into two parts. The first branch investigates merging two resonances which have higher and lower efficiency, respectively. After merging the two resonances, the efficiency and bandwidth of the one with lower efficiency increased, and the bandwidth of higher one also extended while efficiency is almost fixed. To practice this mechanism, a small planar microstrip antenna

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29

Brichard, Joelle. "On Using Graphical Calculi: Centers, Zeroth Hochschild Homology and Possible Compositions of Induction and Restriction Functors in Various Diagrammatical Algebras." Thesis, 2011. https://doi.org/10.7916/D87H1RKG.

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This thesis is divided into three chapters, each using certain graphical calculus in a slightly different way. In the first chapter, we compute the dimension of the center of the 0-Hecke algebra Hn and of the Nilcoxeter algebra NCn using a calculus of diagrams on the Moebius band. In the case of the Nilcoxeter algebra, this calculus is shown to produce a basis for Z(NCn) and the table of multiplication in this basis is shown to be trivial. We conjecture that a basis for Z(Hn) can also be obtained in a specic way from this topological calculus. In the second chapter, we also use a calculus of d

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30

Yang, Kai-Chieh, and 楊凱傑. "Development of an intelligent horizontal micro machine tool with high-frequency vibration assisted machining and research of nano milling-grinding on Zerodur® glass ceramic." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/4tzbnz.

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31

Liu, Chun-Chih, and 劉峻志. "Application of Composite Right/Left-Handed (CRLH) Transmission Line for the Dual-arm-spiral Zeroth-order Resonant Antenna and Coupled-line-directional-coupler Diplexer." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/12999661866422527953.

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碩士<br>國立交通大學<br>電信工程研究所<br>101<br>This thesis dedicates to the applications of composite right/left-handed (CRLH) transmission line, and it consists of two parts. A miniaturized and zeroth-order-resonant (ZOR) antenna based on dual-arm spiral structure is presented in the first part. The second part introduces a novel bandwidth-engineered diplexer realized by a symmetric CRLH coupled-line directional coupler with complete forward and backward couplings. Widespread use of the wireless communications in our daily life demands the development of compact and portable electronic products. As an ess

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