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Dissertations / Theses on the topic 'Microstrip slot antenna'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

Smith, Peter. "Moment method analysis of microstrip/stripline fed slot radiators including polarisation agility." Thesis, Heriot-Watt University, 1995. http://hdl.handle.net/10399/744.

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2

Sener, Goker. "Analysis And Design Of Microstrip Patch Antennas With Arbitrary Slot Shapes." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613161/index.pdf.

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A new method is proposed that provides simple and effcient design and analysis algorithm for microstrip antennas with arbitrary patch shapes. The proposed procedure uses the mutiport network model (MNM) where the antenna is considered as a cavity bounded by perfect electric conductors on the top and the bottom surfaces and perfect magnetic conductor on the side surfaces. Ports are defined along the periphery of the patch, and the impedance matrix representing the voltage induced at one port due to a current source at another port, is obtained through the use of the 2-D Green&rsquo<br>s functio

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3

Cirineo, Tony, Rick Davis, Marvin Byrd, and Scott Kujiraoka. "Design and Development of a Thin Conformal C-Band Telemetry Antenna for a Small Diameter Missile." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595618.

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ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada<br>This paper will present the preliminary design of a C-Band telemetry antenna mounted conformal to a small diameter missile. Various design studies and options will be explored leading to a preliminary design that best meets system requirements. Simulation results are presented for various options and the rationale for down selection to final configuration is discussed.

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4

Mustafa, Incebacak. "Design Of Series-fed Printed Slot Antenna Arrays Excited By Microstrip Lines." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612447/index.pdf.

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Series-fed printed slot antenna arrays excited by microstrip lines are low profile, easy to manufacture, low cost structures that found use in applications that doesn&rsquo<br>t require high power levels with having advantage of easy integration with microwave front-end circuitry. In this thesis, design and analysis of microstrip line fed slot antenna arrays are investigated. First an equivalent circuit model that ignores mutual coupling effects between slots is studied. A 6-element array is designed by using this equivalent circuit model. From the measurement and electromagnetic simulation re

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5

Yildirim, Meltem. "Design Of Dual Polarized Wideband Microstrip Antennas." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612023/index.pdf.

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In this thesis, a wideband dual polarized microstrip antenna is designed, manufactured and measured. Slot coupled patch antenna structure is considered in order to achieve the wideband characteristic. Although rectangular shaped slot coupled patch antennas are widely used in most of the applications, their utilization in dual polarized antenna structures is not feasible due to space limitations regarding the positioning of two separate coupling slots for each polarization. For a rectangular slot, the parameter that affects the amount of coupling is the slot length. On the other hand when a H-s

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6

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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7

Zivanovic, Bojana. "Series-Fed Aperture-Coupled Microstrip Antennas and Arrays." Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4425.

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The focus of this dissertation is on the development and circuit modeling of planar series-fed, linear- and circular-polarized microstrip aperture-coupled antennas and N-element arrays operating in C-band. These arrays were designed to be used as part of airborne or land-based frequency-hopped communication systems. One of the main objectives of this work was to maintain a constant beam angle over the frequency band of operation. In order to achieve constant beam pointing versus frequency, an anti-symmetric series-fed approach using lumped-element circuit models was developed. This series feed

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8

Agbor, Ikechukwu Wilson. "Adaptive Slot Location in the Design of Slotted Microstrip Multi-Frequency Antenna for Radionavigation and Radiolocation Applications." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1707319/.

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In light of incidents and concerns regarding the vulnerability of the global positioning system (GPS), the main purpose of the thesis is to look at alternative systems for radio guidance and to put up a serious study on such alternatives with receive and transmit antenna. There is also the need to design such antennas with multiple frequencies to offer robustness in the unlikely event that such adversarial attacks on the GPS happen. The basis on which such alternative antennas are designed is a slotted microstrip. The characteristics of the slot or slots on the microstrip are analyzed by mappi

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9

Lindberg, Peter. "Wideband Active and Passive Antenna Solutions for Handheld Terminals." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7445.

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10

Hermány, Roman. "Vícevrstvá textilní anténní řada." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377157.

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Thesis focuses on the design and development of three possible methods to power the serial patch array and optimization of the chosen design. The antenna array is conceived as a multi-layered structure formed on a 3D textile substrate. The objective of this work is to identify the best possible configuration of antenna array for the use in automotive and aerospace industry. The first concept – array coupled by near microstrip line – proved in the case of the more serial elements as non-functional. The second concept – aperture coupled array – is unsuitable for use in close proximity to the ele

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11

La, Rosa Henrry. "Investigation of a Rectenna element for infrared and millimeter wave application." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002221.

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12

Mikulášek, Tomáš. "Mikropáskové flíčkové antény napájené vlnovodem integrovaným do substrátu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-233587.

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Dizertační práce je zaměřena na výzkum mikropáskových flíčkových antén a anténních řad napájených vlnovodem integrovaným do substrátu (SIW). Využitím vlnovodu integrovaného do substrátu pro napájení mikropáskové flíčkové antény dochází ke kombinaci výhodných vlastností obou struktur. Výsledkem je kompaktní anténní struktura, jejíž napájecí vedení neprodukuje parazitní záření a neovlivňuje tak vyzařovací charakteristiku antény. Práci lze z věcného hlediska rozdělit do dvou částí. První část práce (kapitola 2) je zaměřena na návrh flíčkových antén a jejich navázání na vlnovod integrovaný do subs

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13

Ballikaya, Elif. "Analysis Of Slot Coupled Microstrip Patch Antennas." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609094/index.pdf.

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Method of Moments (MoM)/Green&rsquo<br>s function formulation is developed for the analysis of electromagnetic radiation from planar rectangular microstrip antennas with different feeding techniques. Investigated structures are microstrip line fed patch antenna, proximity coupled patch antenna and slot coupled patch antenna. For all these structures equivalent problems are defined. Then, integral equations where currents are the unknowns are obtained from boundary conditions and by using spectral domain representation of Green&rsquo<br>s functions. Finally, MoM is applied to convert these inte

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14

Iseri, Kadir. "Analysis Of Dual-polarized Aperture-coupled Microstrip Antennas With H-shaped Slots And Equivalent Circuit Modeling Of H-shaped Slots." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614527/index.pdf.

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This thesis includes the design, production and measurement of a wideband dualpolarized X-band aperture-coupled microstrip patch antenna. The wideband and dual-polarized operation is achieved through the use of H-shaped coupling slots. Therefore, the equivalent circuit modeling of a microstrip line fed H-shaped slot is also studied in this thesis. A step-by-step procedure is followed during the design process of the dual-polarized aperture-coupled microstrip antenna. First, an aperture-coupled microstrip antenna with a single rectangular slot, that exhibits a wideband characteristic for single

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15

Akhavan, Haj Ghadir. "Analysis of single and coupled microstrip-fed slot antennas." Thesis, University of Essex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.339226.

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16

Weigel, Filip. "Rekonfigurovatelná štěrbinová anténní řada." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242136.

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This master's thesis deals with the basic principles of slot antennas. Models of antennas were simulated in a selected electromagnetic simulator CST MICROWAVE STUDIO (CST MWS). There are several models of slot antennas which are optimized for communication in the car at a frequency 8 GHz.

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17

Cihangir, Aykut. "Radiation Characteristic Analysis Of Tapered Slot Antennas." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612367/index.pdf.

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The aim of this study is to investigate the effects of changes in the physical parameters of tapered slot antennas (TSA) on their radiation characteristics and also to explore the possibility of reconfiguration in the radiation pattern of TSA by switching between two different types of tapering. There are mainly three physical parameters that affect the radiation pattern of TSAs. These are antenna length, aperture width and the ground extension. After designing a wideband microstrip line to slot line transition, the effect of antenna parameter variations on the beamwidth and sidelobe level of

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18

Matin, Mohammad Abdul. "Design and analysis of slot loaded microstrip patch antennas for ultrawideband (UWB) systems." Thesis, University of Newcastle Upon Tyne, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437987.

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19

Goksu, Mesut. "Analysis Of Slot Coupled Patch Antennas Using Closed Form Green." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610996/index.pdf.

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In this thesis, an analysis technique for the slot coupled patch antennas using MoM in conjunction with the closed form Green&rsquo<br>s functions is presented. Slot coupled patch antennas are fed by a microstrip open stub which is coupled to the patch through an electrically small slot. Current distributions over the microstrip line, slot line and the patch are represented by rooftop basis functions. First, a relatively simple structure, microstrip coupled slot line is investigated using the proposed technique. Then the method is extended to the slot coupled patch antenna geometry. By using t

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20

Šmarda, Marek. "Miniaturní anténa pro mobilní aplikace." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219975.

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This work deals with the most famous constructions of planar antennas. The work analyses selected methods of connecting planar antennas' charging with the possibility of impedance adaptation. An important part of the work consists of description of techniques for increasing bandwidth and conversely techniques for reducing the dimensions which are important for the design of planar antennas for mobile devices. The antennas were designed by means of theoretical basis and their properties were examined in the electromagnetic field simulator. The selected antenna model was constructed and its para

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21

Tong, Chin Hong Matthew. "System study and design of broad-band U-Slot microstrip patch antennas for aperstructures and opportunistic arrays." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2005. http://library.nps.navy.mil/uhtbin/hyperion/05Dec%5FTong.pdf.

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Thesis (M.S. in Combat Systems Technology)--Naval Postgraduate School, December 2005.<br>Thesis Advisor(s): David C. Jenn, Donald L. Walters. Includes bibliographical references (p.83-85). Also available online.

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22

Komulainen, M. (Mikko). "Bandwidth enhanced antennas for mobile terminals and multilayer ceramic packages." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514290879.

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Abstract In this thesis, bandwidth (BW) enhanced antennas for mobile terminals and multilayer ceramic packages are presented. The thesis is divided into two parts. In the first part, electrically frequency-tunable mobile terminal antennas have been studied. The first three antennas presented were of a dual-band planar inverted-F type (PIFA) and were tuned to operate in frequency bands appropriate to the GSM850 (824–894 MHz), GSM900 (880–960 MHz), GSM1800 (1710–1880 MHz), GSM1900 (1850–1990 MHz) and UMTS (1920–2170 MHz) cellular telecommunication standards with RF PIN diode switches. The first

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23

ZHENG, RUI-GING, and 鄭瑞清. "Slot-coupled microstrip antenna arrays." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/19959493304377062070.

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24

Chang, Hsun-Pin, and 張訓斌. "Microstrip-Fed Microstrip-Slot Antenna for Mobile Handsets." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/21736063275300038658.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>97<br>A new planar multiband antenna with a low antenna height less than 0.06 λ/4 is proposed for moblie handset applications. The antenna comprises two half-wave dipole antennas and two slot antennas. It is fed by a microstrip line which couples the two half-wave strip dipole antennas and two tapered slot antennas on the ground plane. Our design can cover 10 bands including GSM850/GSM900/GSM1800/GSM1900/UMTS/GPS for cellular communication systems, WiMAX2.6/3.5/WLAN2.4/5 GHz for wireless network applications, and the navigation GPS system. The resonant frequ

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25

Huang, Tzung-Fang, and 黃宗訪. "CPW-fed slot and microstrip antenna analysis and slot antenna array design." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/15328082494886303293.

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博士<br>國立臺灣大學<br>電機工程學研究所<br>87<br>Slot and slot-coupled patch antennas fed by the coplanar waveguide are investigated by using the full-wave analysis based on the Galerkin''s moment method in the spectral domain approach in this dissertation. The coupling slot is etched on the conducting plane of the coplanar waveguide and placed in the direction perpendicular to the transmission line. The equivalent magnetic currents in the coupling slot and in the slots of the coplanar waveguide are all expanded by the subsectional rooftop basis functions, while the equivalent surface electric current densit

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26

Li, YiWei, and 李翊瑋. "Analysis and Design of Microstrip Slot Loop Antenna." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/93503038327963038285.

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碩士<br>淡江大學<br>電機工程學系<br>89<br>Microstrip antennas have the advantages of light weight, small size and low profile and had found wide applications in various EM areas in this two decades. In this thesis, the radiation characteristics of microstrip square slot loop antenna are investigated in details. Various compact square slot loop antennas of a wavelength and/or half wavelength are designed. These antennas can radiate in broadside and act in resonant mode, hence, they usually have limited impedance bandwidth. Several linearly polarized (LP) antennas fed by stripline and/or microstrip line are

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He, Jeng-Shiou, and 何政修. "Dual-band Broadband Annular-ring Slot Microstrip Antenna." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/d99hnu.

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碩士<br>中華技術學院<br>電子工程研究所碩士班<br>94<br>A dual-band broadband annular-ring slot microstrip antenna is designed. Its structure is simple. This antenna is analyzed and optimized by using the IE3D software. The annular-ring slot and coupled microstrip feed-line are built on the FR4 printed board. The two resonant frequencies of the proposed antenna are decided by the redius of the annular-ring slot. The prototype are fabricated and measured. The two resonant frequencies are 2.4GHz and 5.8GHz. At 2.4GHz, input impedance bandwidth is23.4% for the S11 < -10 dB, with the peak gain on the order of 8.6dBi.

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28

Lin, Jun-Hong, and 林峻宏. "The Study of Circular Slot Dual-band Microstrip Antenna." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/77a3g5.

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Fu-Mao, Hsieh, and 謝馥懋. "The Design of Microstrip-Line-Fed Printed Slot Antenna." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/74375620362534848658.

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碩士<br>南台科技大學<br>電子工程系<br>93<br>The novel designs of printed slot antennas for broadband characteristic have been investigated in this thesis. About this thesis, the designs of printed slot antennas all adopt the method of microstrip-line-fed, they can be classified into two main types of microstrip-line-fed isosceles triangular slot antenna and rectangular slot antenna, and impedance bandwidth of these proposed designs can achieved 77% and 104%, respectively. To begin with, the microstripline feed isosceles triangular slot antenna for broadband operation, the proposed antenna with a small rect

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30

KUMAR, RAVINDER. "IMPLEMENTATION OF CROSS-SHAPED SLOT IN COMPACT MICROSTRIP ANTENNA." Thesis, 2012. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15699.

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A compact cross-shaped slotted microstrip patch antenna is proposed for circularly polarized (CP) radiation. A symmetric, cross-shaped slot is embedded along one of the diagonal axes of the circular patch for CP radiation and antenna size reduction. The structure is asymmetric (unbalanced) along the diagonal axes. The overall size of the antenna with CP radiation can be reduced by cross shaped slot. The symmetric cross-shaped slot cut within the first quadrant of the circular patch. There are huge demands for the miniaturization of the mobile communications equipment. Microstrip circularly pol

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31

shih, han-rong, and 施漢嶸. "Suppression of Reflected Wave of a short Microstrip Leaky-Wave Antenna By Utilizing A Microstrip-Fed Slot Antenna." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/35153849634450751795.

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碩士<br>國立交通大學<br>電信工程系<br>89<br>In this thesis, the suppression of the reflected wave of microstrip leaky wave antenna is studied. A microstrip-fed slot antenna is integrated on the backside of the microstrip leaky wave antenna (MLWA) in order to suppress the reflected wave and leak the residual power. Three types of microstrip-fed slot antenna have been designed, which are: one wavelength slot antenna, microstrip-fed first higher-order mode slot antenna and microstrip-fed folded slot antenna. The above antennas are designed at X-band. The two different antenna modes are excited at the top and

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32

meng-shan, Chiang, and 蔣孟珊. "Study on active H-slot/T-coupled circular microstrip antenna." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/80240554413355985697.

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碩士<br>國防大學中正理工學院<br>電子工程研究所<br>92<br>In this thesis, using T-coupled feed line, H-slot, dual-polarized techniques and active integrated antenna to improve the conventional circular microstrip antenna, and applied for four 2.4GHz ISM-Band antennas. First, we make a study of circular microstrip antenna. Adding T-coupled feed line to achieve impedance matching. Then, we can improve the bandwidth and radiation gain of antenna by using H-slot to design an H-slot/T-coupled circular microstrip antenna. It has wideband and high radiation gain. Second, we can design a dual-polarized antenna by the symm

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33

Lin, Lawrence, and 林師銓. "Design of CPW-Fed Slot-Loaded Dual-Band Microstrip Antenna." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/31017310219036349225.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>90<br>This thesis presents the design of a slot-loaded microstrip antenna fed by a coplanar waveguide which provides dual-frequency operation by means of two narrow slots close to the patch edges. The two narrow slots strongly modify the current distribution of a patch antenna at the resonance. We investigated polarization planes、radiation properties and the effect of slot size, of the two operating frequencies, and use cavity model to calculate operating frequencies. Finally, we implemented a 2.4G Hz microstrip antenna fed by a coplanar waveguide and a slot-loaded d

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GIA, LA-WEI, and 茄拉威. "An analysis method for the linear microstrip slot antenna array." Thesis, 1989. http://ndltd.ncl.edu.tw/handle/44108068097720435977.

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JAIN, UPDESH. "DESIGN OF MICROSTRIP ANTENNA WITH VARIOUS SHAPE OF SLOT FOR SPECIFIC APPLICATION." Thesis, 2012. http://dspace.dtu.ac.in:8080/jspui/handle/repository/14028.

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Novel asymmetric-circular shaped slotted microstrip patch antennas are proposed for circularly polarized (CP) radiation and radio frequency identification (RFID) reader applications. A single-feed configuration based asymmetric-circular shaped slotted square microstrip patches are adopted to realize the compact circularly polarized microstrip antennas. The asymmetric-circular shaped slot(s) along the diagonal directions are embedded symmetrically onto a square microstrip patch for CP radiation and small antenna size. The CP radiation can be achieved by slightly asymmetric (unbalanced) patch al

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YU-TA, CHIEN, and 簡鈺達. "Implement of a Compact CPW-fed Square-Ring-Slot Coupled Microstrip Antenna." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/00540314211632209669.

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碩士<br>正修科技大學<br>電子工程研究所<br>93<br>In this paper, We have presented about the compact CPW-fed square-ring-slot coupled microstrip antenna. We have investigated the characteristics of the proposed compact CPW-fed square-ring-slot coupled microstrip antenna. The properties of return losses, frequencies and radiation pattens have shown in this thesis. We have also discussed the effects on slot-ring and ground-plane size of the proposed antenna. The theoretical results have obtained from simulation software, HFSS. The software package HFSS is based on the differential equation and the Finite Element

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Cheng, Hao, and 鄭浩. "Design of Dual-Band Microstrip Patch Antenna with Dual Cross-Slot for WLAN Application." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/h75xu8.

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碩士<br>景文科技大學<br>電子工程系電腦與通訊碩士班<br>102<br>In the thesis, we present Dual-Band Microstrip Patch Antenna with a Double Cross-Slot employed Microstrip line feeding as well as slot design to enhance impedance matching and Cross-Slot to increase 5GHz resonance frequency.We use short area to fill the turning point of slots or short line to the centers of slots in order to enhance current paths. Simultaneously, aforesaid methods can change current at both sides of slot from reverse to the same direction so as to achieve antenna radiation gain.Dual-Band Microstrip Patch Antenna with a Double Cross-Slot

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Lin, Pei Ying, and 林佩穎. "The Influences of Feeding Via Upon the Bandwidth of Planar Slot Antenna Excited by Microstrip." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/18740370482614134810.

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碩士<br>淡江大學<br>電機工程學系<br>92<br>In this thesis, the characteristics of the folded slot antennas and the influences of the feeding via upon the slot antenna bandwidth are investigated in details. The antennas studied are polarized and excited by a 50Ω microstrip line, and are linearly polarized. There are two kind of folded slot antennas discussed, in the thesis: one is single folded slot antenna and the other is double folded slot antenna. As compared to a simple slot antenna, it is found that the bandwidth of a single folded slot antenna is slightly wider. In addition, double folded

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Holland, Steven S. "Miniaturization of Microstrip Patch Antennas for Gps Applications." 2008. https://scholarworks.umass.edu/theses/120.

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The desire to incorporate multiple frequency bands of operation into personal communication devices has led to much research on reducing the size of antennas while maintaining adequate performance. GPS is one such application, where dual frequency operation, bandwidth and circular polarization pose major challenges when using traditional miniaturization techniques. Various loading methods have been studied to reduce the resonant frequency of the antenna – high permittivity dielectric loading, slot loading and cavity loading – while examining their effects on bandwidth and gain. The objective o

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Alibakhshikenari, M., B. S. Virdee, C. H. See, Raed A. Abd-Alhameed, F. Falcone, and E. Limiti. "Super-Wide Impedance Bandwidth Planar Antenna for Microwave and Millimeter-Wave Applications." 2019. http://hdl.handle.net/10454/17098.

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Yes<br>A feasibility study of a novel configuration for a super-wide impedance planar antenna is presented based on a 2 × 2 microstrip patch antenna (MPA) using CST Microwave Studio. The antenna comprises a symmetrical arrangement of four-square patches that are interconnected to each other with cross-shaped high impedance microstrip lines. The antenna array is excited through a single feedline connected to one of the patches. The proposed antenna array configuration overcomes the main drawback of conventional MPA with a narrow bandwidth that is typically <5%. The antenna exhibits a supe

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HUANG, ZHANG-XIU, and 黃章修. "Slot-coupled double-layered microstrip antennas." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/64257671893454577094.

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廖彥傑. "Reconfigurable Microstrip-fed Slot Antennas Design." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/49416155347563641699.

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碩士<br>逢甲大學<br>電機工程學系<br>101<br>This thesis focuses on reconfigurable slot antenna research, and two types of reconfigurable slot antennas are proposed. To achieve frequency or polarization diversity for the proposed slot antenna, pin-diodes were used for switching purposes. A reconfigurable slot antenna with switchable polarization is initially proposed in this thesis. The proposed antenna is comprised of a square-shaped radiating element loaded with an eccentric circular slot. It is fed by a microstrip feed line, and can excite TM11 mode. In order to generate circularly polarization (CP) radi

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TSAI, RUENN-BO, and 蔡潤波. "ANALYSIS OF CYLINDRICAL PRINTED SLOT AND SLOT-COUPLED MICROSTRIP ANTENNAS." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/81909879675081363094.

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博士<br>國立中山大學<br>電機工程研究所<br>83<br>Rigorous analysis of printed slot and slot-coupled microstrip antennas on a cylindrical surface is presented. The study is per- formed by using the full-wave analysis incorporating with the exact Green''s-function formulation in the spectral domain, and Galerkin''s moment-method is applied to calculate the numerical results. The curvature effects on the characteristics of both cylindrical prinred slot and slot-coupled microstrip antennas are major subjects o

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Nguyen, Hung Tien. "Miniaturizing microstrip patch antennas by slot loading." 2006. http://hdl.handle.net/1993/20837.

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Chen, Ming-Huang, and 陳明煌. "Studies of Broadband Slot-Coupled Microstrip Antennas." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/61453783316031299094.

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Yi-Chin, Huang, and 黃宜勤. "MICROSTRIP-FED SLOT ANTENNAS ON UNIAXIAL SUBSTRATES." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/27475967693774514347.

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碩士<br>大同工學院<br>電機工程研究所<br>86<br>This thesis is a research of theoretical investigation and numerical results for a microstrip-fed slot antenna on an uniaxial anisotropic substrate by using the full-wave analysis. The uniaxial Green's function in the spectral form is first derived. Once the Green's function is obtained, the integral equations are solved by the moment method procedure. In this method, the piecewise sinusoidal (PWS) functions are selected as the basis functions and the Gaussian-Legendre integral rule is applied to reduce the CPU time. Finally, numerical results show the effec

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Sze, Jia-Yi, and 施家頤. "BANDWIDTH-ENHANCEMENT DESIGNS OF SLOT-LOADED RECTANGULAR MICROSTRIP ANTENNAS." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/39979534891750933034.

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博士<br>國立中山大學<br>電機工程學系研究所<br>89<br>The bandwidth-enhancement characteristics of slot-loaded rectangular microstrip antennas constructed on a thin microwave substrate have been investigated in this dissertation. The primary design process about this topic is demonstrated. Firstly, a new antenna design idea is provided from pre-determined antenna design specifications or obtained antenna performances from the previous antenna design, which lead to a novel antenna configuration. From the results of the simulation software IE3DTM, the characteristics of this new antenna configuration are obtained

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張明軒. "Study of Microstrip-fed Ring Slot Antennas with Harmonic Suppression." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/83282950870305764792.

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碩士<br>逢甲大學<br>電機工程所<br>101<br>Recently, it is a pre-requisite requirement for hand-held communication products to possess the advantages such as light in weight, compact size and low manufacturing cost. To satisfy these requirements, a single structure design that comprised of an antenna integrated with the front-end circuit of the communication system is presently attracting many attentions. However, higher-order resonant modes excited by the antenna can cause EMI problems on the active circuit, which lead to degrading the performances of the system. Hence, the common solution to solve this p

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HUANG, SHENG-YANG, and 黃勝暘. "Microstrip-Fed Circular Ring Slot Antennas with Wideband Harmonic Suppression." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/q7wcns.

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碩士<br>逢甲大學<br>電機工程學系<br>106<br>Recently, it is a prerequisite requirement for hand-held communication products to possess the advantages such as light in weight, compact size and low manufacturing cost. To satisfy these requirements, a single structure design that comprised of an antenna integrated with the front-end circuit of the communication system is presently attracting many attentions. However, high order harmonic modes excited by the antenna can cause electromagnetic interference (EMI) problems on the active circuit, which lead to degrading the performances of the system. Hence, the co

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Chen, Richard H., and 陳彥池. "Miniaturized Design of Microstrip-Fed Slot Antennas for MIMO System Applications." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/45343314349670570238.

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碩士<br>臺灣大學<br>電信工程學研究所<br>98<br>In this thesis, a miniaturized design of microstrip-fed slot antennas is presented. By adding C-shaped rings inside the slot, the antenna size is reduced and dual-band characteristic may also be obtained. The C-shaped rings are used as inductive loadings to enhance the slow-wave effects leading to the effective propagation wavelength and the required antenna resonant lengths can be shorten. The mechanism, location in the slot, and dimensions of C-shaped rings are extensively studied and the optimization is made to effectively reduce the antenna size. Besides ant

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