Log in

Relevant bibliographies by topics / Slotted waveguide / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Slotted waveguide.

Dissertations / Theses on the topic 'Slotted waveguide'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 35 dissertations / theses for your research on the topic 'Slotted waveguide.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Dogan, Doganay. "Dual Polarized Slotted Waveguide Array Antenna." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613016/index.pdf.

Full text

Abstract:

An X band dual polarized slotted waveguide antenna array is designed with very high polarization purity for both horizontal and vertical polarizations. Horizontally polarized radiators are designed using a novel non-inclined edge wall slots whereas the vertically polarized slots are implemented using broad wall slots opened on baffled single ridge rectangular waveguides. Electromagnetic model based on an infinite array unit cell approach is introduced to characterize the slots used in the array. 20 by 10 element planar array of these slots is manufactured and radiation fields are measured. The

APA, Harvard, Vancouver, ISO, and other styles

2

Alhuwaimel, Saad. "Fully polarimetric slotted waveguide antenna array." Thesis, University College London (University of London), 2018. http://discovery.ucl.ac.uk/10041045/.

Full text

Abstract:

Multistatic radar system provides a great number of advantages over monostatic radar systems via exploitation of geometrical diversity which gives the ability to view targets from multiple perspectives. These advantages include target signature enhancement, improved detection, higher immunity against countermeasures and provide more information about targets and hence enhance targets classification. Furthermore, the passive receive-only nodes are more compact, hence lighter weight, and can be mounted on UAV which leads to a great advantage to surveillance systems and military applications. Ove

APA, Harvard, Vancouver, ISO, and other styles

3

Römer, Christian. "Slotted waveguide structures in phased array antennas /." Karlsruhe : IHE, 2008. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=016491138&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Muller, Martinette. "Neural network models of slotted waveguide directional couplers." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52354.

Full text

Abstract:

Thesis (MScEng)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: The application of artificial neural networks to microwave circuits is investigated. A neural network model is developed for two parallel waveguides coupled by a longitudinal slot in the common broad wall. Training data is generated through a moment method solution of the integral equations that describe the structure. A systematic investigation of training options is carried out and the development of the model is described in detail. The model is evaluated and compared with an Adaptive Sampling Interpolation (ASI)

APA, Harvard, Vancouver, ISO, and other styles

5

Top, Can Baris. "Design Of A Slotted Waveguide Array Antenna And Its Feed System." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/3/12607642/index.pdf.

Full text

Abstract:

Slotted waveguide array (SWGA) antennas find application in systems which require planarity, low profile, high power handling capabilities such as radars. In this thesis, a planar, low sidelobe, phased array antenna, capable of electronically beam scanning in E-plane is designed, manufactured and measured. In the design, slot characterization is done with HFSS and by measurements, and mutual coupling between slots are calculated analytically. A MATLAB code is developed for the synthesis of the SWGA antenna. Grating lobe problem in the scanning array, which is caused by the slot positions, is s

APA, Harvard, Vancouver, ISO, and other styles

6

St-Denis, Eric. "Performance optimization of a multi-slotted waveguide for microwave processing applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0002/MQ44288.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Wang, Hanyang. "Moment method analysis of slotted waveguide antennas incorporating finite element method." Thesis, Heriot-Watt University, 1994. http://hdl.handle.net/10399/1350.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Maritz, Andries Johannes Nicolaas. "Investigation and design of a slotted waveguide antenna with low 3D sidelobes." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/4161.

Full text

Abstract:

Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: An investigation into the cause of undesired sidelobes in the 3D radiation pattern of slotted waveguide arrays is conducted. It is hypothesized that the cross-polarization of the antenna is at fault, along with the possibility that an error is made when designing a linear array. In investigating and finding a solution to the problem, the “Z-slot ” is introduced in conjunction with polarizer plates. The base components are used by a custom optimization algorithm to design refere

APA, Harvard, Vancouver, ISO, and other styles

9

Zhao, Kunchen. "3D Printed Frequency Scanning Slotted Waveguide Array with Wide Band Power Divider." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555589955819802.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

McCormick, A. H. I. "Application of the moment method to the design of slotted waveguide array antennas." Thesis, Heriot-Watt University, 1988. http://hdl.handle.net/10399/1962.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Younies, Hassan Zeidan. "Design and electromagnetic characterization of microwave slotted rectangular waveguide applicators using the finite difference time domain method." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0023/MQ38422.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Stančulović, Sebastijan. "Theoretical synthesis and experimental measurements of slotted waveguide feeding systems for 2.45 GHz industrial microwave heating installations." Karlsruhe : Forschungszentrum Karlsruhe, 2006. http://d-nb.info/983614016/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Stančulović, Sebastijan [Verfasser]. "Theoretical synthesis and experimental measurements of slotted waveguide feeding systems for 2.45 GHz industrial microwave heating installations / Sebastijan Stančulović." Karlsruhe : Forschungszentrum Karlsruhe, 2006. http://d-nb.info/983614016/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Ozturk, Mensur. "Analysis Of Circular Waveguides Coupled By Axially Uniform Slots." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607730/index.pdf.

Full text

Abstract:

The characteristics of slotted circular waveguides with different dimensions, including cutoff frequencies of TE and TM modes, impedance and modal field distributions will be analyzed using the generalized spectral domain approach. The Method of Moment will be applied, basis functions that include the edge conditions will be used and a computer program will be developed. Obtained results will be presented for different number, depth and thickness of coupling slots, and compared with available data to demonstrate the accuracy and the efficiency of the approach. Plots of the electric and magneti

APA, Harvard, Vancouver, ISO, and other styles

15

Gaja, Tomáš. "Návrh anténní řady pro MSPS radar pracující v pásmu L." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-316426.

Full text

Abstract:

This thesis deals with the design of an antenna array for the MSPS Radar L band application. The introduction covers a research for a suitable antenna element which can be used as an element of steerable antenna array. The control of the main beam is enabled in the vertical plane. Based on a presented theory, a slotted waveguide antenna array with an omnidirectional radiation in the vertical plane is designed. The operating frequency is set to 1 367.5 MHz. Slotted array achieves 20° width of the main beam in elevation plane. The achieved gain of the array is 9.15 dBi. Further attention of this

APA, Harvard, Vancouver, ISO, and other styles

16

Ouedraogo, Samir. "Antenne Multifonction pour Radar et Communication." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC010/document.

Full text

Abstract:

Afin de répondre à la demande croissante de nouveaux services, les objets que nous utilisons au quotidien (les smartphones, les voitures, les avions, etc.) tendent à intégrer de plus en plus de systèmes radio tandis que l’espace disponible pour l’intégration de ces éléments est de plus en plus réduit. Ces systèmes radio nécessitent l’utilisation de plusieurs antennes devant répondre à des critères de compacité, d’isolation, de coût, etc. À titre d’illustration, un smartphone contient plusieurs antennes pour assurer des fonctions telles que la téléphonie, la navigation, la connexion à internet

APA, Harvard, Vancouver, ISO, and other styles

17

Scullion, Mark Gerard. "Slotted photonic crystal biosensors." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/3405.

Full text

Abstract:

Optical biosensors are increasingly being considered for lab-on-a-chip applications due to their benefits such as small size, biocompatibility, passive behaviour and lack of the need for fluorescent labels. The light guiding mechanisms used by many of them result in poor overlap of the optical field with the target molecules, reducing the maximum sensitivity achievable. This thesis presents a new platform for optical biosensors, namely slotted photonic crystals, which engender higher sensitivities due to their ability to confine, spatially and temporally, the peak of optical mode within the an

APA, Harvard, Vancouver, ISO, and other styles

18

Nikkhah, Hamdam. "Enhancing the Performance of Si Photonics: Structure-Property Relations and Engineered Dispersion Relations." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37144.

Full text

Abstract:

The widespread adoption of photonic circuits requires the economics of volume manufacturing offered by integration technology. A Complementary Metal-Oxide Semiconductor compatible silicon material platform is particularly attractive because it leverages the huge investment that has been made in silicon electronics and its high index contrast enables tight confinement of light which decreases component footprint and energy consumption. Nevertheless, there remain challenges to the development of photonic integrated circuits. Although the density of integration is advancing steady and the integra

APA, Harvard, Vancouver, ISO, and other styles

19

Tekkouk, Karim. "Développement d'antennes multi-faisceaux multicouches de la bande Ku à la bande V." Thesis, Rennes 1, 2014. http://www.theses.fr/2014REN1S165.

Full text

Abstract:

Les travaux de cette thèse portent sur la conception d'antennes multi-faisceaux. Ces dernières permettent à plusieurs faisceaux de partager la même partie rayonnante et offrent la possibilité d'avoir simultanément un fort gain et une grande couverture angulaire. Pour leur fonctionnement, ces antennes se basent sur des réseaux à formation de faisceaux, qui peuvent être groupés en deux catégories : les réseaux formateurs de faisceaux de type quasi-optique et les réseaux formateurs de faisceaux de type circuit. Plusieurs structures antennaires reposant sur ces types de réseaux à formation de fais

APA, Harvard, Vancouver, ISO, and other styles

20

Cherng, Yi-Xiang, and 程奕翔. "Slotted Conductor-Backed Coplanar Waveguide Antennas." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/59039148411389671771.

Full text

Abstract:

碩士<br>國立交通大學<br>電信工程系所<br>96<br>Conductor-backed coplanar waveguide (CBCPW) exists two dominant modes including CPW and parallel plate modes (surface wave) with no cutoff frequency. The latter causes the power leakage into transverse direction, resulting in unexpected or even harmful coupling and crosstalk to the neighboring transmission lines or devices. By some methods, we can suppress the surface leaky wave, and the structure would become a good transmission line. It will be exhibited briefly in the article. Implementing the full wave analysis (Spectral Domain Analysis) on the CBCPW structu

APA, Harvard, Vancouver, ISO, and other styles

21

Ching-Kai, Lin. "Theory of Slotted Waveguide and Its Excitation." 2006. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0016-1303200709293189.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Lin, Ching-Kai, and 林靖凱. "Theory of Slotted Waveguide and Its Excitation." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/98072350467071538689.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Bronte, MacIntosh-Hobson. "Slotted substrate integrated waveguide array antenna & feed system." Thesis, 2008. http://spectrum.library.concordia.ca/976150/1/MR45491.pdf.

Full text

Abstract:

In this thesis we investigate substrate integrated waveguides and their application as a slotted waveguide antenna array. The standard slotted waveguide antenna is designed following Elliot's modified design procedure. Elliot's modified design procedure not only takes into account the effects of mutual coupling from the neighboring slots in the array but also the internal higher order modes that are scattered off adjacent slots. The antenna is then converted to a slotted substrate integrated waveguide antenna by carefully placing two rows of metallic via holes to simulate the sidewalls of the

APA, Harvard, Vancouver, ISO, and other styles

24

Yeh, Jing-pei, and 葉璟霈. "Coplanar Waveguide fed Circular Polarization Slotted Annular Ring Monopole Antenna." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/96121392848674553596.

Full text

Abstract:

碩士<br>國立中央大學<br>電機工程研究所<br>98<br>The design and analysis of a planar, circularly polarized, and slotted annular ring monopole antenna are presented. In contrast to traditional planar circularly polarized patch antenna and slot antennas poised for narrowband applications, the presented antenna is of relatively broad operating bandwidth by exploiting the broadband monopole antenna structure. Specifically, the proposed antenna consists of a coplanar-waveguide (CPW) fed annular ring monopole with a gap near the CPW feed. The circular polarization is essentially realized with the circular current f

APA, Harvard, Vancouver, ISO, and other styles

25

Zeng, Guan-Ling, and 曾冠菱. "Dual-Polarized Slotted Conductor-Backed Coplanar Waveguide Leaky-Wave Antenna." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/85695786639881797377.

Full text

Abstract:

碩士<br>國立交通大學<br>電信工程研究所<br>104<br>Conductor-backed coplanar waveguide (CBCPW) propagates electromagnetic waves via dominant modes (coplanar waveguide mode), and excites leaky wave which propagates toward both sides despite the value of the frequency. In general, there are two applications based on this structure: first is to use such property to design the antenna; the other is to suppress the leaky wave through some methods in order to decrease the unnecessary couplings and crosstalk. Implementing the full wave analysis (Spectral Domain Approach) on the CBCPW structure, we can discover that t

APA, Harvard, Vancouver, ISO, and other styles

26

Chen, Han-Feng, and 陳漢峰. "Design and Analysis of Slotted Waveguide Antenna Integrate on Microwave Laminate." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/d8zbnu.

Full text

Abstract:

碩士<br>北臺灣科學技術學院<br>機電整合研究所<br>99<br>Three different kinds of novel designs of slotted waveguide printed antennas have been investigated and analyzed in this dissertation. The proposed slotted waveguide antenna has a number of advantages over the traditional ones, such as reduced size, low costs, and easily to be integrated with planar circuits. The structure of antenna consists of a 50Ω microstrip-line feed and a rectangular slotted waveguide as radiate element. Three different kinds of slot arrangements were designed and simulated on the plant slotted waveguides by Ansoft HFSS 11 software. Fr

APA, Harvard, Vancouver, ISO, and other styles

27

Chen, Hsin-Liang, and 陳信良. "Conductor-Backed Coplanar Waveguide Slotted Antenna Array with Improved Aperture Efficiency." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/70643890605028506124.

Full text

Abstract:

碩士<br>國立交通大學<br>電信工程系所<br>97<br>Conductor-backed coplanar waveguide (CBCPW) propagates electromagnetic waves via dominant modes (coplanar waveguide mode), and excites leaky wave which propagates toward both sides despite the value of the frequency. In general, there are two applications based on this structure: first is to use such property to design the antenna; the other is to suppress the leaky wave through some methods in order to decrease the unnecessary couplings and crosstalk. Implementing the full wave analysis on the CBCPW structure, we can discover that the leaky wave propagates

APA, Harvard, Vancouver, ISO, and other styles

28

Chien, Hsiao-Ching, and 錢曉晴. "Circular Polarized Slotted Antenna Array Based on Double-Layer Substrate Integrated Waveguide." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/10370523284292600048.

Full text

Abstract:

碩士<br>國立交通大學<br>電信工程研究所<br>99<br>The thesis based on the concept of the waveguide coupling employs resonant slots to couple power from the main waveguide to crossed branch waveguides. An antenna array which is composed of the circularly polarized (CP) four-slots radiated elements can result in a high gain at the broadside direction. The side lobe level (SLL) can be greatly reduced by appropriate design. In the substrate integrated waveguide (SIW), the guided wavelength is less than the wavelength in air. When the array spacing is around a guided wavelength, the grating lobe can be avoided.

APA, Harvard, Vancouver, ISO, and other styles

29

Shih, Huang-Cheng, and 石皇城. "The Investigations of Mode Splitting in Slotted Circular Waveguide with Finite Metal Thickness." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/98352281895110396633.

Full text

Abstract:

碩士<br>國立交通大學<br>電信研究所<br>82<br>In this thesis, a rigorous full-wave mode-matching method is used to analyze the propagation characteristics of a conductor bounded slotted circular waveguide which has finite thickness. A most general eigenfunction expansion formulation is proposed and the concept of mode splitting is presented for the first time. Extensive convergence studies for the mode-matching method are presented and the dispersion relation for a limiting case is presented and compared

APA, Harvard, Vancouver, ISO, and other styles

30

Lin, Yow-Shyan, and 林侑賢. "Circularly Polarized Slotted Conductor-Backed Coplanar Waveguide Antenna Arrays with Sequential Rotation Feeding Method." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/01369908970549073503.

Full text

Abstract:

碩士<br>國立交通大學<br>電信工程系所<br>97<br>Conductor-backed coplanar waveguide (CBCPW) exists two dominant modes including CPW and parallel plate modes with no cutoff frequency. The latter one causes the power leakage into transverse direction. We use the characteristic to design it as a good transmission line. Implementing the full wave analysis (Spectral Domain Approach) on the CBCPW structure, we can acquire the information that the surface wave propagates along a particular angle relative to the main CPW line. So, we etch rectangular slots along the angle on the two side ground planes. Because the sl

APA, Harvard, Vancouver, ISO, and other styles

31

Chang, Ting-Wei, and 張庭瑋. "A Dual Band Beam Tilted Slotted Substrate-Integrated-Waveguide Antenna for the Radiometer Application." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/26805050725576169439.

Full text

Abstract:

碩士<br>國立交通大學<br>電信工程研究所<br>99<br>In this thesis, we introduce a dual band beam tilted slotted substrate–integrated -waveguide antenna. The antenna in the thesis is a two- layer structure; the bottom layer is the conventional slotted waveguide, and the waveguide structure is realized by substrate integrated waveguide(SIW); the top layer is a metal patch array which is just above the slot array on the waveguide surface. The two layers both use the Duroid5880 10mil substrate. Conventional slotted waveguide use the fast wave region in the fundamental mode to radiate. By the effect of the top laye

APA, Harvard, Vancouver, ISO, and other styles

32

Dai, Kai-Ming, and 戴凱明. "A Dual Band Slotted Substrate-Integrated-Waveguide Antenna with Tilted Beam for The Radiometer Application." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/70667446868236257747.

Full text

Abstract:

碩士<br>國立交通大學<br>電信工程研究所<br>101<br>In this thesis, we introduce a dual band tilted beam slotted substrate–integrated -waveguide antenna. The antenna in the thesis is a two- layer structure; the bottom layer is the conventional slotted waveguide, and the waveguide structure is realized by substrate integrated waveguide(SIW); the top layer is a metal patch array which is just above the slot array on the waveguide surface with two-layers Duroid5880 substrate. Conventional slotted waveguide use the fast wave region in the fundamental mode to radiate. By the effect of the top layer patches, we can e

APA, Harvard, Vancouver, ISO, and other styles

33

Perovic, Una. "Investigation of rectangular, uni-directional, horizontally polarised waveguide antennas with longitudinal slotted arrays operating at 2.45 GHz." Thesis, 2006. http://hdl.handle.net/10539/1673.

Full text

Abstract:

Student Number : 0002066T - MSc dissertation - School of Electrical and Information Engineering - Faculty of Engineering and the Built Environment<br>Investigations of uni-directional, horizontally polarized waveguide antennas with longitudinal slotted arrays operating at 2.45GHz and their applications to wireless local area networks (WLAN) are presented in this paper. Requirements, considerations, and limitations associated with the design process of this particular waveguide are discussed and presented. Various antenna parameters were simulated using MATLAB® and SuperNEC® software sim

APA, Harvard, Vancouver, ISO, and other styles

34

Chin, Chien-Hou, and 秦健候. "Aperture Efficiency and Cross-Polarization Improvement of Sequentially-Fed Circularly Polarized Slotted Conductor-Backed Coplanar Waveguide Antenna Arrays." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/58493656676482103603.

Full text

Abstract:

碩士<br>國立交通大學<br>電信工程研究所<br>99<br>The slotted conductor-backed coplanar waveguide antenna features high gain, and belongs to linearly polarized antenna. According to the sequential rotation feeding method, a circularly polarized array can be composed of linearly polarized elements. Therefore, the slotted conductor-backed coplanar waveguide antenna is applicable to this theory, and can compose a circularly polarized array. In this thesis, we use the technique to produce circular polarization, and improve the performance with more linearly polarized elements. The antenna for direct broadcast from

APA, Harvard, Vancouver, ISO, and other styles

35

Lin, Chang-Fu, and 林章甫. "Energy conversion efficiency of an energetic large orbit rotating electron beam with the harmonic modes of a periodically slotted cylindrical waveguide." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/08311217874039336790.

Full text

Abstract:

碩士<br>國立海洋大學<br>電機工程學系<br>87<br>The high power high frequency microwave has emerged over the years as a new technology. The high power high frequency source has a wide range of application, such as cyclotron resonance heating plasma for fusion reactor, particle acceleration for basic research, and high power radar etc. It is generally known that high frequency gyrotron requires high magnetic fields when they are operated at the fundamental mode. However, when they are operated at high harmonic, the magnetic field can then be reduced in inverse proportion to the number of the harmoni

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!