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Dissertations / Theses on the topic 'Horn antenna design'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Cheng, Po-Kai. "NeXtRAD antenna design: X-Band dual polarised conical horn antenna." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20511.

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The purpose of the dissertation is to investigate a design and implementation of a dual polarised X-band antenna. The desired specifications include a centre frequency of 8.5 GHzand a 10_ azimuth-half power beam width in both vertical and horizontal polarisations. Other requirements include peak power handling of 400 W over a 50 MHz instantaneous bandwidth and the facility to be mounted on a standard tripod. The dissertation begins by introducing NeXtRAD, a radar project developed jointly by UCL and UCT, outlines the objective of the study and lists all the requirements to be achieved. After c

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2

Ata, Osama Wadie. "Application of ray theory into microwave horn antenna design." Thesis, Cardiff University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327873.

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3

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.

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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

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4

Beukman, Theunis Steyn. "Modal-based design techniques for circular quadruple-ridged flared horn antennas." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96948.

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Thesis (PhD)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: This dissertation presents modal-based techniques for the effective systematic design of quadruple-ridged flared horns (QRFHs) as reflector feeds for radio astronomy applications. A new excitation technique is proposed, consisting of a quadraxial line that terminates in the quad-ridges through the back lid of the QRFH, which allows for the integration with differential low-noise amplifiers. An equivalent circuit of this quadraxial feed is presented that allows fast synthesis of optimal feeding designs for QRFHs. In addition

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5

Van, der Walt Madele. "A design environment for the automated optimisation of low cross-polarisation horn antennas." Thesis, Stellenbosch : University of Stellenbosch, 2010. http://hdl.handle.net/10019.1/5144.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2010.<br>ENGLISH ABSTRACT: The aggressive space mapping algorithm is used in this project for the optimisation of electromagnetic structures. This technique combines the use of fast, less accurate models with more time-consuming, high precision models in the optimisation of a design. MATLAB’s technical computing environment possesses powerful tools for optimisation as well as the graphical representation and mathematical post-processing of data. A software interface, which uses Visual Basic for Applicatio

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6

Gao, Ming. "Design and feasibility evaluation of low-cost 3D printing of Horn Antennas." Master's thesis, Faculty of Engineering and the Built Environment, 2019. http://hdl.handle.net/11427/31196.

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This dissertation investigates advances in additive manufacturing (AM) technology to determine the feasibility of low-cost 3D printing of horn antennas. Relevant antenna theory and current 3D printing technologies are reviewed and a literature review is conducted looking specifically at microwave and RF devices that have been fabricated using 3D printing technologies. The literature indicates that the fabrication of antennas using AM and metallisation techniques is realisable. One of the objectives of this study has been to design, fabricate and test the performance of lowcost 3D printed anten

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7

Hawkins, Dennis Charles. "A study of design techniques for optimising the performance of pyramidal waveguide horns." Thesis, Manchester Metropolitan University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386666.

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8

Vale, Christopher A. W. "Growth-based computer aided design strategies for multimode waveguide design with the aid of functional blocks." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52291.

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Thesis (PhD) -- Stellenbosch University, 2001.<br>Some digitised pages may appear illegible due to the condition of the original hard copy.<br>ENGLISH ABSTRACT: A new technique for the design of multimode devices in overmoded waveguide is presented. The technique applies the principle of growth-based design and uses a conceptual functional block representation of the design structure to provide necessary flexibility to the design algorithms. Two growth based design strategies are proposed and evaluated. The first uses a generalized synthesis-oriented scanning technique, and the second use

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9

Li, Ming-Shou, and 李明守. "Compact Horn Antenna Design." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/67162999228241298967.

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碩士<br>樹德科技大學<br>電腦與通訊系碩士班<br>101<br>In this thesis,a compact horn antenna design is proposed, and the volume of the new compact horn antenna design can be reduced significantly.By using high -permittivitysubstrate or to excite low-frequency resonance-mode, the reduced-size horn antenna can be achieved in the same operating frequency and the difficulty of the fabrication and useforthehorn antennacan be improved. In this thesis,two kinds of compact horn antenna design isdescribed; the first one is compact horn antenna designwith filling silicone substrate. It is filled silicone rubber inside the

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10

Gan, Po-Ping, and 甘博平. "The Design of Horn Antenna." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/72885004856552276905.

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碩士<br>樹德科技大學<br>電腦與通訊研究所<br>95<br>The purpose of this thesis is to design and study horn antenna. The horn antenna is characterized by high gain, directional, and wide band, therefore, it can be used as a standard antenna of the antenna pattern measurement system. The pyramid horn antenna we choose includes the merits of E-plane horn antenna and H-plane horn antenna. Its bandwidth, wavelength and divergence directional are varied by changing its flare width, flare degree and width. This research is based on the made materials of horn antenna, and enables us to understand the differences be

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11

Zhan, Shun-Xiang, and 詹順翔. "Analysis and Design of Quad–Ridged Horn Antenna." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/59589748432791858557.

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碩士<br>大葉大學<br>電信工程學系碩士班<br>93<br>High-frequency EMC amount mostly use horn antenna, a shape of radiation and impedance characteristic that the horn antenna of different forms can use an d control it and gain while measuring. The common horn antenna has Pyramid type, fan-shaped, taper shape, funnel type, etc. And quad–ridged horn antenna at mode, can operate any kind of polarization again, so in the design, E-plane and H-plane each have one feed, it does not need to rotate for quad–ridged horn antenna when measuring, can reduce time effectively. This thesis is discussing mainly how to design

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12

Yen, Huai-yung, and 顏懷勇. "An E-plane horn reconfigurable antenna system design." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/73140185289416617666.

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碩士<br>國立交通大學<br>電信工程系所<br>97<br>In this thesis, we reported a reconfigure antenna that is able to radiate different topologies of radiation pattern. Such an antenna system is composed of a 4-way power divider made from a cavity-type structure fabricated using printed circuit technology. Due to the symmetric electric field distribution in the resonant cavity, the power divider maintains equal amplitude- and phase- distribution in the frequency range from 2.3 GHz to 2.5 GHz. Moreover, the high isolation among the ports was obtained. The output ports of the 4-way power splitter are respectively

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13

Liao, Liang-Ci, and 廖良啟. "Radiation-Pattern-Reconfigurable Design on Quasi-Horn Antenna a Study." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/97975738493705340577.

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碩士<br>龍華科技大學<br>電子工程系碩士班<br>104<br>A novel quasi-horn antenna is presented that application to the LTE band. The antenna structure is the main radiator of monopole antenna. Through coupling the top of different directors or resonator to achieve the effect of different characteristics of the antenna. The coupled resonators of the monopole antenna design for long-term evolution (LTE) applications are proposed. This antenna is designed on double levels printed circuit board (PCB) FR4 substrate with permittivity εr=4.4, loss tangent tanδ=0.0245, and thickness h1=1.6 mm on the lower level PCB and t

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14

Kumar, Badita Ajay. "Design and Analysis of TEM Horn Antenna for GPR Applications." Thesis, 2015. http://ethesis.nitrkl.ac.in/7562/1/2015_Design_Kumar_(2).pdf.

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Ground penetrating radar (GPR) is a technique used to probe the ground This technique is positioned top among all existing geophysical techniques Applications of GPR are enormous and are ranging from planetary exploration to the detection of buried mines. In GPR to get high resolution and to get the wave traveled through deeper distance inside the earth, the transmitting antenna (Tx) must transmit the narrow width pulse signal into the ground where objects are hidden. This thesis presents the work on the design of TEM horn antenna. For this application A Compact Double-Ridged Horn Antenna from

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15

Iqbal, Farzeen. "Design of substrate integrated waveguide H-plane horn antenna with symmetric beamwidths." Thesis, 2017. https://dspace.library.uvic.ca//handle/1828/8429.

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Millimeter-wave Substrate Integrated Waveguide (SIW) technology presents itself as the most viable solution for the development of RF systems. It is a cost-e ective solution, suitable for mass production of such systems. Like planar circuits, SIW structures are compact, light weight and easy to fabricate. They also preserve some of the major advantages of metallic waveguides, namely, low loss, high quality factor and high power handling capabilities. In RF systems, rectangular waveguide horns have found various applications due to their exceptional radiation properties. From their simpl

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16

Jhuo, Chang-Yan, and 卓長彥. "Broadband Dual-band Orthomode Transduer and E - Plane Corrugated Horn Antenna Design." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/73002447293922618182.

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碩士<br>國立彰化師範大學<br>電信工程研究所<br>102<br>In this thesis, we have proposed a miniature broadband orthomode transducer (OMT) used in K and Ka band. In order to prevent interference between between receiver port and transmitter port,we use the septum structure toattain enough isolation (not less than 30 dB). This structure includes a tapered impedance transformer, and septums with different shapes are placed in the receiver port and transition region. Such arrangement can effectively decrease cross-polarization between two orthogonal polarizations, but increases the manufacture complexity and cost. Th

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17

Liu, Hung-Wan, and 劉鴻萬. "A four-beam E-plane horn antenna design incorporating a wire-based metamaterial." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/93070074327474985814.

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碩士<br>國立交通大學<br>電信工程系所<br>97<br>In this thesis, we reported a four-beam E-plane horn antenna incorporating a wire-based metamaterial. Such a metamaterial is made up of metallic cylinders organized in a two-dimensional square lattice. After properly designing the lattice constant and unit cell pattern, we synthesized a medium having the effective refractive index smaller than unity. Therefore, once waves within the metamaterial were excited, the refractive wave tends to be perpendicular to that of the interface between metamaterial and uniform medium. Based on this concept, a 4-way power divide

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18

Lee, Wen-Wen, and 李雯雯. "Optimization of Septum Polarizer Design and Polarizer with Stubs to Improve the Circular-Polarized Radiation of the Horn Antenna." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/09827169636771985787.

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碩士<br>元智大學<br>通訊工程學系<br>96<br>A genetic software program is developed to provide seamless integration among commercial codes for analysis and simulation of electromagnetic problems. Combined with the genetic algorithm, the developed program is able to perform automatic tuning of the structures for optimized design of the polarizers in horn antennas. Numerical results show that proper stub insertions may provide additional freedoms to optimally design the polarizer with a better return loss and a flexible phase tuning, which is particularly useful to compensate the deficiency of a horn antenna

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