Relevant bibliographies by topics / Monopole antenna

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Monopole antenna'

Author: Grafiati
Published: 4 June 2021
Last updated: 18 February 2022

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Journal articles on the topic "Monopole antenna"

1

Wang, Quanxin, Zhongxiang Shen, and Erping Li. "Modal-Expansion Analysis of Multiple Monopole Antennas." International Journal of Antennas and Propagation 2007 (2007): 1–10. http://dx.doi.org/10.1155/2007/76930.

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The modal-expansion method is employed to analyze an array of multiple monopole antennas. A perfectly conducting plate is introduced at the top of the monopole array to facilitate the modal-expansion analysis. Expansion coefficients in the field expressions are found by enforcing continuity conditions of the tangential field components across the regional surfaces. Cylindrical function's addition theorem is employed to realize the transformation of field expressions in different coordinate systems. Numerical results for theS-parameters of a two-monopole antenna are presented and they are in good agreement with experimental ones. Also examined is the effect of the distance between two monopoles on the antenna's mutual coupling and radiation pattern. A four-monopole antenna is studied for its beam-steering capability and simulated results for its radiation properties are compared with those obtained by high frequency structure simulator (HFSS).
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Saeidi, Tale, Idris Ismail, Wong Peng Wen, Adam R. H. Alhawari, and Ahmad Mohammadi. "Ultra-Wideband Antennas for Wireless Communication Applications." International Journal of Antennas and Propagation 2019 (April 22, 2019): 1–25. http://dx.doi.org/10.1155/2019/7918765.

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A review paper concerning wide-band and ultra-wideband (UWB) antennas used for wireless communication purposes in terms of the materials as well as a numerical analysis is presented. These antennas which are taken into account are listed as wide-band microstrip antenna, wide-band monopole antenna over a plate, wide-slot UWB antenna, stacked patch UWB antenna, taper slot (TSA) UWB antenna, metamaterial (MTM) structure UWB antennas, elliptical printed monopole UWB antenna, and flexible wearable UWB antenna. The antennas’ performance is compared based on their size and how they can be applicable for portable communication device applications. This review paper furnishes a proper direction to select varieties of figures in terms of impedance bandwidth, gain, directivity, dimensions, time domain characteristics, and materials affecting these antenna’s characteristics.
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Ray, K. P. "Design Aspects of Printed Monopole Antennas for Ultra-Wide Band Applications." International Journal of Antennas and Propagation 2008 (2008): 1–8. http://dx.doi.org/10.1155/2008/713858.

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This paper presents the design equations for lower band-edge frequency for all the regular shapes of printed monopole antennas with various feed positions. The length of the feed transmission line is a critical design parameter of these monopole antennas. Design curves for the length of the feed transmission line for various lower band-edge frequencies for all these regular shaped monopoles have been generated. A systematic study has been presented to explain the ultra-wide bandwidth obtained from these antennas with an example of elliptical monopole antenna.
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Ghorbani, Mehdi, and Habib Ghorbaninejad. "A Novel Ultrawideband Gear-Shaped Dielectric Ring Resonator Antenna." Mathematical Problems in Engineering 2021 (July 12, 2021): 1–8. http://dx.doi.org/10.1155/2021/8069873.

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In this study, a novel ultrawideband (UWB) dielectric ring resonator (DRR) antenna has been proposed. DRR antennas include a single monopole antenna in the center of a ground plane and a dielectric with a symmetric structure around the monopole. This structure will lead to ultrawide band antenna. However, it is still possible to enhance the antenna bandwidth. In this study, we combine the DRR structure with an array antenna. The proposed antenna includes a circular array of four triangle resonators, which is rotated around the center of the triangle base to form a gear-shaped ring resonator antenna. In this design, characteristics of all these antennas are combined to enhance the antenna bandwidth including triangular dielectric resonator, circular array antenna, dielectric ring resonator structure, and a quarter-wave electric monopole. Triangular dielectric resonator antennas are wideband and in small size. Ring resonator antennas are inherently ultrawideband. Quarter-wave electric monopole and circular array structure can also enhance antenna bandwidth. This novel shape of the DRR antenna possesses the wider impedance bandwidth compared to similar works. Impedance bandwidth is 150% (5.2–36.1 GHz), and the bandwidth ratio is 1 : 6.9, which is much greater than earlier reports.
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Chen, Xiaodong, Jianxin Liang, Pengcheng Li, and Choo C. Chiau. "UWB Electric and Magnetic Monopole Antennas." African Journal of Information & Communication Technology 2, no. 1 (February 28, 2006): 21. http://dx.doi.org/10.5130/ajict.v2i1.6.

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This paper summarizes our recent advances in antenna designs for ultra wideband (UWB) applications. Two types of monopoles are studied and developed in our research group. The first type belongs to the electric monopole with a circular disc fed by three different feeding structures. The second type is the magnetic monopole with an elliptical slot. The performances of these two types of antennas are evaluated in both frequency and time domains. The important design parameters for achieving optimal operations are also analyzed. It is shown that both electric and magnetic monopoles can provide ultra wide bandwidth with nearly omni-directional radiation patterns over the entire frequency band. In addition, the impulse responses of the selected antennas are shown to correspond well to the frequency domain characteristics.
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Nikolaou, Symeon, and Muhammad Ali Babar Abbasi. "Miniaturization of UWB Antennas on Organic Material." International Journal of Antennas and Propagation 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/5949254.

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Three planar, CPW-fed, UWB antennas with increasingly reduced size are presented and the miniaturization method is discussed. The first antenna is a CPW-fed elliptical slot with an uneven U-shaped tuning stub, the second antenna is a cactus shaped monopole, and the third one is a miniaturized version of the cactus shaped monopole antenna. All presented antennas have a simulated and measured return loss below −10 dB over the 3.1 to 10.6 GHz UWB frequency range and mostly omnidirectional radiation patterns. The proposed antennas are fabricated on liquid crystal polymer (LCP). The CPW-fed slot antenna requires an overall board dimension of 38 mm × 40 mm, and the evolved cactus monopole is confined in a 28 mm × 32 mm board, while the final miniaturized cactus monopole is printed on 28 mm × 20 mm board, resulting in a 41% and 63% size reduction, respectively. Using both simulations and measurements, the paper analyzes the response of all three antennas and discusses and demonstrates the effectiveness of the implemented miniaturization method.
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Elsheakh, Dalia M., and Amr M. E. Safwat. "Compact 3D USB dongle monopole antenna for mobile wireless communication bands." International Journal of Microwave and Wireless Technologies 6, no. 6 (March 25, 2014): 639–44. http://dx.doi.org/10.1017/s1759078714000245.

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Three-dimensional compact volume internal antenna for universal serial bus (USB) dongle that covers hexa operating bands is proposed in this paper. The volume of the proposed USB dongle is 15×20×4 mm3; it is based on two connected monopoles, one of them is semi-circular monopole ended by three unit cells of meander-line and the other is a bent monopole with four unit cells of high-impedance wire. The proposed antenna is realized on a printed circuit board to reduce the fabrication costs. The coupling between the antenna elements broadens the operating bandwidth, which includes most of the wireless commercial service bands, GSM850/GSM900/UMTS/GSM1800/GSM1900/WCDMA2100/802.11b/g/LTE2600 (824–2690 MHz) as well as 802.11a/n (5150–5825 MHz). The antenna's simulated and experimental results are in good agreement.
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Palantei, Elyas, Arif Hidayat, Wardi Wardi, Intan Sari Areni, Sunarno Sunarno, Eko Setijadi, Dewiani Jamaluddin, et al. "6 Monopole Elements Array Intelligent Antennas for IoT Based Environmental Surveillance Network." EPI International Journal of Engineering 3, no. 2 (January 22, 2021): 126–31. http://dx.doi.org/10.25042/epi-ije.082020.06.

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Three types of 6 monopoles array intelligent antennas was numerically and practically examined. The main purposes of the investigation is to guarantee that those designed antennas are feasible to implement and to install in a particular IoT based environmental surveillance network configuration. The basic differences of the three intelligent antennas lied on the frequency operations (i.e. 433 MHz, 875-915 MHz and 2.5 GHz) and the actual environment operations (whether for indoor or outdoor). The extreme differences of such frequency operations, of course, affecting the differences on the whole antenna physical dimension. The higher the frequency operation determined then the smaller the physical size of the designed antennas produced. However, the deep intelligent antenna evaluations presented in the paper is the one that operated on frequency band of 875 -915 MHz. The intelligent electronic part of six monopole wire elements arrayed on a circular ground plate was composed of LoRa chip module, Android Uno microcontroller, and the switching network part. The three parts determined whole antenna operation throughout the IoT network. The results of whole antenna examinations are thoroughly discussed in the paper.
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Kumari, Bibha, and Nisha Gupta. "Multifrequency Oscillator-Type Active Printed Antenna Using Chaotic Colpitts Oscillator." International Journal of Microwave Science and Technology 2014 (November 30, 2014): 1–10. http://dx.doi.org/10.1155/2014/675891.

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This paper presents a new concept to realize a multifrequency Oscillator-type active printed monopole antenna. The concept of period doubling route to chaos is exploited to generate the multiple frequencies. The chaotic Colpitts oscillator is integrated with the printed monopole antenna (PMA) on the same side of the substrate to realize an Oscillator-type active antenna where the PMA acts as a load and radiator to the chaotic oscillator. By changing the bias voltage of the oscillator, the antenna can be made to operate at single or multiple frequencies. To test the characteristics of the antenna at single and multiple frequencies of operation, two similar prototype models of printed monopole broadband antennas are developed. One of these antennas used at transmit side is fed by the chaotic Colpitts oscillator while the other is used as the receive antenna. It is observed that the antenna receives single or multiple frequencies simultaneously for particular values of the bias voltage of the oscillator at the transmit end.
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IBRAHIM, NUR. "Pendeteksian Lokasi Sumber Noise (Partial Discharge) secara Tiga Dimensi menggunakan Antenna Array." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 3, no. 2 (July 1, 2015): 106. http://dx.doi.org/10.26760/elkomika.v3i2.106.

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ABSTRAKPada penelitian ini akan dilakukan simulasi teknik pendeteksian lokasi sumber noise berupa partial discharge (PD) pada peralatan tegangan tinggi, dengan menggunakan susunan antena yang terdiri dari empat buah antena monopole sebagai sensor untuk mendeteksi gelombang elektromagnetik (EM) yang dipancarkan dari partial discharge (PD). Algoritma yang digunakan mengacu kepada time difference of arrival (TDOA) dari sinyal yang diterima antar antena (dengan menjadikan salah satu antena sebagai antena referensi). Metode yang digunakan untuk menentukan TDOA adalah metode Akaike Information Criterion, metode Energy Criterion, metode Gabor Centroid, metode threshold detection, metode peak detection, dan metode cross-correlation. Sistem pendeteksian lokasi sumber noise ini menggunakan konfigurasi susunan antena membentuk Y. Jarak antar antena diatur sejauh 2 meter dan 4 meter. Berdasarkan hasil pengamatan dan analisis, konfigurasi susunan antena membentuk Y memiliki tingkat akurasi 97.67%. Metode yang paling akurat untuk menentukan TDOA adalah metode cross-correlation.Kata kunci: PD, TDOA, susunan antena.ABSTRACTThis paper presents a simulation of locating noise source (Partial Discharge) on high-voltage apparatuses, by using antenna array that consisted of four monopole antennas as sensor to record the electromagnetic waves (EM) emitted from Partial Discharge (PD). The detection algorithm is based on the time difference of arrival (TDOA) of the signals received between antennas (by using one of four antennas as reference antenna). The methods to determine TDOAs are Akaike Information Criterion method, Energy Criterion method, Gabor Centroid method, threshold detection method, peak detection method, and/or cross-correlation method. These system use Y-shaped array configuration. The adjusted distance between antennas are 2 meter and 4 meter. From the observation and analysis results, Y-shaped array antenna configuration has accuracy 97.76%. The best method to get TDOA is the cross-correlation method.Keywords: PD, TDOA, antenna array.
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Dissertations / Theses on the topic "Monopole antenna"

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Schlub, Robert Walter, and n/a. "Practical Realization of Switched and Adaptive Parasitic Monopole Radiating Structures." Griffith University. School of Microelectronic Engineering, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20040610.112148.

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Switched and adaptive parasitic monopole array radiating structures are investigated. Antenna design is orientated toward increasing practicability for implementation in terrestrial wireless communication systems. A number of antennas are designed with the aid of optimization and commercial simulation software. Simulation procedure was verified with the experimental manufacture and measurement of the arrays. The antennas presented in this thesis comprise an active monopole surrounded by a ring of parasitic monopoles. Parasitic radiators are constructed with static loading to enable simple experimental realization. Beam positions of an electrically steered equivalent antenna are thus simulated. Antenna symmetry ensures the beam can be reproduced throughout the azimuth. Complex antenna geometries require antenna design through optimization. A genetic algorithm is employed with HFSS and NEC for electromagnetic analysis. The robust optimization method couples with simulation software flexibility to provide an effective design tool for arbitrary structures. The genetic algorithm is employed strictly for design and not complete structural optimization. Dual band, five and six element switched parasitic antennas are presented. Lumped elemental loading along the radiators provide resonance and directed radiation at two GSM frequencies. Load value, radiator dimension and spacing are incorporated as design parameters. Experimentally built, 10dB return loss bandwidths of 17.2% and 9.6% and front to back ratios of 12.6dB and 8.4dB at 900MHz and 1900MHz respectively are measured. To reduce the ground requirements of monopole arrays, a skirted ground structure for switched parasitic antennas is analyzed. A six element switched parasitic monopole array with conductive ground skirt exhibits a front to back ratio of 10.7dB and main lobe gain of 6.4dBi at 1.575GHz. Radiation is not elevated despite lateral ground terminating at the parasitic elements. Skirt height is observed to linearly control radiation elevation, depressing the principal lobe through 40 degrees from 23 degrees above the horizontal. The Electronically Steerable Passive Array Radiator or ESPAR antenna is an adaptive parasitic monopole array. An ESPAR radiating structure incorporating a conductive ground skirt is designed for operation at 2.4GHz. Utility is confirmed with a frequency sensitivity analysis showing consistent electrical characteristics over an 8.1% bandwidth. The antenna design is improved with optimization to reduce average principal lobe elevation from 25 degrees to 9.7 degrees.
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Lourens, Jako. "A wideband monopole antenna design." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80026.

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Thesis (MScEng)--Stellenbosch University, 2013.
ENGLISH ABSTRACT: The successful operation of a man-pack VHF jamming system requires a compact and efficient antenna operating over a wide bandwidth. The design of such an antenna is the focus of this thesis. The antenna should be of a practical size for a portable system and it must radiate energy efficiently across a frequency bandwidth in excess of a decade. A practical „target‟ specification of such an antenna has been drawn up based on the performance of a commercially available system. Several possible antenna topologies, each with a variety of loading section options, are tested using “Full wave” electromagnetic modelling (FEKO). Each topology/loading-section is numerically optimised for load element values by considering both its gain and reflection coefficient. Results of the „optimally loaded‟ solution for each topology are then compared to each other to arrive at the best overall design. The best result is found to be the traditional monopole whip-type antenna, with four R-L loading sections spread along its length. The simulated results show that the proposed antenna can be expected to meet the target standing wave ratio (SWR) specifications while offering a gain advantage of between 5 and 10 dBi higher than is available commercially. The selected design is constructed and its performance measured.
AFRIKAANSE OPSOMMING: Die suksesvolle werking van ʼn mobiele VHF "jammer‟ benodig ʼn kompakte antenna met ʼn bruikbare benuttingsgraad wat oor ʼn wyeband funksioneer. Die ontwerp van so ʼn antenna is die fokus van hierdie tesis. Die antenna moet kompak genoeg wees om draagbaar te wees en moet ʼn bruikbare benuttingsgraad hê oor ʼn frekwensie-bandwydte van meer as 10:1. ʼn Praktiese spesifikasie is opgestel vir die antenna deur te kyk na die sigblaaie van beskikbare stelsels. “Volgolf” elektromagnetiese modelleringsagteware is daarna gebruik om ʼn parametriese ondersoek te loods van verskillende antennas. Verskillende topologieë is getoets met ʼn verskeidenheid van belaaide seksies waar die topologieë ge-optimaliseer was vir wins en weerkaatskoëffisiënt. Die resultate vir elke optimale oplossing is vergelyk.Opgrond van hierdie resultate is bevind dat die beste topologie die tradisionele monopoolmas "whip-type‟ antenna is met vier RL lading afdelings langs die lengte versprei. Analise word gebruik om te wys dat verwag kan word dat dit aan die aanwins en staande golf verhouding (SGV) spesifikasies sal voldoen met n 10 dB verhoging in aanwins vir n laer SGV. Die geselekteerde ontwerp is gebou en gemeet om te verifieer dat dit aan die spesifikasies voldoen.
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Morsy, Mohamed Mostafa. "DESIGN AND IMPLEMENTATION OF MICROSTRIP MONOPOLE AND DIELECTRIC RESONATOR ANTENNAS FOR ULTRA WIDEBAND APPLICATIONS." OpenSIUC, 2010. https://opensiuc.lib.siu.edu/dissertations/169.

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Ultra wide-band (UWB) technology is considered one of the very promising wireless technologies in the new millennium. This increases the demand on designing UWB antennas that meet the requirements of different UWB systems. In this dissertation, different UWB antennas are proposed such as an antenna that covers almost the entire UWB bandwidth, 3.5-11 GHz, as defined by the federal communication commission (FCC). This antenna has a size of 50×40×1.5mm3. Miniaturized worldwide UWB antennas are also introduced. Miniaturized worldwide UWB antennas that have compact sizes of (30×20×1.5) mm3, and (15×15×1.5) mm3 are also investigated. The designed worldwide UWB antennas cover the UWB spectrums defined by the electronic communication committee (ECC), 6-8.5 GHz, and the common worldwide UWB spectrum, 7.4-9 GHz. A system consisting of two identical antennas (transmitter and receiver) is built in the Antennas and Propagation Lab at Southern Illinois University Carbondale (SIUC) to test the coupling properties between every two identical antennas. The performance of that system is analyzed under different ii conditions to guarantee that the transmitted signal will be correctly recovered at the receiver end. The designed UWB antennas can be used in many short range applications such as wireless USB. Wireless USB is used in PCs, printers, scanners, laptops, MP3 players, hard disks and flash drives. A new technique is introduced to widen the impedance bandwidth of dielectric resonator antennas (DRAs). DRA features compactness, low losses, and wideband antennas. Different compact UWB DRAs are investigated in this dissertation. The designed DRAs cover a wide range of frequency bands such as, 6.17-24GHz, 4.23-13.51GHz, and 4.5-13.6GHz. The designed DRAs have compact sizes of 1×1×1.5cm3, 0.9×0.9×1.32cm3, 0.6×0.6×1cm3, and 0.6×0.6×0.9cm3; and cover the following frequency bands 4.22-13.51GHz, 4.5-13.6GHz, 6.1-23.75GHz, and 6.68-26.7GHz; respectively. The proposed DRAs may be used for applications in the X, Ku and K bands such as military radars and unmanned airborne vehicles (UAV).
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Jedlicka, R. P., and J. M. Williamson. "Monopatch Antenna for Balloon Telemetry Applications." International Foundation for Telemetering, 1992. http://hdl.handle.net/10150/611958.

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International Telemetering Conference Proceedings / October 26-29, 1992 / Town and Country Hotel and Convention Center, San Diego, California
A new antenna design, which is particularly suited for balloon telemetry applications, is presented. In the past, simple monopoles have been utilized as transmit antennas on balloon payloads. The monopole radiation pattern has an inherent null along its axis. This causes an undesirable loss of signal when the balloon is directly overhead. To prevent this occurrence, a microstrip antenna patch was incorporated into the monopole design. This combination, a "monopatch" antenna, provides sufficient coverage even when the balloon is directly over the ground station. The monopatch has been successfully flown on high altitude balloon flights.
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Hurley, Robert C. "Computation of monopole antenna currents using cylindrical harmonic expansions." Thesis, Monterey, California. Naval Postgraduate School, 1988. http://hdl.handle.net/10945/22966.

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Approved for public release; distribution is unlimited
This thesis investigates the viability of a new method for numerically computing the input impedance and the currents on simple antenna structures. This technique considers the antenna between two ground planes and uses multiregion cylindrical harmonic expansions with tangential field continuity to obtain the surface currents and input impedance. The computed results are compared to the results obtained from the Numerical Electromagnetics Code for various physical parameters to assess computational accuracy.
http://archive.org/details/computationofmon00hurl
Lieutenant, United States Navy
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Lima, Larissa Cristiane Paiva de Sousa. "Design and experimental characterization of a metamaterial-assisted monopole antenna." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/18/18155/tde-12112014-080528/.

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In recent years a new class of materials, the metamaterials, has emerged in the scientific community. The use of these materials makes possible to achieve unique electromagnetic properties, such as the negative refractive index. Today there exist several applications that take advantage of these special properties, such as sensors, antennas and invisibility cloaks, aiming at improving their intrinsic characteristics. Based on these considerations, this project aims at developing metamaterials structures to control the radiation properties of antennas in the microwave range, such as gain and directivity. More specifically, it was also chosen chiral metamaterials, mainly due to the phenomenon of electromagnetic field rotation which opens the possibility to control efficiently the radiation properties of antennas. In addition, chiral metamaterials, which have proved to be a more attractive alternative to obtain negative or zero refractive index, enable a greater degree of freedom in the design of different structures. This work encompasses all different phases of the structure design, namely: project, computational modeling, fabrication, and characterization of the proposed structures. We show improvements for the gain that in some cases reaches more than the double of the conventional monopole antenna gain and for the return loss parameter, which reaches minimum values. We also could maintain good efficiency and improve the input impedance matching. Finally, it is worth mentioning that this new technology also has the great potential to be applied in the telecommunication devices, particularly to improve communications based on antennas.
Nos últimos anos uma nova classe de materiais, os metamateriais, emergiu na comunidade científica. O uso desses materiais torna possível alcançar propriedades eletromagnéticas singulares, como o índice de refração negativo. Hoje existem vastas aplicações que usufruem destas propriedades especiais, como os sensores, mantas de invisibilidade e antenas, onde se procura o aperfeiçoamento de suas características intrínsecas. Com base nestas considerações, este projeto buscou desenvolver estruturas metamateriais para controle das propriedades de radiação de antenas na faixa de micro-ondas, tais como diretividade e ganho. Mais especificamente, foram utilizados os metamateriais quirais, principalmente devido ao fenômeno de rotação do campo eletromagnético que abre a possibilidade de controle mais eficiente das propriedades de radiação de antenas. Além disso, os metamateriais quirais, por se mostrarem uma alternativa mais atraente para se obter meios com índice de refração zero ou negativo, possibilitam um maior grau de liberdade no projeto de diferentes estruturas. Este trabalho contempla, ainda, todas as etapas de projeto de tais estruturas, quais sejam: projeto, modelagem computacional, fabricação, e caracterização das estruturas. Mostramos melhorias para o ganho que, em alguns casos, chega a mais do que o dobro do ganho da antena monopolo convencional e para o parâmetro de perda de retorno, que atinge valores mínimos. Nós também mantivemos uma boa eficiência e melhoramos o casamento de impedância de entrada. Finalmente, vale salientar que essa nova tecnologia também apresenta grande potencial de ser aplicada em dispositivos de telecomunicações, com o intuito de aprimorar a comunicação baseada em antenas.
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Hussain, Asif Jamshaid. "Design of an Ultra Wideband (UWB) Circular Disc Monopole Antenna." Thesis, Linnéuniversitetet, Institutionen för datavetenskap, fysik och matematik, DFM, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-34605.

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My task was to design a circular disc monopole antenna in the Ultrawideband range i.e. 3.1 - 10.6 GHz using the ADS (Advanced Design System) package. In order to achieve the desired matching I simulated dierent sizes of the radiator, feed line and the ground plane of the antenna and observed the current flow in a circular monopole at different frequencies. I did some miniaturization (circular shape and chopping) of the antenna and observed the current flow and radiation pattern in 2D and 3D.
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Christman, Alan M. "Validation of NEC-3 (Numerical Electromagnetics Code) with applications to MF and HF antenna technology." Ohio : Ohio University, 1990. http://www.ohiolink.edu/etd/view.cgi?ohiou1172605318.

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Siao, Sin-long, and 蕭新朧. "Miniaturized GPS chip antenna and multiband monopole antenna." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/09486805850704632333.

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碩士
國立臺灣科技大學
電機工程系
97
For future communication systems, to simultaneously meet various requirements such as low profile, compact size, light weight and easy fabrication, the dimension consideration of antenna design is a very critical part. The radiation performance of the antenna also directly affects the received signal and communication quality. Therefore this thesis proposes a miniature GPS antenna to be built in the mobile phone, PDA and smart phone for obtaining the satellite signals. A commercial EM solver, HFSS has been utilized to design prototype and investigate the performance variation for antenna located at different positions in the test board. Moreover, a multi-band monopole antenna is also presented to integrate more wireless access functions. The operating band of the proposed antenna is composed of GSM, DCS, PCS, UMTS, Bluetooth, WLAN、WiMax, Hyper LAN, WWAN and WiFi. As to achieve a better radiation performance, the antenna also employs two back-strips to enhance more resonant frequencies and flexibly adjust input impedance in this study.
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蔡文益. "Broadband Fractal Circular-Monopole Antenna." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/ejrb2e.

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碩士
景文科技大學
電腦與通訊研究所
99
In this paper, a novel broadband Fractal circular-monopole antenna is presented. This antenna consists of printed circular iteration with two iterating level and ground-plane with radius 25mm, making it easy to making it easy to combine directional, high gain and wide bandwidth. A prototype is designed to operate at 1.5GHz-5.86GHz, the measured 10 dB bandwidth is nearly 1:2 at the center frequency of 3.775GHz. Experimental results are shown to verify the validity of theoretical work. Fractal monopole antenna is formed with hollow of circle, which featuring of minification, multi-frequency bands and wide bands. The planar fractal monopole antenna is based on the Sierpinski carpet concept and to modified, the Sierpinski fractal has generated two iterations, use the decomposition algorithm by circular, and compare these with integrators and initiator type. Firstly, base on generally circular disc to generate hollow of circular, this initiator has a circumference of and 1mm trace width. In the decomposition algorithm, a geometric ratio of circle is taken and joining the midpoints of union of the circles central, reduce the circle to 1/3 diameter and canonical Sierpinski carpet algorithm to fill the circle with twice mathematics equals 1/9 diameter by 2nd iteration.The geometrical structure and dimensions of the proposed monopole type antenna is printed on FR4 substrate and is simulated by using FEM based electromagnetic simulator, Ansoft HFSS. All of them describe a multiband behavior of fractal antenna. This behavior is consistent from the input return loss and gain; moreover radiation patterns planes of view. The same scale factor existing among similar structures in the fractal circular-shape. It can be summarized that the self-similarity properties of the fractal structure are translated into its electromagnetic behavior. The current density distributions have a similar and vary in complicated among bands as well. Such distributions allows flexibility in matching multi- and width band operations in which a larger frequency required, such as FemtoCell and UMTS base station application including LTE, UMTS, GPS L1, WIFI, and WiMax. The circular monopole type is based on fractal structure and refers to the Sierpinski gasket self-similarity algorithm, a prototype of the design is successfully implemented with close agreement between measurement and simulation. The fractal geometry and overall size can be effectively utilized ID or Logo surface for integrating with other components in IT products.
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Books on the topic "Monopole antenna"

1

Monopole antennas. New York: Marcel Dekker, 2003.

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Pote, J. H. Automatic antenna matching unit for H.F. - band monopole antennas. Birmingham: University of Birmingham, 1985.

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Abd El Aziz Mohamed Darwish. Design of a continuous resistively loaded monopole antenna. Monterey, Calif: Naval Postgraduate School, 1993.

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Hurley, Robert C. Computation of monopole antenna currents using cylindrical harmonic expansions. Monterey, Calif: Naval Postgraduate School, 1988.

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FitzGerrell, R. G. Monopole impedance and gain measurements of finite ground planes. Washington, D.C: U.S. Dept. of Justice, National Institute of Justice, 1989.

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Padmosutoyo, Slamet Suharsa. NEC, NECGS, and MININEC numerical models of LF top-hat monopole antennas. Monterey, Calif: Naval Postgraduate School, 1989.

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DeMinco, N. Free-field measurements of the electrical properties of soil using the surface wave propagation between two monopole antennas. Washington, DC]: U.S. Department of Commerce, National Telecommunications and Information Administration, 2012.

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Mahmud, Riaz. A study of LF top-loaded monopole antennas using numerical modeling techniques: Comparison to scaled test model measurements. Monterey, Calif: Naval Postgraduate School, 1987.

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M, Weiner Melvin, ed. Monopole elements on circular ground planes. Norwood, MA: Artech House, 1987.

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Raines, Jeremy. Folded Unipole Antennas: Theory and Applications. McGraw-Hill Professional, 2007.

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Book chapters on the topic "Monopole antenna"

1

Mohd Hasli, Mohamad Amir Imran, Ahmad Rashidy Razali, Aslina Abu Bakar, Mohd Aminudin Murad, and M. Feroze Akbar J. Khan. "Wideband Monopole Antenna for WWAN Services." In Lecture Notes in Electrical Engineering, 723–33. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-24584-3_61.

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Mayboroda, Dmitry, and Sergey Pogarsky. "Microstrip Monopole Antenna with Complicated Topology." In Advances in Information and Communication Technology and Systems, 394–403. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58359-0_22.

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Lim, M. C., S. K. A. Rahim, M. I. Sabran, and A. A. Eteng. "Monopole Ellipse Antenna for Ultra-Wideband Applications." In Theory and Applications of Applied Electromagnetics, 137–44. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17269-9_15.

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Aminu-Baba, Murtala, Mohammad Kamal A. Rahim, Farid Zubir, Mohd Fairus Mohd Yusoff, and Noor Asmawati Samsuri. "Wideband Monopole Antenna with Rotational Circular SRR." In 10th International Conference on Robotics, Vision, Signal Processing and Power Applications, 419–24. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-6447-1_53.

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Prasad, K. V., M. V. S. Prasad, and Padarti Vijaya Kumar. "Monopole Antenna for UWB Applications with DGS." In Algorithms for Intelligent Systems, 229–36. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2109-3_21.

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Jain, Preeti, Bhupendra Singh, Sanjeev Yadav, and Ashu Verma. "A Semicircular Monopole Antenna for Ultra-wideband Applications." In Advances in Intelligent Systems and Computing, 339–45. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-0129-1_36.

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Ashok Kumar, S., and T. Shanmuganantham. "Implanted CPW Fed Monopole Antenna for Biomedical Applications." In Advances in Computing and Information Technology, 97–105. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31600-5_10.

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Mahmood, Faraz, Syed Muhammad Usman Ali, Mahmood Alam, and Magnus Willander. "Design of WLAN Patch and UWB Monopole Antenna." In Communications in Computer and Information Science, 295–304. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28962-0_29.

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Samanta, Susamay, Sagnik Chakrabarti, Aniket Jana, P. Soni Reddy, and Kaushik Mandal. "Miniaturized Flexible Monopole Antenna for Wearable Biomedical Applications." In Lecture Notes in Bioengineering, 415–21. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6915-3_41.

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Mishra, Raj Gaurav, Ranjan Mishra, and Piyush Kuchhal. "Design of Broadband Monopole Microstrip Antenna Using Rectangular Slot." In Proceeding of International Conference on Intelligent Communication, Control and Devices, 683–88. Singapore: Springer Singapore, 2016. http://dx.doi.org/10.1007/978-981-10-1708-7_78.

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Conference papers on the topic "Monopole antenna"

1

James, Sagil, Shubham Birar, Riken Parekh, Kushal Jain, and Kiran George. "Preliminary Study on Fractal-Based Monopole Antenna Fabricated Using 3D Polymer Printing and Selective Electrodeposition Process." In ASME 2019 14th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/msec2019-2901.

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Abstract Modern wireless communication industries need high performance antennas having better connectivity, ultra-wide bandwidth, lightweight and miniaturized. The current design and manufacturing process for antennas have several limitations. This study aims to address some of the limitations of designing and fabricating modern radio frequency wireless antennas. The study proposes a combination of fractal-based monopole antenna design followed by fabrication using additive manufacturing and selective electrochemical deposition process. Multiple designs of monopole antennas are compared, and the performance testing showed that the three-dimensional fractal-based antenna design showed the highest performance. The results of this study would be extremely crucial for overcoming challenges of modern antenna technologies.
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Li Jian-Ying, Tan Peng-Khiang, and Gan Yeow-Beng. "Broadband printed monopole antenna." In 2006 IEEE Antennas and Propagation Society International Symposium. IEEE, 2006. http://dx.doi.org/10.1109/aps.2006.1710885.

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Paryani, Rajesh C., and Rod Waterhouse. "Wideband semielliptical monopole antenna." In MILCOM 2011 - 2011 IEEE Military Communications Conference. IEEE, 2011. http://dx.doi.org/10.1109/milcom.2011.6127714.

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Xing, Lei, Yi Huang, Saqer S. Alja'afreh, and Steve J. Boyes. "A monopole water antenna." In 2012 Loughborough Antennas & Propagation Conference (LAPC). IEEE, 2012. http://dx.doi.org/10.1109/lapc.2012.6402985.

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Sivalingam, P., and Sooliam Ooi. "Electronically tunable monopole antenna." In 2008 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting. IEEE, 2008. http://dx.doi.org/10.1109/aps.2008.4620065.

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Landeau, Thomas, Onofrio Losito, Giuseppe Palma, Vincenza Portosi, Alain Jouanneaux, and Franceso Prudenzano. "Multiple rhombus monopole antenna." In 2015 German Microwave Conference (GeMiC). IEEE, 2015. http://dx.doi.org/10.1109/gemic.2015.7107829.

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Shukla, Saurabh, and A. R. Harish. "Solomon Knot Monopole Antenna." In 2018 IEEE Indian Conference on Antennas and Propogation (InCAP). IEEE, 2018. http://dx.doi.org/10.1109/incap.2018.8770925.

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Incesulu, Hakan, Gul Ulutas, Hakan Bilge, S. Taha Imeci, and Tahsin Durak. "F-shaped monopole antenna." In 2017 International Applied Computational Electromagnetics Society Symposium - Italy (ACES). IEEE, 2017. http://dx.doi.org/10.23919/ropaces.2017.7916043.

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Ammann, M. J. "Square planar monopole antenna." In IEE National Conference on Antennas and Propagation. IEE, 1999. http://dx.doi.org/10.1049/cp:19990010.

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Kaur, I., N. Khan, P. Padamlata, and S. Sumit. "Dielectric Resonator Antenna Loaded with Monopole Antenna." In 2013 Third International Conference on Advanced Computing & Communication Technologies (ACCT 2013). IEEE, 2013. http://dx.doi.org/10.1109/acct.2013.30.

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Reports on the topic "Monopole antenna"

1

Mohamed, Darwish A., and Ramakrishna Janaswamy. Design of a Continuous Resistively Loaded Monopole Antenna. Fort Belvoir, VA: Defense Technical Information Center, May 1993. http://dx.doi.org/10.21236/ada265852.

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Elliot, P. G., E. N. Rosario, and R. J. Davis. Novel Quadrifilar Helix Antenna Combining GNSS, Iridium, and a UHF Communications Monopole. Fort Belvoir, VA: Defense Technical Information Center, April 2012. http://dx.doi.org/10.21236/ada562143.

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Zaghloul, Amir I., Youn M. Lee, Gregory A. Mitchell, and Theodore K. Anthony. Enhanced Ultra-Wideband (UWB) Circular Monopole Antenna with Electromagnetic Band Gap (EBG) Surface and Director. Fort Belvoir, VA: Defense Technical Information Center, August 2014. http://dx.doi.org/10.21236/ada608706.

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Doerry, Armin, and Douglas Bickel. Two-Channel Monopulse Antenna Null Steering. Office of Scientific and Technical Information (OSTI), April 2020. http://dx.doi.org/10.2172/1617831.

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Rivera, David F., and John P. Casey. Approximate Capacitance Formulas for Electrically Small Tubular Monopole Antennas. Fort Belvoir, VA: Defense Technical Information Center, January 1995. http://dx.doi.org/10.21236/ada302235.

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Crull, E., C. Brown, Jr, M. Perkins, and M. Ong. Experimental Validation of Lightning-Induced Electromagnetic (Indirect) Coupling to Short Monopole Antennas. Office of Scientific and Technical Information (OSTI), July 2008. http://dx.doi.org/10.2172/945757.

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Brock, Billy C., and Steven E. Allen. Correcting Cross-polarization Monopulse Response of Reflector Antennas. Office of Scientific and Technical Information (OSTI), February 2015. http://dx.doi.org/10.2172/1433066.

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Doerry, Armin W., and Douglas L. Bickel. Single-Axis Three-Beam Amplitude Monopulse Antenna-Signal Processing Issues. Office of Scientific and Technical Information (OSTI), May 2015. http://dx.doi.org/10.2172/1183360.

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9

Camell, D. G. NIST calibration procedure for vertically polarized monopole antennas, 30 kHz to 300 MHz. Gaithersburg, MD: National Bureau of Standards, 1991. http://dx.doi.org/10.6028/nist.tn.1347.

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